MKC WW 181531
INZ000-182100-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 301
STORM PREDICTION CENTER NORMAN OK
1031 AM EST THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN AND CENTRAL INDIANA
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 1100 AM UNTIL
400 PM EST.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES WEST NORTHWEST OF LAFAYETTE INDIANA
TO 30 MILES SOUTHEAST OF FORT WAYNE INDIANA.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
DISCUSSION...RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS HAS OCCURRED
IN ECENTRAL IL WHERE AIRMASS MODERATELY UNSTABLE AND CAP IS WEAK.
WITH LOCAL VAD PROFILES AND MODELS INDICATING STRONG VEERING SHEAR
PROFILES...CONDITIONS ARE FAVORABLE FOR DEVELOPMENT OF TORNADIC
SUPERCELLS AS STORMS MOVE/DEVELOPMENT INTO INDIANA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 25035.
...HALES
;414,0873 414,0844 393,0844 392,0873;
NNNN
ZCZC MKCSEL2 ALL 182200;422,0942 413,0873 394,0873 403,0942;
WWUS9 KMKC 181553
MKC WW 181553
IAZ000-ILZ000-182200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 302
STORM PREDICTION CENTER NORMAN OK
1053 AM CDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN IOWA
NORTHERN AND CENTRAL ILLINOIS
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 1130 AM UNTIL
500 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 35 MILES WEST OF DES MOINES IOWA TO 30 MILES
NORTH OF DANVILLE ILLINOIS.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION... CONTINUE...WW 301...
DISCUSSION...RAPID DEVELOPMENT OF SEVERE THUNDERSTORMS OCCURING SRN
IA AHEAD OF SURFACE/UPPER LOW. AIRMASS VERY UNSTABLE EWD ACROSS
SERN IA INTO IL WITH CAPES AOA 3000 J/KG. E/W BOUNDARY ACROSS NRN
IL INTO IA WILL ENHANCE LOW LEVEL SHEAR PROFILES SUPPORTING
TORNADIC SUPERCELLS AS STORMS DEVELOP EWD FROM SRN IA.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 25040.
...HALES
;422,0942 413,0873 394,0873 403,0942;
NNNN
ZCZC MKCSEL3 ALL 190000;425,0832 395,0820 395,0843 425,0861;
WWUS9 KMKC 181758
MKC WW 181758
MIZ000-OHZ000-LEZ000-190000-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 303
STORM PREDICTION CENTER NORMAN OK
158 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHERN LOWER MICHIGAN
WESTERN AND CENTRAL OHIO
LAKE ERIE
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 230 PM UNTIL 800
PM EDT.
HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 15 MILES WEST NORTHWEST OF LANSING
MICHIGAN TO 25 MILES WEST SOUTHWEST OF COLUMBUS OHIO.
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.
OTHER WATCH INFORMATION... CONTINUE...WW 301...WW 302...
DISCUSSION...SEVERE THUNDERSTORMS ACROSS INDIANA AND MOVING ACROSS
SRN LM ATTM. WITH CONTINUED DESTABILIZING AIRMASS AND FAVORABLE
VEERING SHEAR PROFILES CONDITIONS FAVORABLE FOR PRIMARILY SEVERE
HAIL AND WINDS STORMS DEVELOPING EWD INTO WRN OH/SRN LWR MI NEXT 1-
2 HOURS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25035.
...HALES
;425,0832 395,0820 395,0843 425,0861;
NNNN
ZCZC MKCSEL4 ALL 190000;412,0733 395,0790 413,0790 430,0733;
WWUS9 KMKC 181853
MKC WW 181853
NJZ000-NYZ000-PAZ000-190000-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 304
STORM PREDICTION CENTER NORMAN OK
253 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EXTREME NORTHERN NEW JERSEY
SOUTHERN AND EASTERN NEW YORK
CENTRAL AND EASTERN PENNSYLVANIA
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 315 PM UNTIL 800
PM EDT.
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 ALONG AND 60 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTH SOUTHWEST OF DUBOIS
PENNSYLVANIA TO 35 MILES SOUTH SOUTHEAST OF ALBANY NEW YORK.
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.
OTHER WATCH INFORMATION... CONTINUE...WW 301...WW 302...WW 303...
