SPC WW 092033
NDZ000-SDZ000-100300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 694
NWS STORM PREDICTION CENTER NORMAN OK
330 PM CDT WED AUG 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTH CENTRAL NORTH DAKOTA
NORTH CENTRAL SOUTH DAKOTA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 330 PM UNTIL
1000 PM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 65
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES WEST
SOUTHWEST OF BISMARCK NORTH DAKOTA TO 65 MILES SOUTH OF JAMESTOWN
NORTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
DISCUSSION...AN AREA OF CUMULUS IS BUILDING AT A SURFACE TRIPLE
POINT NW OF BIS...AND MODIFIED FORECAST SOUNDINGS SUGGEST THAT
CONVECTIVE INHIBITION IS NOW MINIMAL THIS AREA WITH MLCAPE VALUES OF
1500-2000 J/KG. STORM COVERAGE MAY BE AIDED BY A WEAK MID LEVEL
TROUGH MOVING EWD OVER THE WRN DAKOTAS...AND STORMS ARE EXPECTED TO
SPREAD SEWD INTO N CENTRAL SD THIS EVENING. THE COMBINATION OF
STEEP LAPSE RATES AND DEEP LAYER SHEAR THAT INCREASES FROM N TO S
SHOULD BE SUFFICIENT FOR A FEW SUPERCELLS WITH LARGE HAIL AND
DAMAGING GUSTS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 31020.
...THOMPSON
WWUS20 KWNS 092100
SEL5
SPC WW 092100
NEZ000-100300-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 695
NWS STORM PREDICTION CENTER NORMAN OK
400 PM CDT WED AUG 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL NEBRASKA
EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 400 PM UNTIL
1000 PM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHWEST OF
ONEILL NEBRASKA TO 25 MILES EAST OF IMPERIAL NEBRASKA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 694...
DISCUSSION...CONVECTION ALONG SURFACE TROUGH IN CENTRAL NEB MAY
INCREASE IN COVERAGE THROUGH OUTFLOW/STORM INTERACTIONS THE NEXT FEW
HOURS. VERTICAL SHEAR IS SOMEWHAT MARGINAL THIS AREA...BUT STRONG
INSTABILITY WILL SUPPORT STORMS WITH ISOLATED LARGE HAIL AND
OCCASIONAL DAMAGING DOWNBURSTS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27020.
...THOMPSON
WWUS20 KWNS 092330
SEL6
SPC WW 092330
SDZ000-100500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 696
NWS STORM PREDICTION CENTER NORMAN OK
630 PM CDT WED AUG 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND SOUTHERN SOUTH DAKOTA
EFFECTIVE THIS WEDNESDAY NIGHT FROM 630 PM UNTIL MIDNIGHT CDT.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 70
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST
NORTHWEST OF PHILIP SOUTH DAKOTA TO 30 MILES EAST NORTHEAST OF
CHAMBERLAIN SOUTH DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH
SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 694...WW 695...
DISCUSSION...SCATTERED TSTMS/POSSIBLE WEAK SUPERCELLS WITH HIGH WIND
AND HAIL EXPECTED TO DEVELOP/PERSIST INVOF WEAK INVERTED TROUGH OVER
S CNTRL/SW SD...WHERE STEEP LOW LEVEL LAPSE RATES ARE PRESENT
BENEATH BELT OF MODERATE WLY FLOW ALOFT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
VECTOR 28025.
...CORFIDI
WWUS20 KWNS 100045
SEL7
SPC WW 100045
MNZ000-NDZ000-100500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 697
NWS STORM PREDICTION CENTER NORMAN OK
740 PM CDT WED AUG 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN MINNESOTA
EASTERN NORTH DAKOTA
EFFECTIVE THIS WEDNESDAY NIGHT FROM 740 PM UNTIL MIDNIGHT CDT.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85
STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH OF
FARGO NORTH DAKOTA TO 65 MILES SOUTH SOUTHWEST OF DETROIT LAKES
MINNESOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 694...WW 695...WW 696...
DISCUSSION...TSTMS EXPECTED TO MOVE/DEVELOP GENERALLY SE THROUGH MID
TO LATE EVENING WITHIN TRIANGULAR-SHAPED REGION OF SURFACE-BASED
INSTABILITY/WEAK LOW LEVEL CONVERGENCE EXTENDING SEWD FROM E CNTRL
ND. DEEP SHEAR...WHILE REMAINING MODEST...INCREASES WITH SWD
EXTENT...AND MAY SUPPORT A FEW SUSTAINED STRUCTURES/POSSIBLE
SUPERCELLS WITH HIGH WIND/HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
VECTOR 30020.
...CORFIDI
WWUS20 KWNS 100233
SEL8
SPC WW 100233
MNZ000-SDZ000-100700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 698
NWS STORM PREDICTION CENTER NORMAN OK
930 PM CDT WED AUG 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN MINNESOTA
NORTHERN AND EASTERN SOUTH DAKOTA
EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 930 PM
UNTIL 200 AM CDT.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF
ABERDEEN SOUTH DAKOTA TO 30 MILES SOUTHWEST OF WATERTOWN SOUTH
DAKOTA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 694. WATCH NUMBER 694 WILL NOT
BE IN EFFECT AFTER 930 PM CDT. CONTINUE...WW 695...WW 696...WW
697...
DISCUSSION...SUSTAINED STORMS/SUPERCELLS IN S CNTRL ND EXPECTED TO
MOVE/DEVELOP GENERALLY SSE THROUGH EARLY THURSDAY...WITH AN
ATTENDANT THREAT FOR WIND/HAIL. ACTIVITY MAY GROW INTO A SMALL MCS
WITH EMBEDDED BOWING SEGMENTS MAINTAINING A THREAT FOR LOCALLY
DAMAGING WIND/MARGINALLY SEVERE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION
VECTOR 33025.
