Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 64, NWS Midland/Odessa, TX

June 19, 1999Andrews County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jun 19, 1999, 7:26 PM CDT for Andrews County, Texas. It was in force for 94 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 19, 1999, 7:26 PM CDT (00:26 UTC)
Expired
Jun 19, 1999, 9:00 PM CDT
In force
94 min
Issued by
NWS Midland/Odessa, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Andrews County, TX

The radar

The Midland/Odessa radar (KMAF), 58 km from the middle of the area, began a volume at 00:26 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 00:00Z, 0.4 hours before the alert went out and 57 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 00:00Z on 1999-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 105 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 00:00Z on 1999-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -52 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
105 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1951 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-52 m²/s²
0-3 km storm-relative helicity
-12 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 
TTAA00 KMAF 200027
FFWMAF
TXC003-200200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX
726 PM CDT SAT JUN 19 1999

THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ANDREWS COUNTY IN TEXAS

* UNTIL 900 PM CDT

* AT 725 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED A LINE OF 
  THUNDERSTORMS WITH VERY HEAVY RAIN ALONG A LINE EXTENDING FROM 4
  MILES NORTHWEST OF FLOREY TO 7 MILES WEST OF ANDREWS TO 8 MILES
  SOUTHEAST OF THE INTERSECTION OF SH 115 AND FM 181...MOVING EAST
  AT 20 MPH.

* SOME LOCATIONS AFFECTED BY THIS FLASH FLOOD WARNING INCLUDE...     
  FRANKEL CITY...FLOREY AND ANDREWS

THE GROUND IN THIS AREA IS ALREADY SATURATED FROM PREVIOUS RAINS. 
THIS ADDITIONAL RAINFALL WILL ONLY MAKE MATTERS WORSE.  AN ADDITIONAL
1 TO 3 INCHES OF RAIN CAN BE EXPECTED WITH THESE STORMS.

NEVER DRIVE INTO A FLOODED STRETCH OF ROAD. THE DEPTH OF WATER MAY BE
ENOUGH TO FLOAT YOUR VEHICLE.

TO REPORT FLOODING...HAVE THE NEAREST LAW ENFORCEMENT AGENCY RELAY
YOUR REPORT TO THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE.

LAT...LON 3252 10283 3209 10282 3209 10222 3252 10220
          3252 10262

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 Midland/Odessa, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 19, 6:00 PM CDT, 1 hour 26 minutes earlier.

Area forecast discussion, Jun 19, 6:00 PM CDT, 1 hour 26 minutes before
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MIDLAND TX
600 PM CDT SAT JUN 19 1999

JUST SENT UPDATED TEXAS ZONES TO RAISE POPS FOR THE PERMIAN BASIN
DUE TO INCREASING AREAL COVERAGE OF SHOWER ACTIVITY. OUTFLOW
BOUNDARIES ALL OVER THE PLACE...ALONG WITH WEAK STEERING CURRENT
SHOULD PRODUCE LOCALLY HEAVY RAINS REGIONWIDE INTO THE EVENING
HOURS. SATELLITE DERIVED PRODUCTS A LITTLE SPARSE THIS REGION FROM
CLOUD COVER...BUT CAN ASCER@TAIN AT LEAST AN INCH OF PRECIP WATER. THE
OTHER ZONES SHOULD HOLD FOR NOW.

RSB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:06 PM CDTFlash Flood WarningMAFEctor114 min
Jun 19, 8:58 PM CDTFlash Flood WarningMAFDawson, Martin2 hr
Jun 19, 9:35 PM CDTFlash Flood WarningMAFMidland2 hr
Jun 19, 10:07 PM CDTFlash Flood WarningMAFGlasscock3 hr
Jun 19, 10:57 PM CDTFlash Flood WarningMAFDawson, Martin2 hr
Jun 19, 11:12 PM CDTFlash Flood WarningMAFReagan, Upton108 min
Jun 20, 1:00 AM CDTFlash Flood WarningMAFReagan3 hr

Nearby

Flash Flood Warnings in Texas, 1999Every flash flood warning in 1999

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.