Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 9, NWS Amarillo, TX

September 28, 1990Oldham County, Texas

NWS Amarillo, TX issued this flash flood warning at Sep 28, 1990, 10:10 PM CDT for Oldham County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Sep 28, 1990, 10:10 PM CDT (03:10 UTC)
Expired
Sep 29, 1990, 12:15 AM CDT
In force
2 hr
Issued by
NWS Amarillo, TX
Area
Whole counties

County Oldham 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 3.2 hours before the alert went out and 84 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, Amarillo Airport, TX at 00:00Z on 1990-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 00:00Z on 1990-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 square meters per square second.1939Sfc1 km3 km6 km9 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
NaN m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 290312
FFWAMA
TXC359-290515-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
1010 PM CDT FRI SEP 28 1990
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN THE TEXAS PANHANDLE
          ...EASTERN OLDHAM
 
AT 1000 PM CDT AMARILLO RADAR INDICATED NUMEROUS STRONG THUNDER
STORMS OVER EASTERN OLDHAM COUNTY MOVING NORTH AT 15 MILES AN
HOUR. AT 910 PM CDT WATER WAS OVER THE HIGHWAY AT THE INTERSECTION
OF US 385 AND FM 1061 IN NORTHEAST OLDHAM COUNTY. NEW THUNDER-
STORMS WITH BE MOVING OVER THIS SAME AREA DURING THE NEXT HOUR.
 
 
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, Sep 28, 4:45 PM CDT, 5 hours 25 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006-282242-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
442 PM CDT FRI SEP 28 1990

...STRONG THUNDERSTORMS MOVING INTO THE SOUTHWEST TEXAS PANHANDLE
   AND NORTHEAST NEW MEXICO...

AT 427 PM CDT AMARILLO RADAR INDICATED A 50 MILE WIDE AREA OF SHOWERS
AND THUNDERSTORMS..SOME WITH VERY HEAVY RAINFALL..EXTENDING FROM
PLAINVIEW TEXAS..NORTHWEST TO NEAR TUCUMCARI NEW MEXICO. HEAVIEST
RAINFALL WAS IN EASTERN DEAF SMITH COUNTY..NEAR HEREFORD..AND IN
SOUTHEAST CASTRO COUNTY..SOUTHEAST OF DIMMITT. ALSO IN QUAY COUNTY
NEW MEXICO..BETWEEN SAN JON AND GLENRIO. MOVEMENT WAS NORTH AT 15 MILES
AN HOUR.

ELSEWHERE..A FEW LIGHT SHOWERS WERE SCATTERED OVER THE CENTRAL AND
EAST PORTIONS OF THE OKLAHOMA PANHANDLE. MOVEMENT WAS NORTHEAST AT
10 MILES AN HOUR.

PERSONS IN THE SOUTHWEST TEXAS PANHANDLE AND NORTHEAST NEW MEXICO
CAN EXPECT PERIODS OF VERY HEAVY RAINFALL..WITH POSSIBLE FLOODING
OF LOW LYING AREAS..STRONG GUSTY WINDS..SMALL HAIL..AND DANGEROUS
LIGHTNING STRIKES DURING THE PASSAGE OF THESE STORMS.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Sep 28, 5:38 PM CDT, 4 hours 32 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006-282340-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
540 PM CDT FRI SEP 28 1990

...STRONG THUNDERSTORMS MOVING INTO THE WEST TEXAS PANHANDLE...

AT 526 PM CDT AMARILLO RADAR INDICATED NUMEROUS SHOWERS AND THUNDER-
STORMS..SOME WITH VERY HEAVY RAINFALL..EXTENDING FROM JUST WEST OF
THE AMARILLO AREA..WEST TO NEAR TUCUMCARI NEW MEXICO. HEAVIEST RAIN
WAS BETWEEN BUSHLAND AND VEGA..TO THE NORTH AND NORTHWEST OF ADRIAN
..AND JUST WEST OF GLENRIO NEW MEXICO. MOVEMENT WAS NORTH AT 15 TO 20
MILES AN HOUR.

