Site log - Melbourne (November 1998) Flags: 1-Satellite coincidence data 2-Scan in TSDIS data 3-Scan not in TSDIS data A-Major problem (moderate to strong AP &/or widespread coverage) B-Minor problem (weak AP &/or very litte coverage) ***************************************************************************************** 01 Nov 98: Widely scattered, often isolated, precipitation cores present over the Atlantic intermittently throughout the day (nothing too significant). Data processed: 0005-2359 Z Satellite Coincidence: 0005Z(63 km), 0141Z(628 km), 0455Z(295 km), 0631Z(663 km), 2252Z(509 km) QC notes: 0154-0351Z: scattered weak AP remaining (no precip present) -----> corrected 0806-1005Z: weak/moderate AP splotches remaining -----> almost completely corrected except for one problematic volume scan...see the following flag: 3B !!FLAG!! ===> 0827Z: weak AP splotches remain withinn 150 km from the radar which could not be removed with removing significant precip as well. * AP RANGE: AP located ~120-150 km from radar 1103-1416Z: widespread weak/moderate AP remaining -----> vastly improved, with all but a couple vos's completely corrected. The vos's which still contain minor contamination are detailed in the following flags: 3B !!FLAG!! ===> 1133Z: minor AP splotches remaining S of radar which could not be removed without removing significant precip as well. Moved vos to bad_files_not_in_1C.hdf directory * AP RANGE: AP located ~125 km from radar 3A !!FLAG!! ===> 1235Z: moderate Ap splotch remains N of radar which could not be removed without removing significant precip as well. Moved vos to bad_files_not_in_1C.hdf directory. * AP RANGE: AP located ~95 km from radar 1232Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory ***************************************************************************************** 02 Nov 98: Scattered light showers, mainly off the coast, pop up preiodically throughout the day (nothing too significant) Data processed: 0010-2359 Z Satellite Coincidence: 0029Z(390 km), 0342Z(565 km), 0519Z(194 km), 2316Z(54 km) QC notes: 1404-2132Z: removal of light precipitation -----> corrected ******************************************************************************************* 03 Nov 98: Scattered cells and light showers over the Atlantic before 13Z and some light showers west of the radar after 19Z, but all in all, nothing too significant. Data processed: 0009-2359 Z Satellite Coincidence: 0053Z(678 km), 0230Z(729 km), 0406Z(197 km), 2340Z(471 km) QC notes: 0919-1418Z: scattered to widespread weak/moderate/intense AP remaining W of radar -----> improved, but several problematic vos's still exist where the AP could not be removed without removing light precip as well...see the following flags: 3A !!FLAG!! ===> 0924Z: moderate AP speck remaining W of radar. * AP RANGE: AP located ~100 km from radar 2B,3B !!FLAG!! ===> 0939-1034Z: modeate/intense AP splothces located roughly 100 km radar werte removed but some weak AP patches still remain further west of the radar. * AP RANGE: AP located ~130 km from radar 3A !!FLAG!! ===> 1039-1049Z: moderate/intense AP splotches remain. * AP RANGE: AP located 90-130 km from radar 3B !!FLAG!! ===> 1054Z: weak AP splotches remaining (intense AP effectively removed) * AP RANGE: AP located ~130 km from radar 2A,3A !!FLAG!! ===> 1059-1313Z: weak/moderate/intense AP splotches remain scattered about W to NW of radar. Could not remove this AP without removing precip as well. * AP RANGE: AP located ~45-150 km from radar 1215Z: bad (incomplete) volumne scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 2324-2359Z: weak CAE remaining SW of radar 1B !!FLAG!! -----> improved, but the CAE could not be completely removed because it is embedded in light precip. Since the echo is very weak and covers little area, the flag is very minor. * AP RANGE: embedded CAE located ~80 km from radar ******************************************************************************************* 04 Nov 98: Early on, light showers continue to stream in from the southwest, slowly increasing in coverage. By 08Z, most of the scope south of the radar is covered by light to moderate precipitation as convection begins moving into range from the northwest. More significant convection present within range, north of the radar, by 1130Z. By 16Z, the entire scope is coverered with light