Tornado Watch
TORNADO WATCH OUTLINE UPDATE FOR WT 201
NWS STORM PREDICTION CENTER NORMAN OK
1025 AM CDT TUE MAY 21 2013
TORNADO WATCH 201 IS IN EFFECT UNTIL 700 PM CDT FOR THE
FOLLOWING LOCATIONS
TXC001-009-023-027-035-049-059-077-083-085-093-095-097-099-113-
119-121-133-139-143-145-147-161-181-193-207-213-217-221-223-231-
237-251-253-257-267-277-281-289-293-307-309-319-327-331-333-337-
349-363-367-379-395-397-399-411-417-425-429-439-441-447-467-497-
503-220000-
/O.NEW.KWNS.TO.A.0201.130521T1525Z-130522T0000Z/
TX
. TEXAS COUNTIES INCLUDED ARE
ANDERSON ARCHER BAYLOR
BELL BOSQUE BROWN
CALLAHAN CLAY COLEMAN
COLLIN COMANCHE CONCHO
COOKE CORYELL DALLAS
DELTA DENTON EASTLAND
ELLIS ERATH FALLS
FANNIN FREESTONE GRAYSON
HAMILTON HASKELL HENDERSON
HILL HOOD HOPKINS
HUNT JACK JOHNSON
JONES KAUFMAN KIMBLE
LAMAR LAMPASAS LEON
LIMESTONE MASON MCCULLOCH
MCLENNAN MENARD MILAM
MILLS MONTAGUE NAVARRO
PALO PINTO PARKER RAINS
ROBERTSON ROCKWALL RUNNELS
SAN SABA SHACKELFORD SOMERVELL
STEPHENS TARRANT TAYLOR
THROCKMORTON VAN ZANDT WISE
YOUNG
$$
ATTN...WFO...OUN...FWD...SJT...TSA...
Special Weather Statement
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1142 AM CDT TUE MAY 21 2013
TXZ171>173-183>194-202>209-217>225-228-211845-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
INCLUDING THE CITIES OF...LLANO...BURNET...GEORGETOWN...DEL RIO...
ROCKSPRINGS...LEAKEY...KERRVILLE...BANDERA...FREDERICKSBURG...
BOERNE...BLANCO...SAN MARCOS...AUSTIN...BASTROP...GIDDINGS...
BRACKETTVILLE...UVALDE...HONDO...SAN ANTONIO...NEW BRAUNFELS...
SEGUIN...LOCKHART...LA GRANGE...EAGLE PASS...CRYSTAL CITY...
PEARSALL...PLEASANTON...FLORESVILLE...KARNES CITY...GONZALES...
CUERO...HALLETTSVILLE...CARRIZO SPRINGS
1142 AM CDT TUE MAY 21 2013
...EXTREMELY UNSTABLE AIRMASS POISED TO ERUPT IN SEVERE THUNDERSTORMS
WITH LARGE HAIL AND DAMAGING WINDS BY LATE AFTERNOON THROUGH THIS
EVENING...
RICH LOW LEVEL GULF MOISTURE COUPLED WITH DAYTIME HEATING AND
COLD AIR ALOFT WILL RESULT IN AN EXTREMELY UNSTABLE AIR MASS
ACROSS SOUTH CENTRAL TEXAS FROM LATE THIS MORNING THROUGH EARLY
EVENING. THUNDERSTORM DEVELOPMENT IS EXPECTED BEGINNING BY EARLY
THIS AFTERNOON AS AN AN UPPER LEVEL TROUGH AND COLD FRONT APPROACH
FROM THE WEST. SCATTERED THUNDERSTORMS WILL DEVELOP RAPIDLY BY
LATE AFTERNOON...QUICKLY BECOMING SEVERE AS THE FRONT ENCOUNTERS
THIS UNSTABLE AIR MASS. THE MAIN THREATS WILL BE FROM LARGE HAIL
AND DAMAGING THUNDERSTORM WINDS...HOWEVER WITH THE EXTREME
INSTABILITY PRESENT...ISOLATED TORNADOES CANNOT BE RULED OUT. MUCH
OF THE EASTERN HALF OF SOUTH CENTRAL TEXAS...MAINLY EAST OF A
KERRVILLE TO CARRIZO SPRINGS LINE...WILL BE AFFECTED FROM LATE
AFTERNOON UNTIL THE EARLY MORNING HOURS WEDNESDAY. IN
ADDITION...RAINFALL AMOUNTS MAY AVERAGE 1 TO 3 INCHES WITHIN THE
HEAVIEST STORMS PRODUCING SOME LOCALIZED FLOODING.
