Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 197, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 7, 2002, 11:09 AM CDT for Bexar County, Texas. It was in force for 111 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
- Sep 7, 2002, 11:09 AM CDT (16:09 UTC)
- Expired
- Sep 7, 2002, 1:00 PM CDT
- In force
- 111 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Bexar County, TX
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood 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 nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 4.2 hours before the alert went out and 219 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
- 257 J/kg
- Mixed-layer CIN
- -61 J/kg
- Mixed-layer LCL
- 1332 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 25 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 071609 FFWSAT TXC029-071800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1105 AM CDT SAT SEP 7 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... BEXAR * UNTIL 100 PM CDT * AT 1105 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN CONTINUING ACROSS SAN ANTONIO AND BEXAR COUNTY. MOVEMENT IS WEST AT 15 TO 20 MPH. RAINFALL RATES ARE ESTIMATED AT 1 TO 2 INCHES AN HOUR ACROSS CENTRAL AND SOUTHERN BEXAR COUNTY. PARTS OF THE COUNTY HAVE ALREADY RECEIVED 2 TO 3 INCHES...BASED ON DOPPLER RADAR ESTIMATES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. LAT...LON 2931 9878 2916 9842 2946 9816 2971 9877
1 follow-up statement
000 WGUS74 KEWX 071803 FFSSAT TXC029-071900- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 102 PM CDT SAT SEP 7 2002 ...THE FLASH FLOOD WARNING FOR BEXAR COUNTY HAS EXPIRED... ...FLASH FLOOD WATCH IN EFFECT THROUGH TONIGHT... NATIONAL WEATHER SERVICE RADAR INDICATED THE HEAVY RAINFALL WAS MOVING WESTWARD AND ENDING ACROSS BEXAR COUNTY. LIGHT RAIN WILL CONTINUE FOR THE NEXT 30 MINUTES TO AN HOUR BUT THE FLOOD THREAT HAS DIMINISHED. SOME MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS ENDED AND THE FLASH FLOOD WARNING HAS EXPIRED. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
What forecasters said that day
The local office's own words before this flash flood 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 flash flood warning went out at Sep 7, 2:45 AM CDT, 8 hours 24 minutes earlier.
Area forecast discussion, Sep 7, 2:45 AM CDT, 8 hours 24 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 245 AM CDT SEP SEP 7 2002 ANALYSIS... ITS STILL ALL ABOUT FAY. IN THE PAST 24HRS...FAYS LOW LEVEL CENTER HAS DRIFTED WWD...AS NOTED BY THE SHIFT OF BUOY19 WINDS FROM NE TO SW...AND GREATEST LOW LEVEL PRESSURE FALLS IN THE SWRN GULF. ALSO... FAY HAS MOVED FROM UNDER THE H2 ANTICYCLONE AND CLOSER TO THE UPPER CYCLONIC SHEAR ALONG THE TX COAST. THIS COULD HALT FURTHER DEEPENING AND LOWER CHANCES OF A CORE RAIN SAT NITE. FAYS NWWD TRACK HAS BEEN SLOWED BY A STRONG MID LEVEL RIDGE OVER CENTRAL TX. STILL...PRECIP HAS BEGUN AND FAYS RAIN SHIELD IS SPREADING NWD INTO OUR SERN CWA. THE MODELS... AVN AND ETA DRIVE FAY WNWWD THRU TONITE...THEN STALL IT OVER SC TX SUN INTO TUE...WITH THE AVN A BIT FASTER ON SPEED THAN THE ETA. AS WITH THE FRI RUNS...THE DEEPEST MOISTURE AND HEAVIEST RAIN REMAIN TO THE N AND E OF FAYS TRACK...AS IS THE CASE CURRENTLY. FORECAST TODAY... INCREASING RAIN CHANCES ALL AREAS TODAY. POPS ARE HIGHEST OVER THE COASTAL PLAINS...DECREASING WWD. A FLASH FLOOD WATCH WILL CONTINUE ALONG AND EAST OF I35 THRU TODAY...AND WILL LIKELY BE EXPANDED IN TIME AND AREA LATER THIS AFTN. EVEN WITHOUT A CORE RAIN...WE COULD EASILY SEE 6 TO 8 INCH TOTALS FROM THE TROPICAL DOWNPOURS. HIGHS TODAY WILL RANGE FROM 80S EAST TO 90S WEST. FORECAST FOR SUNDAY AND MONDAY... A CONTINUED THREAT OF HEAVY RAIN INTO MON...AREAWIDE. ANOTHER 6 TO 8 INCHES OF RAIN ARE POSSIBLE...WITH THE LOCATIONS DEPENDING ON FAYS TRACK. RAIN AND CLOUDS WILL HOLD TEMPS IN THE 80S. FORECAST FOR TUESDAY... RAIN CHANCES LOWER SLOWLY...WITH CLOUDS DECREASING AS WELL. HIGHS AT MOST LOCATIONS BACK NEAR 90 BY WED...IN THE 90S THU. LOWS IN THE 70S. PRELIMS... AUS 088/070 086/069 086 87856 DRT 092/072 088/070 088 23443 SAT 088/072 087/070 086 87856 .EWX...FF WATCH ALONG AND EAST OF I35 THRU TODAY. 09/02/DC
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 6, 7:10 PM CDT | Tornado Warning | EWX | Gonzales | 35 min |
| Sep 7, 1:24 PM CDT | Flash Flood Warning | EWX | Medina | 3 hr |
| Sep 7, 2:44 PM CDT | Flash Flood Warning | EWX | Bandera | 3 hr |
| Sep 7, 4:10 PM CDT | Flash Flood Warning | EWX | Medina, Uvalde | 3 hr |
| Sep 7, 5:47 PM CDT | Flash Flood Warning | EWX | Bandera | 118 min |
Nearby
Flash Flood Warnings in Texas, 2002Every flash flood 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; the sounding from the Mesonet's radiosonde archive.