to moderate precipitation, along with some embedded convection. The heavy rain event, where the entire scope is covered, persists through the end of the day. Data processed: 0005-2357 Z Satellite Coincidence: 0254Z(497 km), 0430Z(323 km), 2227Z(160 km) QC notes: 0035Z: weak AP splotch remaining N of radar -----> corrected 0150-0235Z: moderate AP splotch remaining N of radar -----> corrected 0705-0955Z: small hole in precip over radar (Z2 too high) -----> corrected 1030-2357Z: small hole in precip over radar (Z2 too high) -----> corrected 1110-1300Z: scattered to widespread moderate/intense AP and bird echo remnants remaining (much of which is embedded in precip) -----> only very slightly improved because most of the false echo is embedded in precip and when it is not, it still can not be removed without removing significant precip...see the following flags. 3B !!FLAG!! ===> 1105Z: moderate false echo splotches are, for the most part, masked by precipitation of the same intensity, leaving only a hint of its existence...hence the minor flag * AP RANGE: embedded AP located ~40 km from radar 2A,3A !!FLAG!! ===> 1110-1205Z: moderate to intense remains, mostly embedded in light precip which means there is no remedy. * AP RANGE: embedded AP located ~30-130 km from radar 2B,3B !!FLAG!! ===> 1215-1300Z: moderate false echoes remain but they are partially masked by the precip of similar intensity, located in the same region... hence the minor flags. * AP RANGE: embedded AP located ~60-120 km from radar 1205Z: precip-eating mode -----> corrected 1214Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1305-1535Z: widespread, horrifically intense AP remaining (mostly embedded in precip) -----> very little could be done (if anything) to remove this embedded and very intense AP...see the following flags: 2A+,3A+ !!FLAG!! ===> 1305-1505Z: horrifically intense AP remains embedded in light to moderate precip. * AP RANGE: embedded AP located ~30-150 km from radar 2A,3A !!FLAG!! ===> 1510-1535Z: intense AP remains embedded in light to moderate precip, of which nothing could be done to remove it. * AP RANGE: embedded AP located ~75-120 km from radar 1615-1730Z: horrifically intense AP remains, embedded in precip SSE of radar -----> nothing could be done to remove this embedded AP...see the following flags: 3A !!FLAG!! ===> 1615-1625Z: embedded, intense AP remains * AP RANGE: embedded AP located ~75 km from radar 2A+,3A+ !!FLAG!! ===> 1630-1720Z: horrifically intense AP remains embedded in light to moderate precip. * AP RANGE: embedded AP located ~50-130 km from radar 3A !!FLAG!! ===> 1725-1730Z: intense, embedded AP remains. Moved vos 1730Z to bad_files_not_in_1C.hdf directory. * AP RANGE: embedded Ap located ~105 km from radar 2250Z: precip-eating mode -----> corrected 2357Z: precip-eating mode -----> corrected ******************************************************************************************** 05 Nov 98: The full brunt of the heavy rain event that is Tropical Storm Mitch makes its way into Central Florida on this day. Copious amounts of rainfall and some intense convection (mainly off the coast) throughout the day. Possible mesocyclone evident in cell SE of radar around 1220Z. Data processed: 0005-0529 Z 1105-2355 Z Satellite Coincidence: 0004Z(718 km), 0141Z(693 km), 0318Z(92 km), 2115Z(237 km), 2252Z(543 km) QC notes: 0005-1840Z: small hole in precip over radar (Z2 too high) -----> corrected 1228Z: bad (incomplete) volume scan -----> corrected 1105-1305Z: weak second-trip echo present NE of radar 2B,3B !!FLAG!! -----> improved, but splotches of weak second-trip still exist here and there in some vos's which could not be removed without removing significant precip as well. 1315-2355Z: removal of light precipitation -----> corrected ******************************************************************************************** 06 Nov 98: A few scattered showers well east of the radar early on, but this precip moves out of range rapidly, leaving no rain for the rest of the day. Data processed: 0000-2353 Z Satellite Coincidence: 0205Z(418 km), 0342Z(462 km), 2003Z(713 km), 2139Z(264 km), 2316Z(749 km) QC notes: no problems ******************************************************************************************* 07 Nov 98: No precipitation on this day. Data processed: 0004-2356 Z Satellite Coincidence: 0053Z(646 