Alert archive / Texas / Flash Flood Warnings in 2002
Flash Flood Warning 120, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 6, 2002, 3:52 PM CDT for DeWitt 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
- Jul 6, 2002, 3:52 PM CDT (20:52 UTC)
- Expired
- Jul 6, 2002, 6:00 PM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County DeWitt County, TX
The radar
The Austin/San Antonio radar (KEWX), 90 km from the middle of the area, began a volume at 20:55 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.
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
Corpus Christi, TX (KCRP), launched 12:00Z, 8.9 hours before the alert went out and 154 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
- 3181 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 561 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- 22 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 062052 FFWSAT TXC123-062300- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 355 PM CDT SAT JUL 6 2002 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES... DEWITT * UNTIL 600 PM CDT * AT 354 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN 5 MILES NORTH OF CUERO...MOVING LITTLE. DOPPLER RADAR ESTIMATES OF ONE AND A HALF TO 2 INCHES PER HOUR FROM THIS STORM. * THE THUNDERSTORM WITH EXCESSIVE RAINFALL WILL BE... RURAL DEWITT COUNTY AT 400 PM 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. 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 2907 9756 2895 9752 2915 9710 2933 9722
1 follow-up statement
000 WGUS74 KEWX 062118 FFSSAT TXC123-062315- FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 420 PM CDT SAT JUL 6 2002 ...FLASH FLOOD WARNING IN EFFECT FOR DEWITT COUNTY TIL 6 PM CDT... AT 420 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE VERY HEAVY RAINS OVER NORTH CENTRAL DEWITT COUNTY NORTH AND WEST OF CUERO. RAINFALL ESTIMATES OF ONE AND A HALF TO TWO INCHES PER HOUR IN THESE STORMS. RADAR SHOWED LITTLE IN THE WAY OF MOVEMENT. SECONDARY ROADS AND LOW WATER CROSSINGS WILL FLOOD THE NEXT FEW HOURS. MOTORISTS SHOULD NOT ENTER FLOODED LOW WATER CROSSINGS...THEY CAN BE FATAL. 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.
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 Jul 6, 3:11 PM CDT, 41 minutes earlier.
Area forecast discussion, Jul 6, 3:11 PM CDT, 41 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
300 CDT SAT JUL 06 2002
I
UPON FUTHER THOUGHT...IT APPEARS THAT BROKEN LINE OF THUNDERSTORMS
UP FROM COAST WILL NOT HAVE ENOUGH DYNAMICS TO SUSTAIN MUCH PAST
DARK. SO...WILL READJUST THINKING AND CONTINUE FLASH FLOOD WATCH
FOR TONIGHT FOR JUST NORTHWESTERN AREAS...GIVEN THE CHANCE FOR SOME
GOOD RAINS THERE WITH A VORT MAX AS DISPLAYED BY MESO-ETA MODEL.
HOPEFULLY...A DECREASE IN ACTIVITY SUNDAY THROUGH MONDAY. THEN MORE
SHOWERS MAINLY SE HALF TUESDAY. TEMPS CLOSE TO GUIDANCE.
PRELIMINARY NUMBERS...
AUS 072 092 071 092 3221
DRT 077 093 075 093 4321
SAT 075 092 075 092 3221
.EWX...FLASH FLOOD TONIGHT FOR THE HILL COUNTRY AND ADJACENT PARTS
OF EDWARDS PLATEAU.
3/2/KWThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 6:08 PM CDT | Flash Flood Warning | EWX | Bandera, Blanco, Burnet, Comal, Gillespie, Hays and 4 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.