Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 31, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 30, 2002, 10:43 AM CDT for Blanco County, Texas. It was in force for 2 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
- Jun 30, 2002, 10:43 AM CDT (15:43 UTC)
- Expired
- Jun 30, 2002, 1:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Blanco County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 3.7 hours before the alert went out and 249 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
- 792 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 625 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 34 m²/s²
- 0-3 km storm-relative helicity
- 82 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
954
WGUS54 KEWX 301543
FFWSAT
TXC031-301800-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1040 AM CDT SUN JUN 30 2002
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE
* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
BLANCO
* UNTIL 100 PM CDT
* AT 1040 AM...WEATHER SERVICE DOPPLER RADAR INDICATED HEAVY
RAIN 10 MILES NORTHEAST OF JOHNSON CITY...OR ABOUT 12 MILES
SOUTH OF MARBLE FALLS...MOVING NORTHEAST AT 20 MPH. THE HEAVY
RAINS ARE BEGINNING TO DIMINISH ACROSS THE COUNTY...HOWEVER
RUNOFF WILL STILL POSE A FLASH FLOOD THREAT FOR THE NEXT 3 HOURS.
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 3015 9861 2999 9841 3005 9833 3044 9816
3047 9855
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 4:08 AM CDT | Flash Flood Warning | EWX | Guadalupe | 3 hr |
| Jun 30, 6:18 AM CDT | Flash Flood Warning | EWX | Bandera | 3 hr |
| Jun 30, 6:46 AM CDT | Flash Flood Warning | EWX | Blanco, Comal, Hays | 4 hr |
| Jun 30, 7:02 AM CDT | Flash Flood Warning | EWX | Guadalupe | 4 hr |
| Jun 30, 7:21 AM CDT | Flash Flood Warning | EWX | Lavaca | 4 hr |
| Jun 30, 7:46 AM CDT | Flash Flood Warning | EWX | Bastrop, Travis, Williamson | 4 hr |
| Jun 30, 8:08 AM CDT | Flash Flood Warning | EWX | Kendall | 4 hr |
| Jun 30, 8:46 AM CDT | Flash Flood Warning | EWX | Bexar | 3 hr |
| Jun 30, 9:29 AM CDT | Flash Flood Warning | EWX | Burnet | 4 hr |
| Jun 30, 9:49 AM CDT | Flash Flood Warning | EWX | Gillespie | 3 hr |
| Jun 30, 10:24 AM CDT | Flash Flood Warning | EWX | Kerr | 3 hr |
| Jun 30, 11:24 AM CDT | Flash Flood Warning | EWX | Kendall | 3 hr |
| Jun 30, 12:52 PM CDT | Flash Flood Warning | EWX | Bandera, Blanco, Burnet, Gillespie, Kendall, Kerr and 1 more | 3 hr |
| Jun 30, 1:43 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Comal, Guadalupe, Hays, Wilson | 3 hr |
| Jun 30, 3:42 PM CDT | Flash Flood Warning | EWX | Blanco, Burnet, Kendall | 2 hr |
| Jun 30, 4:54 PM CDT | Flash Flood Warning | EWX | Blanco, Comal, Gillespie, Hays, Kendall, Kerr | 3 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.