Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 96, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 4, 2002, 2:11 AM CDT for Blanco 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 counties it named.
The facts
- Issued
- Jul 4, 2002, 2:11 AM CDT (07:11 UTC)
- Expired
- Jul 4, 2002, 6:15 AM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Blanco County, TX
The radar
The Austin/San Antonio radar (KEWX), 72 km from the middle of the area, began a volume at 07:11 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
Del Rio, TX (KDRT), launched 00:00Z, 7.2 hours before the alert went out and 256 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
- 53 J/kg
- Mixed-layer CIN
- -220 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -20 m²/s²
- 0-3 km storm-relative helicity
- 34 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 040711 FFWSAT TXC031-041115- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 210 AM CDT THU JUL 4 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... BLANCO * UNTIL 615 AM CDT * AT 210 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN SPREADING ACORSS THE COUNTY AT 25 MPH. ADDITIONAL HEAVY RAINS WILL MOVE INTO BLANCO COUNTY THROUGH 6 AM. 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
1 follow-up statement
000 WGUS74 KEWX 041045 FFSSAT TXC019-031-171-259-265-299-325-385-463-041230- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 545 AM CDT THU JUL 4 2002 ...A FLASH FLOOD WARNING FOR BLANCO COUNTY EXPIRES AT 615 AM CDT... ...A FLASH FLOOD WARNING CONTINUES FOR LLANO...GILLESPIE... KERR...KENDALL...REAL...BANDERA...MEDINA AND UVALDE COUNTIES UNTIL 12 NOON CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING VERY HEAVY RAINFALL FROM DIMMIT NORTH TO MEDINA AND CENTER POINT. MOVEMENT OF THE STORMS IS NORTH AT 10 MPH. THIS REMAINS A DANGEROUS SITUATION. 3 TO 4 INCHES AN HOUR RAINFALL FROM THESE STORMS HAVE CAUSED THE SABINAL RIVER NEAR SABINAL TO FLASH FLOOD THIS MORNING. OTHER RIVERS AND STREAMS OVER THE EASTERN HILL COUNTRY REMAIN IN FLOOD THIS MORNING. RUNOFF FROM THESE RAINS WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND STREAMS...LOW WATER CROSSINGS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING AREAS. RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS. 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. 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 |
|---|---|---|---|---|
| Jul 3, 7:06 PM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jul 3, 7:32 PM CDT | Flash Flood Warning | EWX | Atascosa | 118 min |
| Jul 3, 8:11 PM CDT | Flash Flood Warning | EWX | Kendall | 3 hr |
| Jul 3, 9:03 PM CDT | Flash Flood Warning | EWX | Frio | 3 hr |
| Jul 3, 9:25 PM CDT | Flash Flood Warning | EWX | Comal | 110 min |
| Jul 3, 9:59 PM CDT | Flash Flood Warning | EWX | Atascosa | 2 hr |
| Jul 3, 10:17 PM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jul 3, 11:06 PM CDT | Flash Flood Warning | EWX | Blanco, Gillespie, Kendall | 3 hr |
| Jul 3, 11:42 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio, Medina, Uvalde | 3 hr |
| Jul 4, 12:28 AM CDT | Flash Flood Warning | EWX | Bexar, Comal, Gillespie, Kendall | 4 hr |
| Jul 4, 2:40 AM CDT | Flash Flood Warning | EWX | Medina, Uvalde | 2 hr |
| Jul 4, 2:50 AM CDT | Flash Flood Warning | EWX | Real | 2 hr |
| Jul 4, 2:51 AM CDT | Flash Flood Warning | EWX | Llano | 2 hr |
| Jul 4, 3:04 AM CDT | Flash Flood Warning | EWX | Burnet | 116 min |
| Jul 4, 4:50 AM CDT | Flash Flood Warning | EWX | Bandera, Gillespie, Kendall, Kerr, Llano, Medina and 2 more | 7 hr |
| Jul 4, 6:51 AM CDT | Flash Flood Warning | EWX | Blanco | 5 hr |
| Jul 4, 7:32 AM CDT | Flash Flood Warning | EWX | Burnet | 4 hr |
| Jul 4, 7:52 AM CDT | Flash Flood Warning | EWX | Bexar | 4 hr |
| Jul 4, 9:29 AM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Jul 4, 11:40 AM CDT | Flash Flood Warning | EWX | Bandera, Bexar, Blanco, Burnet, Comal, Gillespie and 4 more | 4 hr |
| Jul 4, 2:18 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio | 102 min |
| Jul 4, 3:53 PM CDT | Flash Flood Warning | EWX | Atascosa, Bandera, Bexar, Blanco, Burnet, Comal and 8 more | 4 hr |
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.