Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 11, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 19, 2002, 7:30 PM CST for Atascosa County, Frio County, Texas. It was in force for 60 min. 2 reports came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 19, 2002, 7:30 PM CST (01:30 UTC)
- Expired
- Mar 19, 2002, 8:30 PM CST
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Atascosa County, TX, Frio County, TX
The radar
The Austin/San Antonio radar (KEWX), 119 km from the middle of the area, began a volume at 01:31 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 19, 7:30 PM CST | Hail 1.75 | Pearsall, TX | |
| Mar 19, 7:50 PM CST | Thunderstorm Wind | Lytle, TX | Severe winds in the Lytle area damaged or destroyed three mobile homes, while blowing over trees, limbs, road signs, and damaging roofs in the area. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 19, 3:30 PM CST | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 1.5 hours before the alert went out and 193 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 932 J/kg
- Mixed-layer CIN
- -500 J/kg
- Mixed-layer LCL
- 1142 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 130 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 200130 SVRSAT TXC013-163-200230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 729 PM CST TUE MAR 19 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... ATASCOSA FRIO * UNTIL 830 PM CST * AT 729 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER PEARSALL MOVING EAST AT 45 MPH. * THE SEVERE THUNDERSTORM WILL MOVE INTO ATASCOSA COUNTY AROUND 745 PM. LARGE HAIL AND WINDS OVER 60 MPH CAN BE EXPECTED. A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 19, 4:22 PM CST, 3 hours 8 minutes earlier.
Area forecast discussion, Mar 19, 4:22 PM CST, 3 hours 8 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 345 PM CST TUE MAR 19 2002 ALTHOUGH SPRING OFFICIALLY BEGINS TOMARROW MARCH 20TH THIS YEAR AT 116 PM CST...STORMY SPRINGLIKE WEATHER HAS ALL READY STARTED OVER WESTERN PART OF S CNTRL TX AND IS EXPECTED TO CONT TO DEVELOP EASTWARD IN THE NEXT FEW HOURS...AND CONTINUE TO AFFECT THE AREA TONIGHT. LINGERING RAIN MAY CONTINUE JUST AFTER SUNRISE WEDNESDAY MORNING. UPPER-LEVEL LOW FCST TO TRACK ACROSS AND TO THE NORTH OF S CNTL TX TONIGHT THROUGH EARLY WED. STRONG LIFT AND INSTABILITY WITH THIS MID TO LATE MARCH 2002 SYSTEM BODES VERY WELL FOR RAIN AND ALSO THE POSSIBLITY OF STORMY CONDITIONS AND LOCALLY HEAVY RAIN. THE UPPER-LEVEL LOWS PATH AND EVOLUTION OF THIS EVENT WITH ITS ASSOCIATED PACIFIC FRONT IS SIMILIAR TO THE RAIN EVENTS OF THE FALL 2001...ALTHOUGH THE INGREDIANTS THAT COME TOGETHER LATER TODAY AND TONIGHT WILL REFLECT A UNIQUENESS IN CHAOS TO MARCH 19 AND EARLY MARCH 20...2002. DRYLINE VCNTY DRT WITH COOLER PACIFIC AIR WEST OF DRT...THEN TO THE NORTH COMING ACORSS THE TX PANHANDLE AND NM IS MODIFIED CONTINENTAL COOL AIR MOVING SOUTH. ACROSS S CNTL TX CONTINUED SELY WINDS HAVE PUMPED ENOUGH LOW LVL MSTR INTO LOW PRES SYS TO THE WEST AND SFC WINDS HAVE CONTINUED TO BE MORE ISOLOBARIC INTO THE LOW TO THE WEST. ALL INGREDIANTS THAT FAVOR VERY GOOD CHANCE OF RAIN LATER TODAY AND TONIGHT CONTINUE...WITH RISK OF STORMY WEATHER. WL CONT TO REFLECT THESE TRENDS IN FORECASTS. AS FOR WEDNESDAY...EXPECT DECREASING CLOUDS AND MORE SUNSHINE AND FOR THURSDAY A CLEAR DAY. BY FRIDAY A