km), 0229Z(24 km), 2027Z(111 km), 2203Z(606 km) QC notes: no problems ******************************************************************************************* 08 Nov 98: No precipitation on this day. Data processed: 0006-2359 Z Satellite Coincidence: 0117Z(332 km), 0253Z(605 km), 1914Z(569 km), 2050Z(354 km) QC notes: 0233-0807Z: scattered weak AP remaining W of radar -----> corrected 1123-1439Z: scattered weak/moderate bird remnants/AP -----> corrected ******************************************************************************************* 09 Nov 98: No precipitation on this day. Data processed: 0008-2352 Z Satellite Coincidence: 0004Z(591 km), 0141Z(143 km), 1938Z(9 km), 2115Z(659 km), 2252Z(741 km) QC notes: no problems (some weak chaff shows up N of radar near 23Z but it is beyond 150 km and therefore not a problem) ******************************************************************************************* 10 Nov 98: A few scattered light showers at the begininng and ending of the day but nothing significant. Data processed: 0002-2353 Z Satellite Coincidence: 00028Z(237 km), 1826Z(424 km), 2002Z(440 km), 2316Z(524 km) QC notes: 0605-1711Z: removal of light precipitation -----> corrected 1224Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 2304-2353Z: removal of light precipitation -----> corrected ******************************************************************************************** 11 Nov 98: Scattered showers along with a thin line of weak convection stream northwestward from the Atlanitc through 14Z. Although the precip on this day is more substantial than the past few days, it is still not too significant. Data processed: 0003-1423 Z 2105-2351 Z Satellite Coincidence: 0052Z(273 km), 1849Z(119 km), 2026Z(703 km), 2203Z(708 km), 2340Z(133 km) QC notes: 0003-1423Z: removal of light precipitation -----> corrected. At times, when dealing with more AP present at the same time as light precip (see following QC notes), some of the weakest showers were removed while battling the false echo, but the significant rain cores were always left in and therefore, it is believed that these periods do not warrent flags. 0742-0802Z: moderate AP splotches remaining -----> corrected. As mentioned above, some weak showers were also removed in the process but the significant rain cores remain and the loss of this weak precip is deemed a fair trade-off to remove strong AP 0838-0938Z: moderate/intense AP remaining W & S of radar -----> improved, but some AP still exists in a few vos's (see the following flags): 3A !!FLAG!! ===> 0858Z: moderate/intense AP speck remains NW of radar. An A- flag is given because of the small areal coverage of the AP (as opposed to A flag). * AP RANGE: AP located ~90 km from radar 2A,3A !!FLAG!! ===> 0903-0938Z: moderate/intense AP splotches remain. * AP RANGE: AP located ~85-90 km from radar 1225Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1308-1353Z: weak radial spike remnants remaining NNW -----> improved, but some AP still exists in a few volume scans...see the following flags: 3B !!FLAG!! ===> 1342Z: weak radial spike remnant remains * AP RANGE: AP located ~140 km from radar 3A !!FLAG!! ===> 1348-1358Z: weak/moderate AP splotches remain * AP RANGE: AP located ~125-150 km from radar ******************************************************************************************** 12 Nov 98: A few scattered showers NE of radar after 12Z, but none of the precip is significant. Data processed: 0002-2357 Z Satellite Coincidence: 1737Z(286 km), 1914Z(517 km), 2228Z(448 km) QC notes: 1426-2337Z: removal of light precipitation -----> corrected ******************************************************************************************** 13 Nov 98: An area of quasi-stationary, scattered, unorganized weak convection persists north of the radar through 20Z, when moderate cores of rain finally dissipate. A few more weak cells develop in the same region by the end of the day. Although, precip is present for much of the day, it still is not particularly significant since the cells are rather weak and few and all precip takes place out over the Atlantic. Data processed: 0002-2356 Z Satellite Coincidence: 0004Z(411 km), 1801Z(228 km), 1938Z(739 km), 2115Z(663 km), 2252Z(18 km) QC notes: 0122-0242Z: intense AP remaining W of radar -----> corrected 0425-0732Z: removal of light