HEIGHTENED CONCERN EXISTS ALONG AND NORTH OF A BURNET TO AUSTIN TO
GIDDINGS LINE THIS EVENING...WHERE THE MOST UNSTABLE CONDITIONS WILL
RESIDE. THIS AREA WILL BE MOST AT RISK FOR VERY LARGE HAIL AND
ISOLATED TORNADOES.
THE WEATHER SYSTEM SHOULD EXIT THE REGION BY EARLY WEDNESDAY
MORNING...WITH HEAVY RAINS AND SEVERE WEATHER CONCERNS MOVING EAST
OF THE REGION.
LISTEN TO NOAA WEATHER RADIO OR YOUR LOCAL MEDIA FOR LATER UPDATES
ON THIS SEVERE WEATHER EVENT. ALSO...GO TO WEATHER.GOV/AUSTIN FOR
THE LATEST INFORMATION...FORECASTS AND WARNINGS.
$$
Hazardous Weather Outlook
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CORPUS CHRISTI TX
1038 AM CDT TUE MAY 21 2013
GMZ230-235-250-255-270-275-TXZ229>234-239>247-221545-
BAYS AND WATERWAYS FROM BAFFIN BAY TO PORT ARANSAS-
BAYS AND WATERWAYS FROM PORT ARANSAS TO PORT O`CONNOR-
COASTAL WATERS FROM BAFFIN BAY TO PORT ARANSAS OUT 20 NM-
COASTAL WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL OUT
20 NM-WATERS FROM BAFFIN BAY TO PORT ARANSAS FROM 20 TO 60 NM-
WATERS FROM PORT ARANSAS TO MATAGORDA SHIP CHANNEL FROM 20 TO
60 NM-LA SALLE-MCMULLEN-LIVE OAK-BEE-GOLIAD-VICTORIA-WEBB-DUVAL-
JIM WELLS-KLEBERG-NUECES-SAN PATRICIO-ARANSAS-REFUGIO-CALHOUN-
1038 AM CDT TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH TEXAS AND THE MIDDLE
TEXAS COASTAL WATERS.
.DAY ONE...TODAY AND TONIGHT
THERE IS A MODERATE RISK OF RIP CURRENTS.
ISOLATED TO SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP THIS
EVENING ACROSS THE WESTERN BRUSH COUNTRY...WITH STORMS TO THEN
MOVE EAST OVERNIGHT ACROSS THE VICTORIA CROSSROADS WEDNESDAY
MORNING. A FEW STORMS MAY BECOME STRONG WITH SMALL HAIL AND GUSTY
WINDS UP TO 40 MPH...ESPECIALLY ACROSS THE RIO GRANDE PLAINS AND
THE NORTHWESTERN BRUSH COUNTRY.
A SMALL CRAFT ADVISORY IS IN EFFECT FOR THE BAYS AND WATERWAYS
SOUTH OF PORT ARANSAS TODAY.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
THERE IS A MODERATE RISK OF RIP CURRENTS ON WEDNESDAY. OTHERWISE...NO
HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS NOT ANTICIPATED.
$$
CB/TE/TB
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
500 AM CDT TUE MAY 21 2013
GMZ330-335-350-355-370-375-TXZ214-235>238-221000-
BRAZORIA-CHAMBERS-GALVESTON-GALVESTON BAY-JACKSON-MATAGORDA-
MATAGORDA BAY-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL 20 NM TO 60 NM-