SURGE OF COOL AIR FROM THE NORTHEAST AFFECTS AREA FOLLOWED BY RETURN FLOW PATTERN ON SATURDAY...CAUSING INCREASING CLOUDS. ANOTHER PSBL RAIN MAKING S/W TROF PASSES OVER AREA SUNDAY IN A PATTERN SIMILIAR TO SUNDAY MARCH 10TH...AND POSSIBLY ON MONDAY MARCH 25TH. WILL SHOW SLIGHT CHC OF RAIN SUN AND MON. ON TUESDAY...LARGER SCALE SYSTEM APPROACHING FROM THE WEST SHOWS BETTER CHANCE OF RAIN AND SHOWERS. MEDIUM RANGE DATA FOR NEXT WEEK HAS DIVERGED SOME FROM EARLIER SOLUTIONS...THAT TRIED TO SHOW COOLER AIR SPILLING ACROSS AREA NEXT WEEK. THIS COULD STILL HAPPEN...HOWEVER STORMY NATURE OF WESTERLIES MAY CUTOFF SOME OF THE COOL AIRS MOVEMENT SOUTH...AND BRING CHANCE OF RAIN TO AREA SOMETIME NEXT WEEK. WILL CONT TO LOOK FOR A TREND...HOWEVER STORMY CHAOS OF EARLY SPRING WESTERLIES WILL CONTINUE TO MAKE FOR TRENDLESS PATTERNS. IN THE MEANTIME A RAIN EVENT AND STORMY AT TIMES LATER TODAY AND TONIGHT...FOLLOWED BY MORE SUNSHINE WEDNESDAY...AND NEAR 12 HOURS OF SUNSHINE THURSDAY OR CLOSE TO 100 PERCENT OF POSSIBLE. THANKS FOR COORD WITH NWS FTW...CRP AND SPC TODAY. PRELIMINARY NUMBERS... AUS NU 054/066 040/070 041 08+30 DRT BU 052/075 044/077 045 08800 SAT NU 056/070 044/073 044 08+10= .EWX...TORNADO WATCH UNTIL 900 PM CST FOR ALL OF SOUTH CENTRAL TEXAS...EXCEPT LEE...FAYETTE...LAVACA...GONZALES...DEWITT AND KARNES COUNTIES. NOAA/NWS AUSTIN/SAN ANTONIO
In the hours before
Local storm report, Mar 19, 2:25 PM CST, 5 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
225 PM CST TUE MAR 19 2002
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0202 PM PANDALE 4 S TX 1.00 INCH HAIL
03/19/02 VAL VERDE
0204 PM PANDALE TX 1.00 INCH HAIL
03/19/02 VAL VERDE
WRSpecial weather statement, Mar 19, 3:00 PM CST, 4 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-192300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 300 PM CST TUE MAR 19 2002 ...A SEVERE THUNDERSTORMS WATCH IS IN EFFECT UNTIL 6PM THIS EVENING FOR PORTIONS OF THE HILL COUNTRY AND RIO GRANDE PLAINS REGION... THE NATIONAL WEATHER SERVICE FORECAST FOR THIS AFTERNOON AND TONIGHT HAS A GOOD CHANCE OF THUNDERSTORMS...SOME SEVERE WITH LARGE HAIL AND DAMAGING WINDS. A SEVERE THUNDERSTORMS WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES...BANDERA...EDWARDS...GILLESPIE...KERR...KINNEY...LLANO... MAVERICK...REAL...UVALDE...VAL VERDE. THIS INCLUDES THE CITIES OF...BANDERA...BRACKETTVILLE...DEL RIO... EAGLE PASS...FREDERICKSBURG...KERRVILLE...LEAKEY...LLANO... ROCKSPRINGS...UVALDE AN APPROACHING UPPER-LEVEL TROUGH OF LOW PRESSURE...COUPLED WITH ABUNDANT LOW-LEVEL MOISTURE...WILL TRIGGER SCATTERED THUNDERSTORMS THAT WILL CONTINUE THROUGH THE NIGHT. SOME OF THE STORMS COULD BECOME SEVERE...ESPECIALLY ACROSS THE HILL COUNTRY AND ADJACENT AREAS OF SOUTH CENTRAL TEXAS...WITH LARGE HAIL...DAMAGING WINDS...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL OCCURRING. ALTHOUGH THE MAIN FOCUS FOR SEVERE WEATHER WILL BE TO THE NORTH OF SOUTH CENTRAL TEXAS...SPOTTER NETWORKS MAY NEED TO BE ACTIVATED IF CONDITIONS WARRANT. A COLD FRONT WILL PUSH INTO AND THROUGH THE REGION THIS EVENING... WITH COOLER AND DRIER AIR SPREADING OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS WEDNESDAY. FOR INFORMATION ON WEATHER THREATS IN SURROUNDING AREAS...PLEASE REFER TO OUTLOOKS FROM OFFICES IN MIDLAND/ODESSA...SAN ANGELO... FORT WORTH...HOUSTON/GALVESTON AND CORPUS CHRISTI.