precipitation -----> corrected (some weak AP is re-introduced in a couple of vos's but it is not a concern since it is located beyond 150 km from the radar) 1306-1337Z: horrifically intense AP remaining NW of radar 2A,3A !!FLAG!! -----> slightly improved, but could not fully remove intense AP without removing significant precip as well....hence, the AP remains and the vos's are flagged. Moved vos 1337Z to the bad_files_not_in_1C.hdf directory * AP RANGE: AP located ~80 km from radar 1347-1447Z: moderate/intense AP splotch remaining NW of radar -----> much improved, but some AP still remains in a handful of vos's...see the following flags: 3A !!FLAG!! ===> 1402-1407Z: intense AP splotch remains which could not be removed without removing significant precip as well....moved vos's to bad_files_not_in_1C.hdf directory * AP RANGE: AP located ~80 km from radar 3A !!FLAG!! ===> 1422Z: weak AP splotch with embedded intense AP speck remains W of radar * AP RANGE: AP located ~80 km from radar 3A !!FLAG!! ===> 1437Z: intense AP splotch remaining W of radar * AP RANGE: AP located ~80 km from radar 1452-1512Z: intense AP remaining NW of radar -----> improved, but some AP still remains in a couple of vos's....see the following flags: 3A !!FLAG!! ===> 1452-1502Z: intense AP remaining W of radar which could not be removed without removing significant precip as well. Moved vos 1502Z to bad_files_not_in_1C.hdf directory. * AP RANGE: AP located ~90 km from radar 1625Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory ******************************************************************************************** 14 Nov 98: Scattered convection north and east of the radar through 13Z. (nothing too significant). No precipitation after 14Z. Data processed: 0002-2358 Z Satellite Coincidence: 1649Z(154 km), 1826Z(585 km), 2139Z(363 km), 2316Z(554 km) QC notes: 0152Z: moderate AP splotch remaining W of radar -----> corrected 0532-1358Z: scattered weak/moderate/intense AP remaining -----> improved, but some problem scans still exist where AP could not be removed without removing significant precipitation as well. See the following flags: 2A,3A !!FLAG!! ===> 0627-0657Z: moderate/intense AP splotch remaining N of radar * AP RANGE: AP located ~45 km from radar 3A !!FLAG!! ===> 0737-0742Z: moderate/intense AP splotch remaining W of radar * AP RANGE: AP located ~145 km from radar 2B,3B !!FLAG!! ===> 0858-0903Z: weak/moderate AP splotch remaining N of radar * AP RANGE: AP located ~130 km from radar 2A,3A !!FLAG!! ===> 0938-1008Z: intense AP speck remaining N of radar * AP RANGE: AP located ~45 km from radar 2A,3A !!FLAG!! ===> 1038-1223Z: moderate/intense AP splotches remaining N of radar (more coverage than previous flags) * AP RANGE: AP located ~45 km from radar ******************************************************************************************** 15 Nov 98: Only precipitation on this day comes in the form of widely scattered showers off the coast which persist only for a few hours (nothing too significant). Data processed: 0008-2351 Z Satellite Coincidence: 1537Z(619 km), 1713Z(323 km), 2027Z(611 km), 2203Z(99 km) QC notes: 0650Z: intense AP splotch remaining NW of radar -----> corrected 1343Z: moderate AP splotch remaining NW of radar -----> corrected 1412-1521Z: removal of light precipitation -----> corrected ******************************************************************************************** 16 Nov 98: Area of moderate precipitation with some embedded convection moves into southern region of scope after 16Z. Precip continues to head off to the northeast, out to sea, and weaken through the end of the day. Data processed: 0001-2358 Z Satellite Coincidence: 1600Z(47 km), 1737Z(680 km), 2050Z(277 km), 2227Z(698 km) QC notes: 1148Z: bird remnants remaining NW of radar -----> corrected 1823-2358Z: removal of light to moderate precipitation -----> the precip removal problem was corrected but not without casualties. The precipitation which was being "chunked out" by the algorithm was extrremely shallow, which means I has to really relax the parameters to return it all to the field. Therefore, some AP was also re-introduced which could not be removed without removing this precip as well (this includes the following QC note for 2338-2358Z but I will cover that flag there. See the following flags: 1B,2B,3B !!FLAG!! ===> 