Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 97, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this flash flood warning at Aug 2, 1999, 11:00 AM CDT for Dawson 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
- Aug 2, 1999, 11:00 AM CDT (16:00 UTC)
- Expired
- Aug 2, 1999, 2:00 PM CDT
- In force
- 3 hr
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Dawson County, TX
The radar
The Midland/Odessa radar (KMAF), 86 km from the middle of the area, began a volume at 16:01 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, 4.0 hours before the alert went out and 86 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.
- Mixed-layer CAPE
- 27 J/kg
- Mixed-layer CIN
- -203 J/kg
- Mixed-layer LCL
- 1458 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- 103 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMAF 021606
FFWMAF
TXC115-021900-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX
1100 AM CDT MON AUG 2 1999
THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
DAWSON COUNTY IN TEXAS
* UNTIL 200 PM CDT
* AT 1055 AM CDT...DAWSON COUNTY SD REPORTED STREET FLOODING IN
LAMESA. THUNDERSTORMS PRODUCING HEAVY RAIN WERE LOCATED OVER
LAMESA...MOVING SLOWLY NORTH.
RADAR ESTIMATED BETWEEN 2 TO 3 INCHES OF RAIN HAS FALLEN NEAR LAMESA.
ADDITIONAL THUNDERSTORMS PRODUCING HEAVY RAINS WERE LOCATED OVER
NORTHEASTERN ANDREWS COUNTY. THESE STORMS WILL MOVE NORTHEAST AT 10
TO 15 MPH AND AFFECT DAWSON COUNTY BY MIDDAY. ADDITIONAL RAINFALL
AMOUNTS OF 2 TO 3 INCHES ARE POSSIBLE.
DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER
COVERS THE ROADWAY. THE WATER MAY BE TOO DEEP FOR YOU TO CROSS
SAFELY.
LAT...LON 3269 10220 3253 10220 3253 10198 3268 10177
3291 10177 3291 10201
&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 Aug 2, 10:40 AM CDT, 20 minutes earlier.
Area forecast discussion, Aug 2, 10:40 AM CDT, 20 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 1040 AM CDT MON AUG 2 1999 WILL UPDATE TO INCREASE POPS ACROSS NORTHWESTERN COUNTY WARNING... NORTHWEST PERMIAN BASIN...AND MENTION LOCALLY HEAVY RAIN BASED ON CURRENT RADAR TRENDS WITH TROPICAL LOW IN VICINITY. WILL TWEEK CLOUDS AND TEMPS ELSEWHERE BASED ON CURRENT TRENDS. .MAF... TX...NONE. NM...NONE. 12
In the hours before
Special weather statement, Aug 2, 5:49 AM CDT, 5 hours 11 minutes before
NMZ027>029-TXZ045>048-050>052-057>063-067>070-074-075-079>082-030500- THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE MIDLAND TX 547 AM CDT (447 AM MDT) MON AUG 2 1999 THIS OUTLOOK PERTAINS TO THE FOLLOWING COUNTIES IN WEST TEXAS: ANDREWS CULBERSON GLASSCOCK MARTIN REAGAN UPTON BORDEN DAWSON HOWARD MIDLAND REEVES WARD BREWSTER ECTOR JEFF DAVIS PECOS SCURRY WINKLER CRANE GAINES LOVING PRESIDIO TERRELL AND IN SOUTHEAST NEW MEXICO: EDDY LEA SYNOPSIS:A TROPICAL UPPER LEVEL LOW PRESSURE SYSTEM HELPED TO CAUSE SCATTERED THUNDERSTORMS LAST NIGHT... AND SOME OF THESE STORMS HAVE PERSISTED INTO THE EARLY MORNING HOURS. THIS UPPER LOW IS EXPECTED TO DRIFT NORTH TODAY... SO ITS CONTRIBUTION TO THUNDERSTORM DEVELOPMENT WILL BE ON THE DECREASE. HOWEVER... AS THE ATMOSPHERE REMAINS MOIST AND UNSTABLE... AFTERNOON HEATING AND LIFT PROVIDED FROM NUMEROUS OUTFLOW BOUNDARIES WILL TRIGGER SCATTERED THUNDERSTORMS TODAY. DEVELOPMENT OF ADDITIONAL THUNDERSTORMS WILL MOST LIKELY BE DURING THE LATE AFTERNOON. THESE THUNDERSTORMS WILL GENERALLY BE SLOW MOVING AND CAPABLE OF PRODUCING VERY HEAVY RAIN. THEREFORE... THE POTENTIAL FOR LOCALIZED FLASH FLOODING WILL EXIST. SEVERE WEATHER IS NOT EXPECTED... AND SPOTTER ACTIVATION IS NOT ANTICIPATED. FOR THE WEST CENTRAL TEXAS OUTLOOK SEE PRODUCT LBBSPSSJT. 72
Local storm report, Aug 2, 8:03 AM CDT, 2 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND TX
803 AM CDT MON AUG 2 1999
TIME(CDT) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM 12 NW GAIL TX WIND DAMAGE
08/01/99 BORDEN 2-3 TREE LIMBS DOWNED BY
THUNDERSTORM WINDSLocal storm report, Aug 2, 8:03 AM CDT, 2 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND TX
803 AM CDT MON AUG 2 1999
TIME(CDT) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
0830 PM 12 NW GAIL TX WIND DAMAGE
08/01/99 BORDEN 2-3 TREE LIMBS DOWNED BY
THUNDERSTORM WINDSLocal storm report, Aug 2, 9:32 AM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND TX
932 AM CDT MON AUG 2 1999
TIME(CDT) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
0923 AM SEMINOLE TX URBAN FLOODING
08/02/99 GAINES STREET FLOODING REPORTED
BY GAINES COUNTY SD
0927 AM 4 NW SEMINOLE TX FLASH FLOODING
08/02/99 GAINES WATER FLOWING OVER TX 214
REPORTED BY GAINES COUNTY
SDLocal storm report, Aug 2, 9:32 AM CDT, 1 hour 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND TX
932 AM CDT MON AUG 2 1999
TIME(CDT) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
0923 AM SEMINOLE TX URBAN FLOODING
08/02/99 GAINES STREET FLOODING REPORTED
BY GAINES COUNTY SD
0927 AM 4 NW SEMINOLE TX FLASH FLOODING
08/02/99 GAINES WATER FLOWING OVER TX 214
REPORTED BY GAINES COUNTY
SDThe office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 1, 7:19 PM CDT | Flash Flood Warning | MAF | Brewster | 3 hr |
| Aug 1, 7:28 PM CDT | Flash Flood Warning | MAF | Scurry | 3 hr |
| Aug 2, 9:25 AM CDT | Flash Flood Warning | MAF | Gaines | 3 hr |
| Aug 2, 1:03 PM CDT | Flash Flood Warning | MAF | Loving, Winkler | 3 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.