Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 21, NWS Midland/Odessa, TX

August 25, 1998Reagan County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Aug 25, 1998, 9:39 AM CDT for Reagan County, Texas. It was in force for 3 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
Aug 25, 1998, 9:39 AM CDT (14:39 UTC)
Expired
Aug 25, 1998, 12:40 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties

County Reagan County, TX

The radar

The Midland/Odessa radar (KMAF), 90 km from the middle of the area, began a volume at 14:41 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

Midland Regional, TX (KMAF), launched 12:00Z, 2.7 hours before the alert went out and 91 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, Midland Regional, TX at 12:00Z on 1998-08-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 459 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, Midland Regional, TX at 12:00Z on 1998-08-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -29 square meters per square second.1939Sfc1 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
459 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
780 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-29 m²/s²
0-3 km storm-relative helicity
-4 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 251440
FFWMAF
TXC383-251740-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND TX
939 AM CDT TUE AUG 25 1998

THE NATIONAL WEATHER SERVICE IN MIDLAND HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  REAGAN COUNTY IN SOUTHWESTERN TEXAS

* UNTIL 1240 PM CDT

* AT 930 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED THAT A LARGE AREA OF HEAVY RAINFALL WAS LOCATED ACROSS
  EASTERN AND SOUTHERN REAGAN COUNTY...MOVING SLOWLY NORTH.

* EXCESSIVE RAINFALL AT THE RATE OF 1 TO 2 INCHES PER HOUR WILL
  PRODUCE FLOODING ACROSS SOUTHERN AND NORTHEAST REAGAN COUNTY
  THROUGH 1240 PM CDT.

  DON'T DRIVE ACROSS FLOODED ROADS! MOST FLASH FLOOD DEATHS OCCUR IN
  AUTOMO\BILES.

SD/EP


&

The office that day

Everything else NWS Midland/Odessa, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 25, 1:59 AM CDTFlash Flood WarningMAFPecos, Terrell4 hr
Aug 25, 5:55 AM CDTFlash Flood WarningMAFReagan3 hr
Aug 25, 9:18 AM CDTFlash Flood WarningMAFReagan3 hr
Aug 25, 10:58 AM CDTFlash Flood WarningMAFPecos3 hr
Aug 25, 12:34 PM CDTFlash Flood WarningMAFReagan116 min
Aug 25, 2:11 PM CDTFlash Flood WarningMAFPecos109 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; radar from the NEXRAD Level II archive.