1828-2058Z: scattered weak AP specks and splotches were re-introduced when the parameters were slackened for the precip removal problem. Luckily, the AP is quite weak and possesses little areal coverage. * AP RANGE: AP located from 50-120 km from radar 2A,2B,3A,3B !!FLAG!! ===> 2308-2358Z: weak/moderate/intense AP is either re-introduced or could not be removed without removing precip as well. * AP RANGE: AP located 60-150 km from radar 2338-2358Z: moderate/intense radial spike remnants remaining NW of radar 3A !!FLAG!! -----> could not remove Ap without removing precip as well (see note under 1823-2358Z QC note). * AP RANGE: AP located ~110-150 km from radar ******************************************************************************************** 17 Nov 98: Early on, a couple bands of light (and extremely shallow) precipitation are present soutwest of the radar which continue to track out to sea. All light showers in this region either dissipate or move out of range by 04Z, leaving only widely scattered shower cores for the remainder of the day. Although the light shower bands present early on possess an appreciable areal coverage, precip on this day is still considered relatively insignificant due to how weak it is. Data processed: 0004-2354 Z Satellite Coincidence: 1448Z(475 km), 1624Z(411 km), 1938Z(549 km), 2115Z(226 km) QC notes: 0004-0134Z: removal of light, shallow precipitation 2B,3B !!FLAG!! -----> improved, but some very light precip at closer ranges to the radar was not completely brought back. THis was because to do so, even more AP would have been brought back than what is already present, which in my opinion would be worse than having some light precip (which may or may not be reaching the ground) left out of the field. In any event, these vos's are going to receive major flags for the amount of weak, moderate, and horrifically intense AP which could not be removed without removing precip as well (see following QC notes) 0004-0034Z: moderate to horrifically intense AP remaining 2A,3A !!FLAG!! -----> this strong AP could not be removed since parameters could not only be made more aggressive, but they had to be slackened to fix the precip-removal problem (see previous QC note). So, the AP remains and it is ugly, but, since our number one priority is always saving the precipitation, this is how it has to be. * AP RANGE: AP located ~80-150 km from radar 0039-0134Z: weak AP remaining 2B,3B !!FLAG!! -----> weak AP remains since it could not be attacked while drastically weakening parameters in order to bring back light precipitation (see first QC note). * AP RANGE: AP located ~60-150 km from radar 0149Z: weak AP splotch remaining NNW of radar -----> corrected. Some very light showers (if the rain is actually reaching the ground) were removed in the process but this is deemed an acceptable tradeoff due to the relative insignificance of the removed precip. 0209-0404Z: removal of light, shallow precipitation -----> corrected, but some weak AP patches were also re-introduced in the process (nothing too significant but are flagged nontheless): 2B,3B !!FLAG!! ===> 0209-0309Z: weak AP splotches remaining N of radar which could not be removed without removing precip as well. * AP RANGE: AP located ~120 km from radar 3B !!FLAG!! ===> 0314-0319Z: weak/moderate AP splotch remaining * AP RANGE: AP located ~120 km from radar 3B !!FLAG!! ===> 0324-0334Z: weak AP splotches remaining. Moved 0334Z to bad_files_not_in_1C.hdf directory. * AP RANGE: AP located ~120 km from radar 0519-0554Z: moderate AP speck remaining near radar -----> corrected 1344-1409Z: weak AP (possibly second-trip?) remaining SW of radar -----> corrected ******************************************************************************************* 18 Nov 98: Widely scattered convection present off and on northeast of the radar after 07Z. Data processed: 0004-1614 Z 1811-2355 Z Satellite Coincidence: 1512Z(83 km), 1649Z(689 km), 1826Z(721 km), 2002Z(170 km) QC notes: 0004-0409Z: scattered weak AP remaining (no precip present) -----> corrected 0954-1359Z: removal of light precipitation -----> corrected 1227Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory ******************************************************************************************* 19 Nov 98: Scattered convection present throughout the day. Data processed: 0000-2359 Z Satellite