Alert archive / Texas / Flash Flood Warnings in 1999

Flash Flood Warning 41, NWS Midland/Odessa, TX

June 7, 1999Brewster County, Jeff Davis County, Texas

NWS Midland/Odessa, TX issued this flash flood warning at Jun 7, 1999, 4:47 PM CDT for Brewster County, Jeff Davis 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 7, 1999, 4:47 PM CDT (21:47 UTC)
Expired: Jun 7, 1999, 7:45 PM CDT
In force: 3 hr
Issued by: NWS Midland/Odessa, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Brewster County, TX, Jeff Davis County, TX

The radar

The Midland/Odessa radar (KMAF), 217 km from the middle of the area, began a volume at 21:50 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, 9.8 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 509 J/kg
Mixed-layer CIN: -222 J/kg
Mixed-layer LCL: 877 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 172 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KMAF 072241 COR
FFWMAF
TXC043-243-080045-

BULLETIN - EAS ACTIVATION REQUESTED...CORRECTED HEADER EXPIRATION DATE
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX
447 PM CDT MON JUN 7 1999

THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JEFF DAVIS COUNTY
  NORTHERN BREWSTER COUNTY IN TEXAS
  
* UNTIL 745 PM CDT

* AT 444 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED A
  THUNDERSTORM WITH VERY HEAVY RAIN 5 MILES SOUTHEAST OF ALPINE...   
  LITTLE MOVEMENT INDICATED.

* SOME LOCATIONS AFFECTED BY THIS FLASH FLOOD WARNING INCLUDE...   
  ALTUDA AND ALPINE

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPBTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

LAT...LON 3041 10380 3010 10379 3033 10297 3067 10347

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 7, 2:09 PM CDT, 2 hours 38 minutes earlier.

Area forecast discussion, Jun 7, 2:09 PM CDT, 2 hours 38 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MIDLAND TX
209 PM CDT MON JUN 7 1999

TROF/DRYLINE BACKED AGAINST NM/TX MTNS TDA WITH DWPNTS IN 50S AND
60S ACRS CWA.  H5 SHRTWV TROF CONT NEWD FM NCNTRL TX PER WV STLT
IMAGERY.  H5 TROF CENTERED OVER PAC NW/SW BC WITH FLATTENED H5 RDG
ACRS MUCH OF SRN U.S. BUILDING WSWWD THRU TX.  UNMODIFIED 12Z KMAF
SNDG NOT AS IMPRESSIVE AS LAST COUPLE DAYS WITH -6 LI...CAPE ARND
1000 J/KG AND LTL TO NO CAP AGAIN.

AS H5 LOW EJECTS NEWD...OMEGA BLOCK FORMS OVER NWRN U.S. WITH BROAD
TROF UNDERCUTTING ACRS SWRN U.S. BY END OF PD.  END RESULT WILL BE
WEAK SHRTWV/S GRAZING MAINLY SERN N.M. THRU 00Z/10 IN WEAKER H5 FLOW.
LOW LVL MSTR WILL REMAIN ABUNDANT DURG THE SAME PD WITH
QUASI/STATIONARY TROF/DRYLINE PROVIDING FOCUS...MAINLY ACRS TX/N.M.
MTNS IN PERSISTENT LOW LVL SERN FLOW.  WEAK H7-5 LAYER Q/VECTOR
CONVERGENCE BCM EVIDENT OVER WRN TX/WRN NM TUE AFTN AND WITH
INCREASE IN MID LVL MSTR SHOULD BE ABLE TO DVLP/SUSTAIN CONVECTION.
H7-H5 Q VECTOR CONVERGENCE INCREASES SLGTLY THRU END OF WEEK...BUT
MID LVL THERMAL RDG ALSO BEGINS TO HEAT UP AND SHIFT EWD INTO AREA NR
END OF PD AND EXTENDED. THIS COULD SERVE TO SQUELCH SOME OF THE TSRA
CHC...SPCLY OVER ERN PORTIONS CWA. NOT SURE WHETHER 15-16C H7 TEMPS
ENUF TO HINDER TSRA OVER MTNS.

SLY/SELY WINDS WILL PERSIST THRU PD AT SFC WITH DIURNAL 20-30KT H85
JET.  XPC GENERALLY 5-15 MPH WINDS OVNGT/10-20 MPH DURG DAY WITH
BOUTS OF MORNING LOW CLDS MAINLY ACRS ERN SECTIONS CWA.

PREFER FAN TEMPS TO FWC...DESPITE INCREASE IN HIGH LVL SUBTROPICAL
MSTR AHD OF WRN TROF.  IN THE EXTENDED...WILL OPT FOR SLIGHT CHC POPS
AND LTL WARMER TEMPS AS H5 RDG/H7 THERMAL RDG BUILDS INTO AREA PER
CONSISTENCY IN MRF RUNS AND AGREEMENT IN OTHER MEDIUM RANGE MODELS.

MAF 68/92/67/93  2/1/2/1
CNM 67/93/66/94  3/2/2/2
MRF 58/89/58/90  3/2/3/2
P07 69/92/69/91  3/2/3/2

AKL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 6, 7:05 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	55 min
Jun 6, 7:17 PM CDT	Severe Thunderstorm Warning	MAF	Andrews, Gaines	58 min
Jun 6, 7:58 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	62 min
Jun 6, 9:02 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	28 min
Jun 7, 2:54 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	51 min
Jun 7, 3:02 PM CDT	Severe Thunderstorm Warning	MAF	Pecos	43 min
Jun 7, 4:18 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis, Reeves	42 min
Jun 7, 4:27 PM CDT	Severe Thunderstorm Warning	MAF	Jeff Davis	48 min
Jun 7, 4:46 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	44 min
Jun 7, 4:54 PM CDT	Severe Thunderstorm Warning	MAF	Culberson	51 min
Jun 7, 4:58 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	47 min
Jun 7, 5:18 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	42 min
Jun 7, 5:29 PM CDT	Severe Thunderstorm Warning	MAF	Brewster	46 min
Jun 7, 5:43 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	47 min
Jun 7, 5:51 PM CDT	Severe Thunderstorm Warning	MAF	Culberson	39 min
Jun 7, 6:23 PM CDT	Flash Flood Warning	MAF	Presidio	3 hr
Jun 7, 6:23 PM CDT	Severe Thunderstorm Warning	MAF	Presidio	52 min

Nearby

Flash Flood Warnings in Texas, 1999 Every 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.