Alert archive / Texas / Flash Flood Warnings in 1987

Flash Flood Warning 2, NWS Lubbock, TX

May 27, 1987Cottle County, King County, Texas

NWS Lubbock, TX issued this flash flood warning at May 27, 1987, 2:55 PM CDT for Cottle County, King County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 27, 1987, 2:55 PM CDT (19:55 UTC)
Expired
May 27, 1987, 5:45 PM CDT
In force
3 hr
Issued by
NWS Lubbock, TX
Area
Whole counties

Counties Cottle County, TX, King County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Fort Sill, OK (KFSI), launched 12:00Z, 7.9 hours before the alert went out and 193 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, Fort Sill, OK at 12:00Z on 1987-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 415 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Sill, OK at 12:00Z on 1987-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 289 square meters per square second.193958Sfc1 km3 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
415 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
645 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
289 m²/s²
0-3 km storm-relative helicity
308 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.1

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KLBB 271955
FFWLBB
TXC101-269-272245-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LUBBOCK TX
255 PM CDT WED MAY 27 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL  545 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
 
IN NORTHWEST TEXAS
          ...SOUTHERN COTTLE...KING
 
AT 245 PM LUBBOCK RADAR WAS INDICATING STRONG THUNDERSTORMS
WITH VERY HEAVY RAINFALL CONTINUING TO MOVE INTO WESTERN KING
COUNTY...AND THEN NORTHEAST AT 15 MPH INTO SOUTHERN COTTLE COUNTY.
THE KING COUNTY SHERIFFS OFFICE REPORTED THAT HIGHWAY 83 NORTH OF
GUTHRIE WAS CLOSED DUE TO WATER OVERTHE ROAD IN SEVERAL PLACES.
 
THERE HAVE BEEN REPORTS OF UP TO 6 INCHES OF RAIN OVER THE LAST
24 HOURS IN NORTHERN KING COUNTY AROUND DUMONT.
 
 
 
 
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.

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.

In the hours before

Special weather statement, May 27, 12:47 PM CDT, 2 hours 8 minutes before
WEST TEXAS SEVERE THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE LUBBOCK TX
1250 PM CDT WED MAY 27 1987

...STRONG POTENTIAL FOR SEVERE THUNDERSTORMS AGAIN TODAY PANHANDLE AND
   SOUTH PLAINS...

CONDITIONS REMAIN HIGHLY FAVORABLE THIS AFTERNOON AND TONIGHT FOR SEVERE
THUNDERSTORMS OVER THE PANHANDLE AND SOUTH PLAINS. A WEAK DISTURBANCE
PASSING THROUGH THE EASTERN PANHANDLE AND SOUTH PLAINS EARLY THIS
AFTERNOON WAS CAUSING DRIER AIR TO SPREAD ACROSS WESTERN COUNTIES OF
THE SOUTH PLAINS. AFTERNOON HEATING TODAY WILL BE MUCH GREATER THROUGH
WESTERN COUNTIES OF THE SOUTH PLAINS THAN THE REMAINDER OF THE SOUTH
PLAINS AND PANHANDLE.

THUS...THE ZONE SEPERATING WARM AND DRY AIR FROM THE COOLER MOIST AIR--
THE DRY LINE--IS EXPECTED TO BE ACROSS CENTRAL PORTIONS OF THE SOUTH
PLAINS PLAINS AND WESTERN PORTIONS OF THE PANHANDLE BY LATE AFTERNOON.
THIS IS SLIGHTLY TO THE EAST OF WHERE IT WAS YESTERDAY. STRONG THUNDER-
STORMS OFTEN ERUPT NEAR THIS ZONE.

THE STRONG AFTERNOON HEATING TODAY IS EXPECTED TO RESULT IN RAPID
THUNDERSTORM GROWTH FROM THE WESTERN PANHANDLE THROUGH THE CENTRAL
SOUTH PLAINS AND INTO THE PERMIAN BASIN. SEVERE THUNDERSTORMS REMAIN
A THREAT DUE TO HIGHLY FAVORABLE UPPER LEVEL ATMOSPHERIC CONDITIONS.

RESIDENTS ARE STRONGLY URGED TO PAY ATTENTION TO DEVELOPING WEATHER
CONDITIONS THIS AFTERNOON AND TONIGHT. KEEP UP ON THE LATEST WEATHER
INFORMATION BY TUNING IN TO COMMERICAL RADIO...TELEVISION OR NOAA
WEATHER RADIO.

The office that day

Everything else NWS Lubbock, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 26, 7:13 PM CDTSevere Thunderstorm WarningLUBHale62 min
May 26, 7:40 PM CDTSevere Thunderstorm WarningLUBFloyd65 min
May 27, 12:27 AM CDTSevere Thunderstorm WarningLUBLynn63 min
May 27, 12:45 AM CDTSevere Thunderstorm WarningLUBGarza60 min
May 27, 2:05 AM CDTSevere Thunderstorm WarningLUBLynn55 min
May 27, 2:49 AM CDTSevere Thunderstorm WarningLUBCottle, Dickens56 min

Nearby

Flash Flood Warnings in Texas, 1987Every flash flood warning in 1987

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.