DISCUSSION...LINE THUNDERSTORMS WRN NY INTO NWRN PA EXPECTED TO
INTENSIFY AS IT MOVES EWD INTO INCREASINGLY MOIST AND UNSTABLE
AIRMASS. STRONG SHEAR PROFILES SUPPORT DAMAGING WINDS BUT WITH
LINEAR NATURE OF STORMS...SUPERCELL THREAT SHOULD BE SMALL EXPECT
FOR STORMS WHICH MAY DEVELOP AHEAD OF LINE.
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 25040.
...HALES
;412,0733 395,0790 413,0790 430,0733;
NNNN
ZCZC MKCSEL5 ALL 190200;415,0880 363,0904 363,0931 415,0904;
WWUS9 KMKC 181922
MKC WW 181922
IAZ000-ILZ000-MOZ000-190200-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 305
STORM PREDICTION CENTER NORMAN OK
222 PM CDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
EASTERN IOWA
CENTRAL AND NORTHERN ILLINOIS
SOUTHERN AND EASTERN MISSOURI
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 300 PM UNTIL 900
PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 15 MILES SOUTH SOUTHWEST OF WEST PLAINS MISSOURI TO
50 MILES NORTHWEST OF MARSEILLES ILLINOIS.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 302. WATCH NUMBER 302 WILL NOT BE IN EFFECT AFTER 300 PM
CDT. CONTINUE...WW 301...WW 303...WW 304...
DISCUSSION...STORMS EXPECTED TO DEVELOP SWD ALONG THE DRY LINE INTO
ERN MO INTO AIRMASS THAT IS MODERATELY UNSTABLE WITH CAPES TO 3000
J/KG. WITH THE VAD AND PROFILERS INDICATING STRONG VEERING SHEAR
PROFILES...SUPERCELLS AND ISOLATED TORNADOES EXPECTED ALONG WITH
VERY LARGE HAIL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 25040.
...HALES
;415,0880 363,0904 363,0931 415,0904;
NNNN
ZCZC MKCSEL6 ALL 190300;363,0914 323,0955 323,0980 363,0935;
WWUS9 KMKC 181939
MKC WW 181939
ARZ000-OKZ000-TXZ000-190300-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 306
STORM PREDICTION CENTER NORMAN OK
239 PM CDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTH AND WEST ARKANSAS
EASTERN OKLAHOMA
NORTHCENTRAL TEXAS
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 315 PM UNTIL
1000 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF DALLAS TEXAS TO 25 MILES
NORTHEAST OF HARRISON ARKANSAS.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION... CONTINUE...WW 301...WW 302...WW
303...WW 304...WW 305...
DISCUSSION...STORMS BEGINNING TO DEVELOP ALONG THE DRY LINE FROM
NWRN AR SWWD TO SW OF FTW. AIRMASS E OF DRY LINE HAS BECOME VERY
UNSTABLE WITH CAPES AOA 3500 J/KG. DEEP LAYER SHEAR SUFFICIENT FOR
SUPERCELLS AND ISOLATED TORNADOES GIVEN AMOUNT OF INSTABILITY.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600.
MEAN STORM MOTION VECTOR 24030.
...HALES
;363,0914 323,0955 323,0980 363,0935;
NNNN
ZCZC MKCSEL7 ALL 190200;430,0711 411,0712 411,0733 430,0733;
WWUS9 KMKC 182014
MKC WW 182014
CTZ000-MAZ000-NHZ000-RIZ000-VTZ000-190200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 307
STORM PREDICTION CENTER NORMAN OK
414 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
CONNECTICUT
MASSACHUSETTS
SOUTHERN NEW HAMPSHIRE
RHODE ISLAND
SOUTHERN VERMONT
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 500 PM UNTIL
1000 PM EDT.
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 ALONG AND 55 STATUTE MILES
EAST AND WEST OF A LINE FROM 20 MILES WEST OF GROTON CONNECTICUT TO
20 MILES NORTH NORTHWEST OF KEENE NEW HAMPSHIRE.
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.
OTHER WATCH INFORMATION... CONTINUE...WW 301...WW 302...WW
303...WW 304...WW 305...WW 306...
DISCUSSION...INTENSE SQUALL LINE SRN NY/NRN PA WILL CONTINUE TO
MOVE RAPIDLY EWD INTO SRN NEW ENGLAND. SHEAR PROFILES REMAIN
STRONG AHEAD OF LINE WHICH SUPPORTS DAMAGING WIND THREAT EVEN AS
INSTABILITY GRADUALLY DECREASES EWD.