WATERS FROM FREEPORT TO THE MATAGORDA SHIP CHANNEL OUT 20 NM-
WATERS FROM HIGH ISLAND TO FREEPORT 20 TO 60 NM-
WATERS FROM HIGH ISLAND TO FREEPORT OUT 20 NM-
500 AM CDT TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.
.DAY ONE...TODAY AND TONIGHT
THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER THE HILL COUNTRY THIS
AFTERNOON AND MOVE EAST THIS EVENING INTO SOUTHEAST TEXAS. STRONG
THUNDERSTORMS WILL BE POSSIBLE TONIGHT ACROSS THE AREA MAINLY
AFTER 8 PM AND THROUGH 3 AM. GUSTY WINDS IN EXCESS OF 40 MPH WILL
BE POSSIBLE.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS WILL BE POSSIBLE
WEDNESDAY THEN AN UPPER LEVEL RIDGE OF HIGH PRESSURE WILL EXPAND
OVER THE REGION LEADING TO DRIER AND HOTTER WEATHER.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MIGHT BE NEEDED TONIGHT.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
500 AM CDT TUE MAY 21 2013
TXZ163-164-176>179-195>200-210>213-226-227-221000-
AUSTIN-BRAZOS-BURLESON-COLORADO-FORT BEND-GRIMES-HARRIS-HOUSTON-
LIBERTY-MADISON-MONTGOMERY-POLK-SAN JACINTO-TRINITY-WALKER-WALLER-
WASHINGTON-WHARTON-
500 AM CDT TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF SOUTHEAST TEXAS.
.DAY ONE...TODAY AND TONIGHT
A SLIGHT TO MODERATE RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON
AND TONIGHT. THE MODERATE RISK AREA IS FOR AREAS GENERALLY JUST
NORTH OF A COLLEGE STATION TO CROCKETT LINE. THUNDERSTORMS ARE
EXPECTED TO DEVELOP IN A VERY UNSTABLE ATMOSPHERE OVER THE HILL
COUNTRY THIS AFTERNOON AND MOVE EAST THIS EVENING INTO SOUTHEAST
TEXAS. THE MAIN THREAT OF SEVERE WEATHER WILL BE DAMAGING WINDS
WITH A LESSER THREAT OF HAIL AND POSSIBLY ISOLATED TORNADOES. THE
STORMS SHOULD BE MOVING INTO THE COLLEGE STATION AND CROCKETT
AREAS CLOSE TO 6 PM AND THEN MOVING EAST SOUTHEAST THROUGH THE
REMAINING OVERNIGHT HOURS. AS THE STORMS MOVE EAST THIS EVENING
THE ATMOSPHERE SHOULD BEGIN TO STABILIZE AND THUNDERSTORMS SHOULD
WEAKEN AS THE MOVE INTO THE CONROE TO LIVINGSTON AREAS.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
SLOW MOVING THUNDERSTORMS WITH HEAVY DOWNPOURS MAY BE POSSIBLE FOR
AREAS MAINLY SOUTH OF THE INTERSTATE 10 CORRIDOR. AN UPPER LEVEL
RIDGE OF HIGH PRESSURE WILL EXPAND OVER THE REGION THURSDAY
THROUGH SUNDAY LEADING TO DRIER AND HOTTER WEATHER.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE REQUIRED LATE THIS AFTERNOON AND
OVERNIGHT.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
411 AM CDT TUE MAY 21 2013
TXZ171>173-183>194-202>209-217>225-228-221200-
LLANO-BURNET-WILLIAMSON-VAL VERDE-EDWARDS-REAL-KERR-BANDERA-
GILLESPIE-KENDALL-BLANCO-HAYS-TRAVIS-BASTROP-LEE-KINNEY-UVALDE-
MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-FAYETTE-MAVERICK-ZAVALA-
FRIO-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-DIMMIT-
411 AM CDT TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS.
.DAY ONE...TODAY AND TONIGHT...
THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS EAST OF A LINE
FROM LAMPASAS TO ROUND ROCK TO THORNDALE. THERE IS A SLIGHT RISK
OF SEVERE THUNDERSTORMS NORTH AND EAST OF A LINE FROM COTULLA TO
CONCAN TO PLEASANTON TO HALLETTSVILLE. THIS INCLUDES THE SAN
ANTONIO AND AUSTIN METRO AREAS. THE PRIMARY SEVERE THREATS ARE FOR
LARGE HAIL AND DAMAGING WINDS...WITH A SECONDARY THREAT FOR
ISOLATED TORNADOES. LOCALLY HEAVY DOWNPOURS OF 1 TO 3 INCHES WILL
ALSO BE POSSIBLE.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED LATE THIS AFTERNOON INTO TONIGHT.
$$
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE FORT WORTH TX
303 AM CDT TUE MAY 21 2013
TXZ091>095-100>107-115>123-129>135-141>148-156>162-174-175-220815-
MONTAGUE-COOKE-GRAYSON-FANNIN-LAMAR-YOUNG-JACK-WISE-DENTON-COLLIN-
HUNT-DELTA-HOPKINS-STEPHENS-PALO PINTO-PARKER-TARRANT-DALLAS-
ROCKWALL-KAUFMAN-VAN ZANDT-RAINS-EASTLAND-ERATH-HOOD-SOMERVELL-
JOHNSON-ELLIS-HENDERSON-COMANCHE-MILLS-HAMILTON-BOSQUE-HILL-NAVARRO-
FREESTONE-ANDERSON-LAMPASAS-CORYELL-BELL-MCLENNAN-FALLS-LIMESTONE-
LEON-MILAM-ROBERTSON-
303 AM CDT TUE MAY 21 2013
THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH TEXAS.
