Alert archive / Texas / Severe Thunderstorm Warnings in 2003
Severe Thunderstorm Warning 37, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 8, 2003, 1:52 AM CDT for Dimmit County, Texas. It was in force for 53 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2003, 1:52 AM CDT (06:52 UTC)
- Expired
- Apr 8, 2003, 2:45 AM CDT
- In force
- 53 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Dimmit County, TX
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 7, 9:45 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 6.9 hours before the alert went out and 130 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
- 1447 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1863 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- -35 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.7
The text
As transmitted, in the capitals the NWS used until 2016.
572 WUUS54 KEWX 080652 SVRSAT TXC127-080745- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 152 AM CDT TUE APR 8 2003 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... DIMMIT * UNTIL 245 AM CDT * AT 152 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF CARRIZO SPRINGS...OR ABOUT 13 MILES EAST OF EL INDIO...MOVING SOUTHEAST AT 20 MPH. * THIS WARNING INCLUDES LOCATIONS IN AND AROUND... CARRIZO SPRINGS SEVERE THUNDERSTORMS CAN 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. VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A SUBSTANTIAL SHELTER. LAT...LON 2863 10010 2839 10010 2826 9983 2850 9969 $$
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 Apr 7, 9:30 PM CDT, 4 hours 22 minutes earlier.
Area forecast discussion, Apr 7, 9:30 PM CDT, 4 hours 22 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 930 PM CDT MON APR 7 2003 CURRENT WEATHER ANALYSIS...TRENDS AND OUTLOOK... SURFACE ANALYSIS HAS COLD FRONT MOVING SLOWLY SOUTHWARD ACROSS THE HILL COUNTRY INTO THE EXTREME EASTERN COUNTIES OF SOUTH CENTRAL TEXAS NEAR AUSTIN. THUNDERSTORM ACTIVITY DEVELOPING AHEAD OF THE FRONT. LOOK FOR THE THUNDERSTORMS ACTIVITY TO CONTINUE THROUGH THE NIGHT. CURRENT THUNDERSTORM WATCH WILL EXPIRE AT 10 PM. A NEW WATCH WILL BE ISSUED FOR THE SOUTH AND SOUTHWESTERN COUNTIES AND EXTEND TO 3 AM. THE FORECAST IS GOOD FOR TONIGHT AND WILL BE UPDATED ONLY TO CHANGE THE WATCH ZONE GROUPINGS. PREVIOUS DISCUSSION... THUNDERSTORMS TRYING TO DEVELOP OVER EXTREME SE ZONES SPARKED BY SURFACE TROUGH NEAR COAST. HOLDING TO THE GOING SCENARIO WITH SEVERE POSSIBLE THROUGH THE EVENING. EXPECT SEVERE THREAT TO END WITH FRONT STARTING TO MOVE IN AROUND MIDNIGHT AND SWEEPING THROUGH OVERNIGHT. SOME ELEVATED CONVECTION AND OVERRUNNING RAIN IN STORE FOR THE LATE NIGHT HOURS THROUGH TUESDAY MORNING WITH CLEARING TO FOLLOW TUESDAY AFTERNOON. WINDS WILL PICK UP RAPIDLY WITH FRONT AND BY MORNING ZONE TIME SHOULD BE CLOSE TO WIND ADVISORY CRITERIA. WILL GO WITH CAUTION ON AREA LAKES AFTER MIDNIGHT WITH LATER SHIFTS NEEDING TO ISSUE WIND ADVISORY FOR TUESDAY MORNING. WINDS SHOULD EASE DURING THE AFTERNOON. NOT LOOKING FOR THIS SYSTEM TO BE A MAJOR RAIN PRODUCER...ALTHOUGH A FEW SLOW MOVING CELLS WILL PRODUCE LOCALLY HEAVY AMOUNTS. QUITE CHILLY TUESDAY NIGHT AND AGAIN WEDNESDAY NIGHT. SLOW WARMING LATE WEEK WITH DRY WEATHER PREVAILING WITH STRONG UPPER RIDGE. GULF REOPENS EARLY NEXT WEEK WITH CLOUDS INCREASING MONDAY. .EWX...NONE.
Hazardous weather outlook, Apr 7, 5:00 PM CDT, 8 hours 52 minutes before
TXZ171>173-183>194-202>209-217>225-228-081100- HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 PM CDT MON APR 7 2003 THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTH CENTRAL TEXAS. .DAY ONE... LATE THIS AFTERNOON THROUGH TONIGHT...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS ACROSS ALL OF SOUTH CENTRAL TEXAS. AN UPPER-LEVEL STORM SYSTEM AND ASSOCIATED COLD FRONT WILL MOVE SOUTHEAST ACROSS SOUTH CENTRAL TEXAS LATE THIS AFTERNOON THROUGH TONIGHT. THE FRONT WILL INTERACT WITH ABUNDANT LOW LEVEL MOISTURE TO PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS MOVING SLOWLY EAST AND SOUTHEAST ACROSS THE AREA. WITH MODERATE SHEAR AND INSTABILITY...THE PRIMARY WEATHER THREATS WILL BE FOR LARGE HAIL...DAMAGING WINDS...ISOLATED TORNADOES...AND LOCALLY HEAVY RAINFALL AMOUNTS UP TO TWO INCHES. THE STORMS WILL LIKELY BEGIN OVER THE HILL COUNTRY LATE THIS AFTERNOON WITH THE FOCUS SHIFTING SOUTH OF SOUTH CENTRAL TEXAS SHORTLY AFTER MIDNIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. .DAYS TWO THROUGH SEVEN... NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 7, 8:38 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Kinney | 52 min |
| Apr 7, 11:23 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 52 min |
| Apr 7, 11:25 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 50 min |
| Apr 7, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 26 min |
| Apr 8, 12:19 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 56 min |
| Apr 8, 1:16 AM CDT | Severe Thunderstorm Warning | EWX | Maverick, Zavala | 59 min |
| Apr 8, 2:47 AM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 28 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2003Every severe thunderstorm warning in 2003
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.