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 450. MEAN STORM
MOTION VECTOR 25040.
...HALES
;430,0711 411,0712 411,0733 430,0733;
NNNN
ZCZC MKCSEL8 ALL 190200;412,0710 403,0733 403,0761 412,0735;
WWUS9 KMKC 182142
MKC WW 182142
CTZ000-NJZ000-NYZ000-PAZ000-CWZ000-190200-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 308
STORM PREDICTION CENTER NORMAN OK
542 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
SOUTHWEST CONNECTICUT
NORTHERN NEW JERSEY
EXTREME SOUTHEASTERN NEW YORK
EASTERN PENNSYLVANIA
COASTAL WATERS
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 600 PM UNTIL
1000 PM EDT.
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 ALONG AND 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES EAST SOUTHEAST OF ALLENTOWN
PENNSYLVANIA TO 25 MILES WEST NORTHWEST OF GROTON CONNECTICUT.
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.
OTHER WATCH INFORMATION... CONTINUE...WW 302...WW 303...WW
304...WW 305...WW 306...WW 307...
DISCUSSION...DEEP...STRONG WSW FLOW WILL LIKELY MAINTAIN CELL
INITIATION ALONG SRN END OF SQLN IN NE PA/SE NY...SUGGESTING THREAT
FOR DAMAGING WINDS/HAIL ACROSS PARTS OF THE NYC AREA THIS EVENING.
SHALLOW ONSHORE FLOW AND DIURNAL COOLING SHOULD LIMIT THREAT OVER
ERN LONG ISLAND.
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 450. MEAN STORM
MOTION VECTOR 28045.
...CORFIDI
;412,0710 403,0733 403,0761 412,0735;
NNNN
ZCZC MKCSEL9 ALL 190400;413,0852 362,0900 362,0925 413,0882;
WWUS9 KMKC 182233
MKC WW 182233
ILZ000-INZ000-MOZ000-190400-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 309
STORM PREDICTION CENTER NORMAN OK
533 PM CDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
NORTHERN ILLINOIS
NORTHWEST INDIANA
EASTERN AND SOUTHERN MISSOURI
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 600 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 80 STATUTE MILES EAST AND WEST
OF A LINE FROM 25 MILES SOUTHEAST OF WEST PLAINS MISSOURI TO 80
MILES NORTH OF LAFAYETTE INDIANA.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 305. WATCH NUMBER 305 WILL NOT BE IN EFFECT AFTER 600 PM
CDT. CONTINUE...WW 303...WW 304...WW 306...WW 307...WW 308...
DISCUSSION...STRONG BOW COMPLEX WITH EMBEDDED SUPOERCELLS EXPECTED
TO SWEEP E ACROSS NRN IL INTO NRN IND THIS EVENING AS STORMS
CONTINUE TO DEVELOP IN FOCUSED LOW LEVEL CONVERGENCE ZONE BENEATH
AXIS OF 60-70 MID LEVEL WSWLY FLOW. FARTHER S...MORE ISOLATED
SEVERE STORMS...INCLUDING SUPERCELLS...LIKELY TO DEVELOP OVER THE
NEXT SEVERAL HOURS INVOF DRY LINE INTO SRN MO.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 26040.
...CORFIDI
;413,0852 362,0900 362,0925 413,0882;
NNNN
ZCZC MKCSEL0 ALL 190700;320,1011 344,0942 331,0942 303,1011;
WWUS9 KMKC 190119
MKC WW 190119
OKZ000-TXZ000-190700-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 310
STORM PREDICTION CENTER NORMAN OK
819 PM CDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EXTREME SOUTHERN OKLAHOMA
CENTRAL AND NORTHERN TEXAS
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 830 PM UNTIL
200 AM CDT.
HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 50 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF SAN ANGELO TEXAS TO
60 MILES EAST NORTHEAST OF PARIS TEXAS.
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.
OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
TORNADO WATCH NUMBER 306. WATCH NUMBER 306 WILL NOT BE IN EFFECT
AFTER 830 PM CDT. CONTINUE...WW 305...WW 307...WW 308...WW 309...
DISCUSSION...THUNDERSTORMS EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY ALONG SLOW-MOVING FRONT LATER THIS EVENING AS WARM
ADVECTION STRENGTHENS AHEAD OF SHORTWAVE APPROACHING FROM NM.
