Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 245, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 23, 2002, 3:25 AM CDT for Bexar County, Guadalupe County, Texas. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 23, 2002, 3:25 AM CDT (08:25 UTC)
- Expired
- Oct 23, 2002, 7:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
Counties Bexar County, TX, Guadalupe County, TX
The radar
The Austin/San Antonio radar (KEWX), 37 km from the middle of the area, began a volume at 08:24 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.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 8.4 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
- 2192 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 529 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WGUS54 KEWX 230825 FFWSAT TXC029-187-231215- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 325 AM CDT WED OCT 23 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... GUADALUPE BEXAR * UNTIL 715 AM CDT * AT 322 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN AND THUNDERSTORMS OVER EASTERN BEXAR COUNTY INTO GUADALUPE COUNTY...MOVING EAST AT 20 MPH. RAINFALL RATES OF UP TO 1 AND A HALF TO 2 INCHES PER HOUR WERE OCCURRING IN THESE STORMS. EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND. LAT...LON 2952 9856 2938 9842 2952 9794 2956 9817
3 follow-up statements
000 WGUS74 KEWX 230900 FFSSAT TXC029-187-231045- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 358 AM CDT WED OCT 23 2002 ...A FLASH FLOOD WARNING CONTINUES FOR GUADALUPE AND BEXAR COUNTIES UNTIL 715 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL FROM EASTERN BEXAR COUNTY EXTENDING INTO GUADALUPE COUNTY. RAINFALL RATES OF UP TO 1 AND A HALF INCHES PER HOUR WERE OCCURRING ACROSS EASTERN PORTIONS OF BEXAR AND GUADALUPE COUNTIES AS OF 355 AM. RAINFALL AMOUNTS AS OF 355 AM WERE 1.45 INCHES AT SAN ANTONIO INTERNATIONAL AIRPORT...STINSON AIRPORT WITH 2 INCHES EVEN AND DOWNTOWN SAN ANTONIO HAD 2.5 INCHES. THESE AMOUNTS HAD ALL FALLEN SINCE 1 AM. HIGH WATER RESCUES WERE ONGOING EARLY THIS MORNING ACROSS SOUTHERN BEXAR COUNTY...AT HIGHWAY 90 AT W T MONTGOMERY AND AT DONOP AND INTERSTATE 37. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
000 WGUS74 KEWX 231038 FFSSAT TXC029-187-231215- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 AM CDT WED OCT 23 2002 ...A FLASH FLOOD WARNING CONTINUES FOR GUADALUPE AND BEXAR COUNTIES UNTIL 715 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED LIGHT TO MODERATE RAINS MOVING EAST ACROSS GUADALUPE COUNTY. RAINS HAVE MOVED OUT OF BEXAR COUNTY HOWEVER HIGH WATER MAY STILL BE IMPACTING PORTIONS OF THE COUNTY. THE GUADALUPE COUNTY SHERIFFS DEPARTMENT REPORTED MANY LOW WATER CROSSINGS AND ROADS INUNDATED BY HIGH WATER...WITH ONE TO TWO FEET OF WATER FLOWING OVER FM ROAD 467 SOUTH OF SEGUIN. ALSO ALONG HIGHWAY 78 AT 1044 AND AT PIONEER...REPORTS OF WATER COVERING THE ROADWAYS. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. AND DO NOT DRIVE THROUGH BARRICADES. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
000 WGUS74 KEWX 231217 FFSSAT TXC029-187-231315- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 715 AM CDT WED OCT 23 2002 ...THE FLASH FLOOD WARNING FOR GUADALUPE AND BEXAR COUNTIES HAS EXPIRED... NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL WAS ENDING ACROSS THE WARNED AREA...AND THE FLOOD THREAT WAS DIMINISHING. SOME MINOR FLOODING MAY CONTINUE...BUT THE THREAT OF SERIOUS FLOODING HAS ENDED...AND THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. SOME LOW WATER CROSSINGS ACROSS GUADALUPE AND SOUTHERN BEXAR COUNTIES MAY STILL HAVE WATER FLOWING OVER THEM...SO BE CAREFUL WHEN APPROACHING AND DO NOT ATTEMPT TO GO THROUGH BARRICADES. DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 22, 9:19 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Oct 22, 11:11 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 64 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; radar from the NEXRAD Level II archive.