Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 32, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this flash flood warning at May 28, 1999, 8:34 PM CDT for Brewster 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
- May 28, 1999, 8:34 PM CDT (01:34 UTC)
- Expired
- May 28, 1999, 11:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Brewster County, TX
The radar
The Midland/Odessa radar (KMAF), 245 km from the middle of the area, began a volume at 01:37 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
Del Rio, TX (KDRT), launched 00:00Z, 1.6 hours before the alert went out and 220 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
- 1347 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 2221 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KMAF 290139
FFWMAF
TXC043-290430-
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX
834 PM CDT FRI MAY 28 1999
THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BREWSTER COUNTY IN TEXAS
* UNTIL 1130 PM CDT
* AT 825 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED NUMEROUS
THUNDERSTORMS WITH VERY HEAVY RAIN OVER CENTRAL BREWSTER COUNTY.
* SOME LOCATIONS AFFECTED BY THIS FLASH FLOOD WARNING INCLUDE...
PERSIMMON GAP AND PORTIONS OF THE BIG BEND NATIONAL PARK.
THUNDERSTORMS WITH VERY HEAVY RAINFALL OVER CENTRAL BREWSTER COUNTY
ARE EXPECTED TO MERGE INTO ONE LARGE COMPLEX BETWEEN 845 AND 900 PM
CDT. THIS WILL RESULT IN VERY SLOW MOVING THUNDERSTORMS WITH HEAVY
RAINFALL...WHICH WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND
STREAMS...LOW WATER CROSSINGS...AND NORMALLY DRY WASHES.
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.
DURING THE DARKNESS OF NIGHT...FLOODED SECTIONS OF ROAD MAY NOT BE
VISIBLE TO@ MOTORISTS. SOME ROADWAYS MAY EVEN BE CLOSED.
LAT...LON 3010 10265 3011 10379 2949 10378 2949 10282
2991 10255
DJKWhat 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 May 28, 2:22 PM CDT, 6 hours 12 minutes earlier.
Area forecast discussion, May 28, 2:22 PM CDT, 6 hours 12 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 222 PM CDT FRI MAY 28 1999 SHRA/TSRA CONTINUING TO MOVE/DISSIPATE SE ACROSS N/E PB ATTM IN ASSOCN WITH WEAK SHRTWV TROF IN NW MID LEVEL FLOW. AS A RESULT CONVECTIVE DEBRIS CLOUDS HAVE LIMITED SURFACE HEATING ACROSS AREAS N OF PECOS RIVER AND INSTABILITY. INSOLATION WILL LIKELY INCREASE LATE AFTERNOON AND WITH CAPES AROUND 1000 J/KG AND PWS AROUND 1 TSTMS MAY DEVELOP. FULL SUN HOWEVER HAS BEEN ONGOING IN MTNS WHERE 85H-7H THETA-E RIDGE AXIS IS POSITIONED. VISIBLE IMAGERY INDICATES CU/SHRA DEVELOPING DAVIS/GDP MTNS AND WILL LOOK FOR WDLY SCT TSTMS THROUGH EARLY EVENING. MAIN CONCERN FOR THE NIGHT IS POTENTIAL FOR CONVECTIVE COMPLEX TO MOVE SE OUT OF NM MTNS SE NM/W TX. MODELS (EXCEPT AVN) DEPICT A SHRTWV TROF MOVING SE ACROSS NM TONIGHT. STILL ETA/NGM DIFFER ON WHERE BEST ENERGY WILL COME OUT WITH NGM BEING FARTHEST N. IF COMPLEX DOES DEVELOP WOULD FEED INTO LOW LEVEL THETA-E RIDGE AXIS WHICH WILL BE INVOF OR JUST E OF MTNS. ETA IS AGGRESSIVE WITH FEATURE INDICATING DEEP LAYERED POSITIVE VERTICAL MOTIONS AND WITH PWS AROUND 1...THEREFORE POTENTIAL FOR SIGNIFICANT RAINS WOULD EXIST WITHIN COMPLEX. HAVE COORD WITH ABQ/LBB AND WILL WORD LOCALLY HEAVY RAIN WITH LIKELY POPS SE NM AND NEARBY W TX COUNTIES. SCATTERED POPS ELSEWHERE ACROSS THE POPS REFLECT INCREASED CHANCES LATE WITH COMPLEX. WILL OPT TO HOLD OFF ON FFA ATTM BUT LATER SHIFTS WILL NEED MONITOR. LONG RANGE PATTERN SUGGEST SIGNIFICANT WARMING AND DRIER PER MID LEVEL RIDGE AND WARM 7H TEMPS. MAF 60/89/62/93 40/20/20/20 CNM 60/90/61/94 60/30/20/10 MRF 52/86/55/86 20/20/20/- P07 65/87/67/92 20/20/20/- GPM
The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 28, 7:40 PM CDT | Severe Thunderstorm Warning | MAF | Brewster | 65 min |
| May 28, 7:47 PM CDT | Severe Thunderstorm Warning | MAF | Pecos | 43 min |
| May 28, 7:53 PM CDT | Severe Thunderstorm Warning | MAF | Terrell | 52 min |
| May 28, 8:56 PM CDT | Severe Thunderstorm Warning | MAF | Pecos | 64 min |
| May 28, 10:01 PM CDT | Severe Thunderstorm Warning | MAF | Upton | 44 min |
| May 28, 10:09 PM CDT | Flash Flood Warning | MAF | Pecos | 3 hr |
| May 28, 10:27 PM CDT | Severe Thunderstorm Warning | MAF | Reagan | 63 min |
| May 28, 10:41 PM CDT | Severe Thunderstorm Warning | MAF | Upton | 64 min |
| May 28, 11:00 PM CDT | Severe Thunderstorm Warning | MAF | Loving, Reeves | 45 min |
| May 28, 11:32 PM CDT | Severe Thunderstorm Warning | MAF | Reagan | 43 min |
| May 29, 12:00 AM CDT | Severe Thunderstorm Warning | MAF | Ector, Loving, Winkler | 45 min |
| May 29, 12:33 AM CDT | Severe Thunderstorm Warning | MAF | Andrews | 42 min |
| May 29, 12:35 AM CDT | Flash Flood Warning | MAF | Loving | 115 min |
| May 29, 12:55 AM CDT | Flash Flood Warning | MAF | Andrews | 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.