Coincidence: 1400Z(333 km), 1536Z(491 km), 1850Z(476 km), 2026Z(361 km) QC notes: no problems ******************************************************************************************* 20 Nov 98: Barely any precipitation on this day except for a few very widely scattered cores on and off throughout the day (nothing too significant). Data processed: 0005-2355 Z Satellite Coincidence: 1424Z(190 km), 1600Z(727 km), 1737Z(681 km), 1914Z(61 km) QC notes: no problems ******************************************************************************************* 21 Nov 98: Convection and precipitation a little less sparse on this day (compared to last few), but activity is still of the scattered variety. Convection with more appreciable areal coverage develops over Florida (as well as over the Atlantic) after 20Z. Data processed: 0001-2359 Z Satellite Coincidence: 1311Z(204 km), 1448Z(560 km), 1801Z(397 km) 1938Z(498 km) QC notes: 1209Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory ******************************************************************************************* 22 Nov 98: Early on, scattered unorganized convective cells are present over Florida and the Atlantic. By 04Z, the small number of cells over land have weakened while the cells over the ocean have strengthened and increased in number. A shield of light precip also begins peeking into view from the northwest at this time. By 0830Z, four discrete bands of convection are present; three north of the radar, straddling the coast, and one east of the radar, fully over the Atlantic...all moving eastward. By 11Z, the southernmost convective band has fragmented leaving only weak convection and moderate stratiform rain, while the other bands north of the radar have merged into one line of precipitation (convection in this line has weakened temporarily but heavy rainfall is still associated with it). By 1216Z, the line is almost due east of the radar, anbd backbuilding development is evident along it's western flank. The band weakens and looses all linear characteristics by 15Z, but another weak, short-lived band of convection develops within a light precip shield north of the radar. Scattered convective activity (with considerably more activity over the Atlantic) ensues throught the end of the day. Data processed: 0004-2356 Z Satellite Coincidence: 1158Z(678 km), 1335Z(286 km), 1648Z(633 km), 1825Z(51 km) QC notes: 0017-0157Z: small hole in precip over radar (Z2 too high) -----> corrected ****************************************************************************************** 23 Nov 98: Unorganized convection present off and on throughout the day. On several occassions, unorganized cells merge to form more impressive clusters of moderate precipitation. Data processed: 0001-2356 Z Satellite Coincidence: 1222Z(80 km), 1359Z(620 km), 1713Z(308 km), 1849Z(643 km) QC notes: 0235-0410Z: small hole in precip over radar (Z2 too high) -----> corrected 0721-0811Z: moderate/intense AP splotch remaining NW of radar -----> corrected 0846Z: bad scan: missing sector -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1126Z: moderate AP splotch remaining W of radar -----> corrected 1410-1516Z: removal of light precipitation -----> corrected ****************************************************************************************** 24 Nov 98: Widespread convection and moderate stratiform precipitation, particularly over the Atlantic, through 21Z. Data processed: 0001-2357 Z Satellite Coincidence: 1110Z(528 km), 1246Z(379 km), 1600Z(573 km), 1737Z(177 km) QC notes: 0356-0406Z: weak/moderate AP splotches remaining SW of radar -----> corrected 0421-0426Z: moderate/intense AP splotches remaining SW of radar -----> corrected 0445Z: moderate AP splotch remaining SW of radar -----> corrected 1214Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1632-1737Z: small hole in precip over radar (Z2 too high) -----> corrected ****************************************************************************************** 25 Nov 98: Only precipitation on this day in the form of widely scattered weak showers (nothing significant). Data processed: 0002-2356 Z Satellite Coincidence: 1134Z(38 km), 1311Z(672 km), 1447Z(734 km), 1624Z(211 km) QC notes: 1220Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1416-1516Z: removal of light precipitation -----> corrected ******************************************************************************************* 26 Nov 98: Widely scattered convective cells and showers early on. By 08Z, convection becomes more numerous as cell mergers over the Atlantic created convective clusters with locally heavy rain. Clusters weaken and/or begin moving out of range by 14Z, bringing a return to only widely scattered convection and eventually even this dies away, leaving only weak showers. Data processed: 0000-2356 Z Satellite Coincidence: 1021Z(390 km), 1158Z(460 km), 1511Z(507 km), 1648Z(305 km) QC notes: 0135Z: weak AP splotch remaining NW of radar -----> corrected 1218Z: bad (incomplete) volume scan -----> corrected 2311-2356Z: scattered weak AP splotches remaining NW of radar -----> corrected ****************************************************************************************** 27 Nov 98: A few scattered convective cells over the ocean around midday. No precip after 16Z. Data processed: 0001-2354 Z Satellite Coincidence: 1045Z(145 km), 1222Z(712 km), 1358Z(700 km), 1535Z(110 km) QC notes: 0001-0026Z: weak AP splotches remaining -----> corrected 0051-0140Z: weak AP splotches remaining -----> corrected 0200Z: weak AP splotches remaining -----> corrected 0359-0434Z: weak AP splotches remaining -----> corrected 0439-0758Z: weak/moderate/intense AP remaining -----> much improved, but some problem vos's still exist where AP could not be removed without removing precip as well. See the following flags: 2B,3A !!FLAG!! ===> 0604-0609Z: weak/moderate/intense AP splotches remaining which could not be removed without removing precip as well. * AP RANGE: AP located ~80-130 km from radar 3A !!FLAG!! ===> 0633Z: moderate/intense AP splotch remaining. Moved vos to bad_files_not_in_1C.hdf directory. * AP RANGE: AP located ~90 km from radar 2A,3A !!FLAG!! ===> 0648-0758Z: moderate/intense AP remaining * AP RANGE: AP located ~50-150 km from radar 1138-1208Z: weak/moderate AP remaining -----> corrected 1220Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1316-1355Z: weak/moderate AP remaining (no precip present within range) -----> corrected ****************************************************************************************** 28 Nov 98: No precipitation on this day. Data processed: 0004-2357 Z Satellite Coincidence: 0933Z(258 km), 1109Z(532 km), 1423Z(431 km), 1559Z(440 km) QC notes: 1349-1408Z: scattered AP remaining (no precip present) -----> corrected ****************************************************************************************** 29 Nov 98: Only precipitation on this day comes in the form of some widely scattered light showers off the coast which are so weak, they are barely perceptible gy the radar. Data processed: 0007-2350 Z Satellite Coincidence: 0820Z(737 km), 0957Z(249 km), 1133Z(745 km), 1310Z(654 km) QC notes: 1402-1431Z: weak/moderate AP splotches remaining -----> corrected 1530-2054Z: removal of light precipitation -----> corrected 2340-2350Z; removal of light precipitation -----> corrected ****************************************************************************************** 30 Nov 98: A couple of weak showers off the coast slowly grows throughout the day to an appreciable area of moderate showers and/or weak convection off the east coast of Florida. Data processed: 0000-2358 Z Satellite Coincidence: 0844Z(129 km), 1021Z(597 km), 1334Z(345 km), 1511Z(584 km) QC notes: 0000-0158Z: removal of light precipitation -----> corrected 0336-1328Z: removal of light precipitation -----> corrected 1226Z: bad (incomplete) volume scan -----> corrected by moving vos to bad_files_not_in_1C.hdf directory 1313-1338Z: moderate AP splotch remaining near radar -----> corrected 1343-1413Z: scattered weak/moderate/intense AP splotches remaining W of radar -----> completely corrected except for one volume scan (see the following flag). Some very weak precip returns surrounding more intense rain cores were removed in the process but since the precip was so light and the main rain cores still remain, this is considered negligible. 1A !!FLAG!! ===> 1353Z: intense AP splotch remains which could not be removed without removing significant precip as well. * AP RANGE: AP located ~90 km from radar 1428-2358Z: removal of light precipitation -----> corrected ******************************************************************************************