Special weather statement, Mar 19, 4:00 PM CST, 3 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-200000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 400 PM CST TUE MAR 19 2002 ...A TORNADO WATCH IS IN EFFECT UNTIL 9PM THIS EVENING FOR ALL OF THE TEXAS HILL COUNTRY AND MOST OF SOUTH CENTRAL TEXAS... THE NATIONAL WEATHER SERVICE FORECAST FOR TONIGHT HAS A GOOD CHANCE OF THUNDERSTORMS...SOME SEVERE WITH TORNADOS...LARGE HAIL AND DAMAGING WINDS. A TORNADO WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES... ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL... COMAL...DIMMIT...EDWARDS...FRIO...GILLESPIE...GUADALUPE...HAYS... KENDALL...KERR...KINNEY...LLANO...MAVERICK...MEDINA...REAL... TRAVIS...UVALDE...VAL VERDE...WILLIAMSON...WILSON...ZAVALA. THIS INCLUDES THE CITIES OF...AUSTIN...BANDERA...BASTROP... BOERNE...BRACKETTVILLE...BURNET...CARRIZO SPRINGS...CRYSTAL CITY... DEL RIO...EAGLE PASS...FLORESVILLE...FREDERICKSBURG...GEORGETOWN... HONDO...JOHNSON CITY...JOURDANTON...KERRVILLE...LEAKEY...LLANO... LOCKHART...NEW BRAUNFELS...PEARSALL...ROCKSPRINGS...SAN ANTONIO...SAN MARCOS...SEGUIN...UVALDE AN APPROACHING UPPER-LEVEL TROUGH OF LOW PRESSURE...COUPLED WITH ABUNDANT LOW-LEVEL MOISTURE...WILL TRIGGER SCATTERED THUNDERSTORMS THAT WILL CONTINUE THROUGH THE NIGHT. SOME OF THE STORMS ARE EXPECTED TO BECOME SEVERE...ESPECIALLY ACROSS THE HILL COUNTRY AND ADJACENT AREAS OF SOUTH CENTRAL TEXAS...TORNADOES...LARGE HAIL... DAMAGING WINDS...FREQUENT LIGHTNING AND LOCALLY HEAVY RAINFALL OCCURRING. SPOTTER NETWORKS MAY NEED TO BE ACTIVATED. A COLD FRONT WILL PUSH INTO AND THROUGH THE REGION THIS EVENING... WITH COOLER AND DRIER AIR SPREADING OVER THE HILL COUNTRY AND SOUTH CENTRAL TEXAS WEDNESDAY. FOR INFORMATION ON WEATHER THREATS IN SURROUNDING AREAS...PLEASE REFER TO OUTLOOKS FROM OFFICES IN MIDLAND/ODESSA...SAN ANGELO... FORT WORTH...HOUSTON/GALVESTON AND CORPUS CHRISTI.
Local storm report, Mar 19, 7:27 PM CST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
727 PM CST TUE MAR 19 2002
TIME(CST) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0659 PM HONDO TX 80 MPH TSTM WIND GUST
03/19/02 MEDINA
0707 PM HONDO TX 2.75 INCH HAIL
03/19/02 MEDINA REPORTED BY CO-OP OBSERVER
DCThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 19, 6:08 PM CST | Severe Thunderstorm Warning | EWX | Uvalde | 52 min |
| Mar 19, 6:18 PM CST | Severe Thunderstorm Warning | EWX | Zavala | 42 min |
| Mar 19, 6:23 PM CST | Severe Thunderstorm Warning | EWX | Burnet | 52 min |
| Mar 19, 6:25 PM CST | Tornado Warning | EWX | Frio, Zavala | 35 min |
| Mar 19, 6:39 PM CST | Tornado Warning | EWX | Medina, Uvalde | 51 min |
| Mar 19, 7:03 PM CST | Tornado Warning | EWX | Bexar | 57 min |
| Mar 19, 7:51 PM CST | Tornado Warning | EWX | Bexar, Guadalupe, Wilson | 54 min |
| Mar 19, 7:58 PM CST | Tornado Warning | EWX | Dimmit, Maverick | 62 min |
| Mar 19, 8:05 PM CST | Severe Thunderstorm Warning | EWX | Comal | 25 min |
| Mar 19, 8:14 PM CST | Severe Thunderstorm Warning | EWX | Hays | 61 min |
| Mar 19, 8:20 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 55 min |
| Mar 19, 8:33 PM CST | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Travis | 57 min |
| Mar 19, 9:00 PM CST | Severe Thunderstorm Warning | EWX | Dimmit | 60 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.