Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 63, NWS Midland/Odessa, TX

June 19, 1999Pecos County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jun 19, 1999, 6:29 PM CDT for Pecos 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 outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Jun 19, 1999, 6:29 PM CDT (23:29 UTC)
Expired
Jun 19, 1999, 9:30 PM CDT
In force
3 hr
Issued by
NWS Midland/Odessa, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Pecos County, TX

The radar

The Midland/Odessa radar (KMAF), 181 km from the middle of the area, began a volume at 23:33 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, 11.5 hours before the alert went out and 182 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 1999-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 877 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 1999-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
877 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
85 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 192329
FFWMAF
TXC371-200230-

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

THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN PECOS COUNTY IN TEXAS

* UNTIL 930 PM CDT

* AT 629 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM WITH VERY HEAVY RAIN 11 MILES NORTH OF LONGFELLOW...
  MOVING NORTHEAST AT 10 MPH. 

* SOME LOCATIONS AFFECTED BY THIS FLASH FLOOD WARNING INCLUDE...   
  LONGFELLOW

RADAR INDICATES THAT BETWEEN 3 AND 4 INCHES OF RAIN HAS FALLEN FROM 
10 TO 15 MILES NORTH OF LONGFELLOW.  AN ADDITIONAL 2 TO 3 INCHES OF 
RAINFALL IS POSSIBLE IN THIS AREA.

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 3032 10295 3007 10258 3029 10257 3029 10240
          3059 10240 3067 10272

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, 29 minutes earlier.

Area forecast discussion, Jun 19, 6:00 PM CDT, 29 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 18, 8:29 PM CDTSevere Thunderstorm WarningMAFWard46 min
Jun 19, 5:23 PM CDTFlash Flood WarningMAFAndrews2 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.