Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 21, NWS San Angelo, TX

June 12, 1998Brown County, Coleman County, Texas

NWS San Angelo, TX issued this flash flood warning at Jun 12, 1998, 7:42 PM CDT for Brown County, Coleman 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 counties it named.

The facts

Issued
Jun 12, 1998, 7:42 PM CDT (00:42 UTC)
Expired
Jun 12, 1998, 9:45 PM CDT
In force
2 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

Counties Brown County, TX, Coleman County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.7 hours before the alert went out and 217 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, Fort Worth, TX at 00:00Z on 1998-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3579 joules per kilogram.LCLEL10008507005003002001001 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, Fort Worth, TX at 00:00Z on 1998-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 square meters per square second.1939587897Sfc1 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
3579 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1733 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.3
Supercell composite
9.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSJT 130042
FFWSJT
TXC049-083-130245-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
742 PM CDT FRI JUN 12 1998

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN BROWN COUNTY IN NORTH CENTRAL TEXAS
  SOUTHERN COLEMAN COUNTY IN NORTH CENTRAL TEXAS

* UNTIL 945 PM CDT

* AT 737 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR
  ESTIMATED RAINFALL OF 3 TO 4 INCHES OVER SOUTHERN BROWN
  AND SOUTHERN COLEMAN COUNTIES. AN ADDITIONAL INCH TO INCH AND A
  HALF OF RAIN IS EXPECTED OVER SOUTHERN BROWN COUNTY THROUGH 840 PM.

DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD!

07/14

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 7:27 PM CDTSevere Thunderstorm WarningSJTColeman48 min
Jun 12, 7:37 PM CDTSevere Thunderstorm WarningSJTBrown63 min
Jun 12, 8:00 PM CDTSevere Thunderstorm WarningSJTCallahan, Shackelford50 min
Jun 12, 8:10 PM CDTSevere Thunderstorm WarningSJTMcCulloch, San Saba50 min
Jun 12, 8:26 PM CDTTornado WarningSJTShackelford49 min
Jun 12, 8:45 PM CDTSevere Thunderstorm WarningSJTHaskell65 min
Jun 12, 9:03 PM CDTSevere Thunderstorm WarningSJTColeman47 min
Jun 12, 9:44 PM CDTSevere Thunderstorm WarningSJTJones, Shackelford51 min
Jun 12, 9:50 PM CDTTornado WarningSJTJones, Shackelford50 min
Jun 12, 10:29 PM CDTSevere Thunderstorm WarningSJTRunnels, Taylor61 min
Jun 12, 11:30 PM CDTSevere Thunderstorm WarningSJTCallahan60 min

Nearby

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.