ZCZC SPCSWODY1 ALL ACUS01 KWNS 100024 SPC AC 100024 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0624 PM CST TUE DEC 09 2003 VALID 100100Z - 101200Z GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 40 WSW 7R4 20 NW HEZ 25 SSE PBF 55 NW LIT 40 S JLN 15 ESE EMP P35 35 ENE MSN 30 E APN ...CONT... 45 WNW CLE 40 NE SDF 35 WNW CHA AUO 35 S TLH. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 10 S 4BK 25 NW RBL 25 S SCK 10 SSE MRY. ...NO SVR TSTM AREAS FORECAST... ...LOWER MS VALLEY / CENTRAL GULF COAST REGION... LINE OF SHOWERS / THUNDERSTORMS AHEAD OF COLD FRONT CONTINUES TO WEAKEN AS IT ENCOUNTERS MORE STABLE AIRMASS NEAR AND EAST OF THE MS RIVER VALLEY. ISOLATED LIGHTNING STRIKES WILL LIKELY PERSIST ALONG THIS LINE THROUGH THE NIGHT...PARTICULARLY NEAR THE GULF COAST...GIVEN STRONG LOW-LEVEL CONVERGENCE ALONG PRE-FRONTAL TROUGH AND DEGREE OF DIFFLUENCE / DIVERGENCE ALOFT. HOWEVER...MEAGER INSTABILITY SUGGESTS ONLY A MINIMAL SEVERE THREAT AT BEST DESPITE FAVORABLE DEEP-LAYER WIND FIELD. ...COASTAL NRN CA... STEEPENING LAPSE RATES AHEAD OF APPROACHING UPPER LOW MAY YIELD MINIMAL INSTABILITY...SUFFICIENT TO ALLOW CONVECTION NOW OFF THE NRN CA COAST TO MOVE INLAND THIS EVENING / OVERNIGHT...PRIMARILY FROM THE SAN FRANCISCO BAY REGION NWD. ..GOSS.. 12/10/2003 ...NOTICE... FOR USERS DECODING THE POINTS PARAGRAPH HEREIN...LATITUDE AND LONGITUDE POINTS FOR THE CATEGORICAL AND PROBABILISTIC OUTLOOK GRAPHICS ALSO ARE LOCATED IN A SEPARATE PRODUCT UNDER THE WMO HEADINGS WUUS01 PTSDY1...WUUS02 PTSDY2...AND WUUS03 PTSDY3. THE INCLUSION OF POINTS IN THIS PRODUCT WILL EVENTUALLY BE DISCONTINUED. $$ |