AMPLE ELEVATED SHEAR AND INSTABILITY WILL BE PRESENT TO SUPPORT
SOME STORM ROTATION WITH LARGE HAIL AND POSSIBLY LOCALLY DAMAGING
WINDS.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 24025.
...CORFIDI
;320,1011 344,0942 331,0942 303,1011;
NNNN
ZCZC MKCSEL1 ALL 190700;412,0825 393,0844 393,0872 412,0853;
WWUS9 KMKC 190149
MKC WW 190149
INZ000-OHZ000-190700-
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 311
STORM PREDICTION CENTER NORMAN OK
949 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL AND NORTHERN INDIANA
WESTERN OHIO
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1000 PM UNTIL
300 AM EDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE TORNADO WATCH AREA IS ALONG AND 70 STATUTE MILES EAST AND WEST
OF A LINE FROM 15 MILES SOUTHEAST OF INDIANAPOLIS INDIANA TO 40
MILES NORTHWEST OF FINDLAY OHIO.
REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.
OTHER WATCH INFORMATION... CONTINUE...WW 308...WW 309...WW 310...
DISCUSSION...SQLN WITH EMBEDDED LEWPS/BOWS AND SUPERCELLS EXPECTED
TO CONTINUE E ACROSS IND/OH LATER TONIGHT...WHERE GREATEST MOISTURE
INFLUX WILL OCCUR ALONG AXIS OF 50+ KT LOW LEVEL JET. STRENGTH OF
DEEP-LAYER SHEAR /ON THE ORDER OF 50 KTS/...COUPLED WITH EXISTING
AREAS OF LOW LEVEL STORM ROTATION SUGGEST CONTINUED THREAT FOR
ISOLATED TORNADOES...ESPECIALLY ALONG STALLED FRONT FROM N OF GUS
TO S OF FDY.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 50 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450.
MEAN STORM MOTION VECTOR 26040.
...CORFIDI
;412,0825 393,0844 393,0872 412,0853;
NNNN
ZCZC MKCSEL2 ALL 190900;412,0751 401,0761 401,0810 412,0800;
WWUS9 KMKC 190333
MKC WW 190333
PAZ000-190900-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 312
STORM PREDICTION CENTER NORMAN OK
1133 PM EDT THU MAY 18 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
WESTERN AND CENTRAL PENNSYLVANIA
EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1145 PM UNTIL
500 AM EDT.
HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO 60
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 125 STATUTE MILES
EAST AND WEST OF A LINE FROM 20 MILES WEST OF ALTOONA PENNSYLVANIA
TO 40 MILES WEST NORTHWEST OF WILLIAMSPORT PENNSYLVANIA.
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.
OTHER WATCH INFORMATION... CONTINUE...WW 309...WW 310...WW 311...
DISCUSSION...THREAT FOR DAMAGING WINDS AND MARGINALLY SEVERE HAIL
THROUGH EARLY FRIDAY AS WEAKLY-ORGANIZED THUNDERSTORM CLUSTERS
SPREAD RAPIDLY E IN ENVIRONMENT OF STRONG UNIDIRECTIONAL SHEAR /AOA
50 KTS/ ALONG STALLED FRONT.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50 KNOTS.
A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 400. MEAN STORM MOTION
VECTOR 27045.
...CORFIDI
;412,0751 401,0761 401,0810 412,0800;
NNNN
ZCZC MKCSEL3 ALL 191600;330,0933 331,0911 315,0911 315,0933;
WWUS9 KMKC 191038
MKC WW 191038
LAZ000-191600-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 313
STORM PREDICTION CENTER NORMAN OK
538 AM CDT FRI MAY 19 2000
THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
NORTHERN LOUISIANA
EFFECTIVE THIS FRIDAY MORNING FROM 600 AM UNTIL 1100 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 ALONG AND 45 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 90 MILES WEST OF MONROE LOUISIANA TO
50 MILES EAST OF MONROE LOUISIANA.
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.
DISCUSSION...BOW ECHO HAS DEVELOPED OVER NORTHWESTERN LA AHEAD OF
SURFACE BOUNDARY AND NEAR AXIS OF 2000 J/KG CAPE. 40 KT LOW LEVEL
JET WILL PROVIDE FAVORABLE SHEAR FOR CONTINUED WIND DAMAGE ACROSS
NORTHERN LA.
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27040.
...ROGASH
;330,0933 331,0911 315,0911 315,0933;
NNNN