PERSONS IN OLDHAM AND WESTERN POTTER COUNTIES IN THE TEXAS PANHANDLE
..AND EASTERN QUAY OF NEW MEXICO SHOULD BE ALERT FOR BRIEF VERY HEAVY
RAINFALL..STRONG GUSTY WINDS..SMALL HAIL..AND DANGEROUS LIGHTNING
STRIKES DURING THE PASSAGE OF THESE STORMS.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE?
WARNINGS.
Special weather statement, Sep 28, 6:40 PM CDT, 3 hours 30 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006-290040-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
640 PM CDT FRI SEP 28 1990

...STRONG THUNDERSTORMS MOVING INTO THE NORTHWEST TEXAS PANHANDLE...

AT 630 PM CDT AMARILLO RADAR INDICATED A LINE OF STRONG THUNDERSTORMS
WITH VERY HEAVY RAIN EXTENDING FROM THE WEST END OF LAKE MEREDITH..WEST
TO NEAR ROSEBUD NEW MEXICO. STRONGEST PORTION OF THE LINE WAS MOVING
INTO SOUTHERN HARTLEY COUNTY. MOVEMENT WAS NORTH AT 20 MILES AN HOUR.
PERSONS IN HARTLEY AND MOORE COUNTIES OF THE NORTHWEST TEXAS PANHANDLE
SHOULD BE ALERT FOR STRONG WINDS..SMALL HAIL..AND DANGEROUS LIGHTNING
DURING THE PASSAGE OF THIS LINE.

ELSEWHERE..SCATTERED SHOWERS AND A FEW THUNDERSTORMS IN THE SOUTH TEXAS
PANHANDLE BETWEEN CHILDRESS AND HEREFORD. MOVEMENT WAS NORTH AT 20
MILES AN HOUR.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Sep 28, 7:42 PM CDT, 2 hours 28 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006-290140-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
740 PM CDT FRI SEP 28 1990

...STRONG THUNDERSTORMS INCREASING IN AREAL COVERAGE IN THE NORTHWEST
AND SOUTHEAST TEXAS PANHANDLE...

AT 726 PM CDT AMARILLO RADAR INDICATED NUMEROUS STRONG THUNDERSTORMS
WITH VERY HEAVY RAIN OVER THE NORTHWEST TEXAS PANHANDLE BETWEEN DALHART
AND AMARILLO..AND IN THE SOUTHEAST TEXAS PANHANDLE BETWEEN CHILDRESS
AND AMARILLO. HEAVIEST RAINFALL WAS IN ARMSTRONG COUNTY..JUST SOUTHEAST
OF CLAUDE..AND IN HARTLEY AND OLDHAM COUNTIES. MOVEMENT WAS NORTH AT 15
TO 20 MILES AN HOUR.

DURING THE PASSAGE OF THE STRONGER STORMS..FLOODING OF STREET AND ROADS
MAY OCCUR..ALONG WITH PONDING OF WATER IN LOW LYING AREAS. MOTORISTS
SHOULD NOT CROSS WATER OF UNKNOWN DEPTH. SMALL HAIL..AND STRONG GUSTY WINDS
MAY ALSO ACCOMPANY THESE STORMS.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.
Special weather statement, Sep 28, 8:41 PM CDT, 1 hour 29 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006-290240-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
840 PM CDT FRI SEP 28 1990

...STRONG THUNDERSTORMS INCREASING IN AREAL COVERAGE IN THE NORTHWEST
AND SOUTHEAST TEXAS PANHANDLE...

AT 830 PM CDT AMARILLO RADAR INDICATED NUMEROUS STRONG THUNDERSTORMS
WITH VERY HEAVY RAIN OVER THE NORTHWEST TEXAS PANHANDLE BETWEEN DALHART
AND AMARILLO..AND IN THE SOUTHEAST TEXAS PANHANDLE BETWEEN CLARENDON
AND AMARILLO. HEAVIEST RAINFALL WAS IN CARSON AND DONLEY COUNTIES IN
THE SOUTHEAST PANHANDLE..AND IN OLDHAM..EASTERN HARTLEY..AND MOORE
COUNTIES OF THE NORTHWEST TEXAS PANHANDLE. M)LL HAIL..AND STRONG GUSTY WINDS
MAY ALSO ACCOMPANY THESE STORMS.

STAY TUNED TO NOAA WEATHER RADIO FOR LATER STATEMENTS AND POSSIBLE
WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 29, 2:00 AM CDTFlash Flood WarningAMAOldham3 hr

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.