Alert archive / Texas / Flash Flood Warnings in 1999
Flash Flood Warning 17, NWS Midland/Odessa, TX
NWS Midland/Odessa, TX issued this flash flood warning at May 1, 1999, 8:42 PM CDT for Gaines 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 counties it named.
The facts
- Issued
- May 1, 1999, 8:42 PM CDT (01:42 UTC)
- Expired
- May 1, 1999, 11:45 PM CDT
- In force
- 3 hr
- Issued by
- NWS Midland/Odessa, TX
- Area
- Whole counties
County Gaines County, TX
The radar
The Midland/Odessa radar (KMAF), 98 km from the middle of the area, began a volume at 01:45 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, 1.7 hours before the alert went out and 97 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
- 844 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 804 m above ground
- 0-6 km bulk shear
- 52 kt
- 0-1 km storm-relative helicity
- 143 m²/s²
- 0-3 km storm-relative helicity
- 232 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 5.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KMAF 020145 FFWMAF TXC165-020445- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE MIDLAND-ODESSA TX 842 PM CDT SAT MAY 1 1999 THE MIDLAND-ODESSA NATIONAL WEATHER SERVICE OFFICE HAS ISSUED A * FLASH FLOOD WARNING FOR... GAINES COUNTY IN TEXAS THIS INCLUDES THE CITY OF SEMINOLE * UNTIL 1145 PM CDT * AT 840 PM CDT...WEATHER SERVICE DOPPLER RADAR DETECTED VERY HEAVY RAIN 6 MILES SOUTH OF PAYNES CORNER...OR ABOUT 9 MILES SOUTHWEST OF SEMINOLE...MOVING NORTHEAST AT 25 MPH. * THE LINE OF THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE... NEAR SEMINOLE AT 900 PM CDT OVER FAIRVIEW AT 915 PM CDT NEAR CEDAR LAKE AT 940 PM CDT NEVER DRIVE INTO A FLOODED STRETCH OF ROAD. THE DEPTH OF WATER MAY BE ENOUGH TO FLOAT YOUR VEHICLE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING. IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY. RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY AND SEEK HIGHER GROUND. LAT...LON 32l94 10289 3253 10304 3254 10221 3294 10223 MARTIN
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 May 1, 1:45 PM CDT, 6 hours 57 minutes earlier.
Area forecast discussion, May 1, 1:45 PM CDT, 6 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE MIDLAND TX 145 PM CDT SAT MAY 1 1999 BLOCKING PATTERN OVER THE CENTRAL U.S. FINALLY BEGINNING TO BREAK UP. MAIN CHALLENGE THIS PERIOD IS TO FIGURE OUT THE JUST HOW QUICKLY THE UPPER LOW WILL LIFT OUT OF THE SWRN US...AND MUCH OF THIS WILL DEPEND ON THE TIMING AND MOVEMENT OF THE OTHER LOW OFF THE SERN U.S. COAST. IT LOOKS LIKE THE SERN LOW WILL FINALLY BEGIN TO PROGRESS EWD...AND THIS SHOULD ALLOW THE LOW TO OUR WEST TO BEGIN LIFTING OUT ON SUNDAY. FOR TONIGHT...SIGNIFICANT CONVECTION IS THE MAIN CONCERN. I BELIEVE THE DRYLINE WILL CONTINUE TO ADVANCE EWD THIS AFTERNOON AND KICK OFF STORMS. WITH THE LOW BEGINNING TO LIFT...I EXPECT A SERIES OF SHORTWAVES TO EJECT OUT OF THE SYSTEM...AND THIS WILL PROBABLY KEEP CONVECTION ACTIVE TONIGHT. TOMORROW THE LOW BEGINS TO LIFT...BUT I STILL EXPECT SOME LINGERING CLOUDS AND PCPN DURING THE MORNING HOURS. LOOKS LIKE SOME DRIER SFC AIR WILL SWEEP IN FROM THE WEST DURING THE AFTERNOON TOMORROW AS THE SFC LOW LIFTS NORTH...BUT WINDS SHOULD QUICKLY SWITCH BACK AROUND TO A SLY OR SELY DIRECTION LATE SUNDAY NIGHT...AND THEN BECOME MORE SWLY DURING THE DAY ON MONDAY FOR A BIT OF A WARMUP. UPPER LEVEL FLOW PATTERN ON MONDAY SHOULD BE NEARLY ZONAL. PRELIM TEMPS/POPS... MAF 52/78/53/85 4200 CNM 52/81/52/87 3100 MRF 45/77/45/80 2100 P07 58/79/56/86 3100 DJK
In the hours before
Local storm report, May 1, 7:25 PM CDT, 1 hour 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MIDLAND TX
725 PM CDT SAT MAY 01 1999
TIME(CDT) .....CITY LOCATION..... STATE...EVENT/REMARKS...
....COUNTY LOCATION....
345 PM SEMINOLE TX FLOODING
05/01/99 GAINES F.M. ROAD 303 NEAR HWY 180
IMPASSIBLE
438 PM 15 SE SEMINOLE TX TORNADO
05/01/99 GAINES SPOTTER REPORTED TORNADO
NEAR HWYS 1429 AND 422
450 PM 15 W LAMESA TX TORNADO
05/01/99 DAWSON SHERIFF OFFICE REPORTED
TORNADO NEAR SAND
515 PM 10 S WELCH TX TORNADO
05/01/99 DAWSON SHERIFF OFFICE REPORTED
TORNADO ON GROUND
536 PM 10 W TARZAN TX TORNADO
05/01/99 MARTIN SPOTTER REPORTED
TORNADO AT INTERSECTION
HWYS 349 AND 176
629 PM TARZAN TX TORNADO
05/01/99 MARTIN PUBLIC REPORTED TORNADO
01The office that day
Everything else NWS Midland/Odessa, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 9:17 PM CDT | Severe Thunderstorm Warning | MAF | Gaines | 28 min |
| May 1, 9:41 PM CDT | Severe Thunderstorm Warning | MAF | Andrews, Gaines | 34 min |
| May 1, 9:47 PM CDT | Severe Thunderstorm Warning | MAF | Dawson | 58 min |
| May 1, 11:14 PM CDT | Flash Flood Warning | MAF | Borden, Dawson | 61 min |
| May 1, 11:41 PM CDT | Severe Thunderstorm Warning | MAF | Scurry | 64 min |
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.