Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 23, NWS San Angelo, TX

June 13, 2002Irion County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 13, 2002, 9:11 PM CDT for Irion 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 13, 2002, 9:11 PM CDT (02:11 UTC)
Expired
Jun 13, 2002, 11:15 PM CDT
In force
2 hr
Issued by
NWS San Angelo, TX
Area
Counties, with a storm outline in the text

County Irion 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 00:00Z, 2.2 hours before the alert went out and 222 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 00:00Z on 2002-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1221 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2002-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1221 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
2292 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KSJT 140211
FFWSJT
TXC235-140415-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
910 PM CDT THU JUN 13 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  IRION COUNTY IN SOUTHWEST TEXAS

* UNTIL 1115 PM CDT

* AT 906 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
HEAVY   RAIN OCCURRING OVER MUCH OF IRION COUNTY INCLUDING THE TOWN 
OF MERTZON.  THE STORMS WERE MOVING SOUTHEAST AT 30 MPH.

* RAINFALL TOTALING UP TO AROUND 2 AND A HALF INCHES HAS FALLEN IN 
THE WARNED AREA...WITH ADDITIONAL RAINFALL UP TO ONE INCH EXPECTED 
THROUGH 1115 PM CDT

DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. THE WATER DEPTH
MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. DO NOT ATTEMPT TO
DRIVE AROUND BARRICADES. MOST FLASH FLOOD DEATHS OCCUR IN VEHICLES.

LAT...LON 3151 10111 3136 10122 3113 10114 3118 10077
          3149 10086

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 San Angelo, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 13, 8:11 PM CDT, 1 hour earlier.

Area forecast discussion, Jun 13, 8:11 PM CDT, 1 hour before
WEST CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN ANGELO TX
811 PM CDT THU JUN 13 2002

SENT ZONE UPDATE TO EXTEND THE SEVERE THUNDERSTORM WATCH FOR
PORTIONS OF WEST CENTRAL TEXAS UNTIL 10 PM. STRONG STORMS ARE
DEVELOPING IN THE BIG COUNTRY AND THE WESTERN CONCHO VALLEY. WITH
PLENTY OF OUTFLOW BOUNDARIES AND THE COLD FRONT CONTINUING TO PUSH
SOUTH INTO THE BIG COUNTRY...EXPECT SCATTERED SHOWERS AND
THUNDERSTORMS TO CONTINUE THROUGH MUCH OF THE NIGHT.

.SJT...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MUCH OF WEST
CENTRAL TEXAS.

24

In the hours before

Special weather statement, Jun 13, 7:49 PM CDT, 1 hour 22 minutes before
TXZ049-054-064>066-071>073-076>078-098-099-113-114-127-128-139-140-
154-155-168>170-140300-

WEST CENTRAL TEXAS HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN ANGELO TX
749 PM CDT THU JUN 13 2002

...THUNDERSTORM WATCH EXTENDED TONIGHT ACROSS NORTHERN AND CENTRAL
SECTIONS OF WEST CENTRAL TEXAS THROUGH 10 PM CDT...

THE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF WEST CENTRAL TEXAS
HAS BEEN EXTENDED THROUGH 10 PM CDT.

THE THUNDERSTORM WATCH IS IN EFFECT FOR THE FOLLOWING COUNTIES...

IN WEST CENTRAL TEXAS THIS WATCH INCLUDES 15 COUNTIES...

TXC049-059-083-253-307-417-441-140100-
IN NORTH CENTRAL TEXAS THIS WATCH INCLUDES 7 COUNTIES...

  BROWN           CALLAHAN        COLEMAN         JONES
  MCCULLOCH       SHACKELFORD     TAYLOR

TXC003-033-115-151-165-169-227-263-305-317-335-353-415-445-140100-IN
NORTHWEST TEXAS THIS WATCH INCLUDES 2 COUNTIES...

  FISHER   NOLAN

TXC081-095-103-135-173-235-301-329-383-399-431-451-461-475-495-140100
-
IN SOUTHWEST TEXAS THIS WATCH INCLUDES 6 COUNTIES...

  COKE            CONCHO         IRION       RUNNELS
  STERLING        TOM GREEN

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 13, 7:34 PM CDTTornado WarningSJTJones41 min
Jun 13, 7:46 PM CDTTornado WarningSJTTaylor59 min
Jun 13, 7:56 PM CDTSevere Thunderstorm WarningSJTHaskell54 min
Jun 13, 8:08 PM CDTSevere Thunderstorm WarningSJTIrion, Sterling, Tom Green52 min
Jun 13, 8:39 PM CDTSevere Thunderstorm WarningSJTCrockett71 min
Jun 13, 8:45 PM CDTSevere Thunderstorm WarningSJTTaylor30 min
Jun 13, 8:52 PM CDTSevere Thunderstorm WarningSJTRunnels83 min
Jun 13, 9:02 PM CDTSevere Thunderstorm WarningSJTIrion, Tom Green58 min
Jun 13, 9:15 PM CDTSevere Thunderstorm WarningSJTShackelford55 min
Jun 13, 9:17 PM CDTSevere Thunderstorm WarningSJTSchleicher58 min
Jun 13, 9:27 PM CDTSevere Thunderstorm WarningSJTHaskell63 min
Jun 13, 9:48 PM CDTSevere Thunderstorm WarningSJTCrockett, Sutton57 min
Jun 13, 9:58 PM CDTSevere Thunderstorm WarningSJTShackelford12 min
Jun 13, 10:02 PM CDTSevere Thunderstorm WarningSJTTom Green58 min
Jun 13, 10:42 PM CDTSevere Thunderstorm WarningSJTJones63 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.