Alert archive / Texas / Severe Thunderstorm Warnings in 1989

Severe Thunderstorm Warning 41, NWS Amarillo, TX

May 12, 1989Hartley County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 12, 1989, 4:13 PM CDT for Hartley County, Texas. It was in force for 62 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 12, 1989, 4:13 PM CDT (21:13 UTC)
Expired
May 12, 1989, 5:15 PM CDT
In force
62 min
Issued by
NWS Amarillo, TX
Area
Whole counties

County Hartley County, TX

The radar

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

What was reported inside it

TimeReportWhereRemark
May 12, 5:00 PM CDTHail 1.75Hartley, TX

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.2 hours before the alert went out and 106 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 12:00Z on 1989-05-12Temperature 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 12:00Z on 1989-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -202 square meters per square second.19395878Sfc1 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
1137 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-202 m²/s²
0-3 km storm-relative helicity
-213 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm 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 12, 12:11 PM CDT, 4 hours 2 minutes before
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Special weather statement, May 12, 2:43 PM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
235 PM CDT FRI MAY 12 1989

...TORNADO WATCH NUMBER 210 CONTINUES IN EFFECT UNTIL 900 PM CDT FOR
   BRISCOE...CASTRO...CHILDRESS...HALL...PRMER AND SWISHER COUNTIES
   OF THE SOUTH TEXAS PANHANDLE...

...FLASH FLOOD WATCH IN EFFECT UNTIL 100 AM SATURDAY FOR HALL AND
   CHILDRESS COUNTY OF THE SOUTHEAST TEXAS PANHANDLE...

AT 225 PM CDT AMARILLO RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTH
HALL COUNTY. MOVEMENT WAS EAST AT 15 MILES AN HOUR.

ELSEWHERE...LESS INTENSE SHOWERS AND THUNDERSTORMS WERE SCATTERED
BETWEEN CHILDRESS AND LUBBOCK TEXAS.

AN ISOLATED THUNDERSTORM WAS DEVELOPING RAPIDLY ON THE TEXAS/NEW MEXICO
STATE LINE...SOUTHWEST OF DALHART. THIS STORM MAY CONTAIN SMALL HAIL
AND VERY HEAVY RAINFALL...AS IT MOVES TO THE NORTHEAST AT 15 MILES AN
HOUR.

PERSONS IN THE WATCH AREAS SHOULD RAMAIN ALERT AND LISTSEN FOR LATER
STATEMENTS AND POSSIBLE WAR@NINGS.
Special weather statement, May 12, 2:49 PM CDT, 1 hour 24 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
235 PM CDT FRI MAY 12 1989

...TORNADO WATCH NUMBER 210 CONTINUES IN EFFECT UNTIL 900 PM CDT FOR
   BRISCOE...CASTRO...CHILDRESS...HALL...PRMER AND SWISHER COUNTIES
   OF THE SOUTH TEXAS PANHANDLE...

...FLASH FLOOD WATCH IN EFFECT UNTIL 100 AM SATURDAY FOR HALL AND
   CHILDRESS COUNTIES OF THE SOUTHEAST TEXAS PANHANDLE...

AT 225 PM CDT AMARILLO RADAR INDICATED A SEVERE THUNDERSTORM IN SOUTH
HALE COUNTY. MOVEMENT WAS EAST AT 15 MILES AN HOUR.

ELSEWHERE...LESS INTENSE SHOWERS AND THUNDERSTORMS WERE SCATTERED
BETWEEN CHILDRESS AND LUBBOCK TEXAS.

AN ISOLATED THUNDERSTORM WAS DEVELOPING RAPIDLY ON THE TEXAS/NEW MEXICO
STATE LINE...SOUTHWEST OF DALHART. THIS STORM MAY CONTAIN SMALL HAIL
AND VERY HEAVY RAINFALL...AS IT MOVES TO THE NORTHEAST AT 15 MILES AN
HOUR.

PERSONS IN THE WATCH AREAS SHOULD RAMAIN ALERT AND LISTEN FOR LATER
STATEMENTS AND POSSIBLJE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 3:17 PM CDTSevere Thunderstorm WarningAMADallam, Hartley58 min
May 12, 5:56 PM CDTSevere Thunderstorm WarningAMAHartley64 min
May 12, 6:38 PM CDTTornado WarningAMAHartley37 min

Nearby

Severe Thunderstorm Warnings in Texas, 1989Every severe thunderstorm warning in 1989

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.