...CORFIDI
WWUS20 KWNS 100457
SEL9
SPC WW 100457
NEZ000-101000-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 699
NWS STORM PREDICTION CENTER NORMAN OK
MIDNIGHT CDT ¼Pÿÿ 9 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN NEBRASKA
EFFECTIVE THIS WEDNESDAY MORNING FROM MIDNIGHT UNTIL 500 AM CDT.
HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95
STATUTE MILES EAST AND WEST OF A LINE FROM 5 MILES NORTHEAST OF
ONEILL NEBRASKA TO 10 MILES EAST SOUTHEAST OF GRAND ISLAND
NEBRASKA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 696...WW 697...WW 698...
DISCUSSION...A CLUSTER OF PULSE STORMS WITH THE POTENTIAL FOR HIGH
WIND EXPECTED TO PROPAGATE GENERALLY NE INTO VERY UNSTABLE OVER ERN
NEB /SBCAPE TO 4000 J PER KG/...WHERE MERGING OUTFLOW BOUNDARIES
FROM EXISTING CLUSTERS AND WEAK LOW LEVEL ELY FLOW EXPECTED TO
ASSIST LIFT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 25020.
...CORFIDI
WWUS20 KWNS 100733
SEL0
SPC WW 100733
IAZ000-NEZ000-101200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 700
NWS STORM PREDICTION CENTER NORMAN OK
235 AM CDT THU AUG 10 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN INTO CENTRAL IOWA
FAR NORTHEAST AND EAST CENTRAL NEBRASKA
EFFECTIVE THIS THURSDAY MORNING FROM 235 AM UNTIL 700 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTHWEST OF
STORM LAKE IOWA TO 55 MILES EAST SOUTHEAST OF OMAHA NEBRASKA.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU0).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 699...
DISCUSSION...CLUSTER OF INTENSE THUNDERSTORMS WILL CONTINUE ENEWD
ACROSS WW EARLY THIS MORNING WITH ATTENDANT THREAT OF DAMAGING
WINDS. AIR MASS IS VERY UNSTABLE AND SHOULD MAINTAIN INTENSE
UPDRAFTS AND SUBSEQUENT STRONG TO DAMAGING DOWNDRAFTS. HEAVY
RAINFALL AND LARGE HAIL WILL BE ADDITIONAL HAZARDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
MOTION VECTOR 26035.
...EVANS
WWUS20 KWNS 100835
SEL1
SPC WW 100835
IAZ000-ILZ000-101500-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 701
NWS STORM PREDICTION CENTER NORMAN OK
335 AM CDT THU AUG 10 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CENTRAL AND EASTERN IOWA
NORTHWESTERN ILLINOIS
EFFECTIVE THIS THURSDAY MORNING FROM 335 AM UNTIL 1000 AM CDT.
HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 55
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTH
NORTHWEST OF DES MOINES IOWA TO 55 MILES EAST NORTHEAST OF MOLINE
ILLINOIS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 699...WW 700...
DISCUSSION...THUNDERSTORMS EXPECTED TO CONTINUE DEVELOPING AND
MOVING GENERALLY EWD ACROSS WW THROUGH THE MORNING...PRIMARILY NORTH
OF SURFACE FRONT NOW EXTENDING E-W NEAR THE IA/MO BORDER. AIR MASS
IS VERY UNSTABLE ACROSS WW WITH MUCAPE FROM 3000-5000 J/KG.
EFFECTIVE SHEAR AROUND 40-45 KT WILL ALSO FAVOR ORGANIZATION INTO
LINES/SUPERCELLS WHICH WILL ENHANCE THE THREATS OF LARGE HAIL AND
DAMAGING WINDS. EVOLUTION INTO ONE OR TWO MCSS IS LIKELY THROUGH
THE EARLY TO MID MORNING.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
MOTION VECTOR 27030.
...EVANS
WWUS20 KWNS 101150
SEL2
SPC WW 101150
ILZ000-INZ000-101800-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 702
NWS STORM PREDICTION CENTER NORMAN OK
650 AM CDT THU AUG 10 2006
THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL ILLINOIS
WESTERN AND CENTRAL INDIANA
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 650 AM UNTIL
100 PM CDT.
HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 65 MILES NORTH
NORTHWEST OF PEORIA ILLINOIS TO 35 MILES NORTH NORTHEAST OF
INDIANAPOLIS INDIANA. FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).
REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.
OTHER WATCH INFORMATION...CONTINUE...WW 700...WW 701...
DISCUSSION...LINEAR MCS NOW MOVING ACROSS THE MS RIVER VALLEY INTO
NWRN IL IS EXPECTED TO CONTINUE ESEWD AND POSSIBLY ACCELERATE AS
MORNING HEATING DESTABILIZES AIR MASS ALONG STALLED SURFACE FRONT.
SHEAR IS QUITE STRONG AND AN ALREADY MODERATELY UNSTABLE AIR MASS
WILL FURTHER DESTABILIZE INTO THE EARLY AFTERNOON. DAMAGING WINDS
COULD BECOME QUITE STRONG/WIDESPREAD IF ACTIVITY DEVELOPS INTO A
LARGER BOW ECHO SYSTEM. ELEVATED SUPERCELLS MAY ALSO CONTINUE AHEAD
OF THIS MCS ALONG AND NORTH OF QUASI-STATIONARY SURFACE FRONT GIVEN
DEGREE OF SHEAR WITH ADDITIONAL HAZARD OF LARGE HAIL.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 29040.
...EVANS