.DAY ONE...TODAY AND TONIGHT.
THERE IS A MODERATE RISK OF SEVERE WEATHER ACROSS THE EASTERN
THREE QUARTERS OF NORTH TEXAS...AND A SLIGHT RISK OF SEVERE
WEATHER ACROSS THE REST OF THE AREA. A COLD FRONT IS EXPECTED TO
MOVE SOUTHEAST ACROSS NORTH TEXAS WITH THUNDERSTORMS BEGINNING
NEAR THE RED RIVER IN THE MORNING...SPREADING SOUTH AND EAST
AHEAD OF THE FRONT DURING THE DAY.
THE MAIN THREATS WILL BE FREQUENT LIGHTNING...HAIL LARGER THAN
TWO INCHES IN DIAMETER...AND DAMAGING WINDS. THE TORNADO THREAT
WILL INCREASE DURING THE DAY...WITH STRONG LONG TRACK TORNADOES A
POSSIBILITY. BY MID AFTERNOON THE STORMS ARE EXPECTED TO EVOLVE
INTO A SQUALL LINE...INCREASING THE DAMAGING STRAIGHT LINE WIND
POTENTIAL. THE SQUALL LINE SHOULD EXIT THE SOUTHEASTERN COUNTIES
BY LATE EVENING.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.
A SLIGHT CHANCE OF THUNDERSTORMS RETURNS WEDNESDAY EVENING IN THE
NORTHWEST AND THURSDAY NIGHT INTO FRIDAY MORNING GENERALLY NORTH OF
THE I-20 CORRIDOR.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION IS LIKELY BEGINNING IN THE MORNING FOR COUNTIES
NEAR THE RED RIVER...EXTENDING SOUTH AND EAST ACROSS NORTH TEXAS
DURING THE DAY AND EVENING.
$$
Short Term Forecast
SHORT TERM FORECAST
NATIONAL WEATHER SERVICE SHREVEPORT LA
1220 PM CDT TUE MAY 21 2013
ARZ072-073-LAZ001>006-010>014-017>022-TXZ124>126-136>138-149>153-
165>167-211930-
COLUMBIA-UNION AR-CADDO-BOSSIER-WEBSTER-CLAIBORNE-LINCOLN-
UNION LA-DE SOTO-RED RIVER-BIENVILLE-JACKSON-OUACHITA-SABINE LA-
NATCHITOCHES-WINN-GRANT-CALDWELL-LA SALLE-WOOD-UPSHUR-MARION-
SMITH-GREGG-HARRISON-CHEROKEE-RUSK-PANOLA-NACOGDOCHES-SHELBY-
ANGELINA-SAN AUGUSTINE-SABINE TX-
INCLUDING THE CITIES OF...MAGNOLIA...EL DORADO...SHREVEPORT...
BOSSIER CITY...MINDEN...HOMER...RUSTON...FARMERVILLE...
MANSFIELD...COUSHATTA...BIENVILLE...JONESBORO...MONROE...MANY...
NATCHITOCHES...WINNFIELD...COLFAX...COLUMBIA...JENA...QUITMAN...
GILMER...JEFFERSON...TYLER...LONGVIEW...MARSHALL...RUSK...
HENDERSON...CARTHAGE...NACOGDOCHES...CENTER...LUFKIN...
SAN AUGUSTINE...HEMPHILL
1220 PM CDT TUE MAY 21 2013
.NOW...
ISOLATED SHOWERS AND THUNDERSTORMS WILL DEVELOP THROUGH THE
AFTERNOON HOURS...IN DEEP EAST TEXAS...NORTH LOUISIANA...AND SOUTH
ARKANSAS. MOVEMENT IS TO THE NORTHEAST. STRONGER STORMS COULD
PRODUCE GUSTY WINDS AND BRIEF HEAVY RAINFALL.
$$
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