Alert archive / Texas / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 2, NWS Amarillo, TX

March 9, 1990Castro County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Mar 9, 1990, 6:58 PM CST for Castro County, Texas. It was in force for 62 min.

The area

The counties it named.

The facts

Issued: Mar 9, 1990, 6:58 PM CST (00:58 UTC)
Expired: Mar 9, 1990, 8:00 PM CST
In force: 62 min
Issued by: NWS Amarillo, TX
Area: Whole counties

County Castro 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, 1.0 hours before the alert went out and 93 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 656 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1657 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KAMA 100057
SVRAMA
TXC069-100200-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
658 PM CST FRI MAR 9 1990
 
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  800 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN THE TEXAS PANHANDLE
          ...CASTRO
 
AT 6:53 PM CST THE POLICE DEPARTMENT AT DIMMITT REPORTED 1 TO 11/2
INCH HAIL 7 MILES SOUTHWEST OF HART. THIS SEVERE THUNDERSTORM MAY ALSO
PRODUCE STRONG GUSTY WINDS AND VERY HEAVY RAINFALL. MOVEMENT OF THE
STORM WAS TO THE NORTHEAST AT 25 MPH.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

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, Mar 9, 5:34 PM CST, 1 hour 24 minutes before

TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006- 100035 -

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
 535 PM CST FRI MAR 9  1990

 ...LINE OF THUNDERSTORMS DEVELOPING IN THE WEST TEXAS PANHANDLE...

AT 525 PM CDT AMARILLO RADAR INDICATED A LINE OF THUNDERSTORMS...
SOME WITH VERY HEAVY RAINFALL...EXTENDING FROM NEAR DALHART...SOUTH
TO JUST WEST OF HEREFORD...TO NEAR MULESHOE. STRONGEST PORTION OF THE
LINE WAS JUST SOUTHWEST OF THE HEREFORD AREA.

STRONG GUSTY WINDS...SMALL HAIL...AND BRIEF HEAVY RAINFALL CAN BE
EXPECTED AS THE LINE MOVES TO THE EAST.

                     M

Local storm report, Mar 9, 6:27 PM CST, 31 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO, TX
627 PM CST FRI MAR 09 1990

REPORTS FROM EASTERN DEAF SMITH COUNTY..HEREFORD..AND EASTERN OLDHAM COUNTY..
VEGA..INCLUDE PEA SIZE HAIL AND BRIEF GUSTY WINDS.

Special weather statement, Mar 9, 6:39 PM CST, 19 minutes before

TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021-
KSZ003-006- 100030 -

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
 635 PM CST FRI MAR 9  1990

 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR MOST OF THE TEXAS PANHANDLE
AND MOST OF THE TEXAS SOUTH PLAINS TILL 1100 PM TONIGHT ...

AT 630 PM CST...A LINE OF VERY STRONG THUNDERSTORMS WAS LOCATED IN AN AREA
30 MILES WIDE FROM 20 MILES WEST OF GUYMON OKLAHOMA TO SOUTH OF STRATFORD AND
FROM WEST OF BUSHLAND TO NORTHWEST OF DIMMITT. THE STRONGEST THUNDERSTORMS WERE
LOCATED 5 MILES NORTHWEST OF WILDORADO AND JUST SOUTHEAST OF HEREFORD.

AT 615 PM PEA SIZE HAIL WAS REPORTED AT HEREFORD AND VEGA BY THE SHERIFFS
OFFICE.
MOVEMENT WAS NORTHEAST AT 30 MILES AN HOUR.

IF THREATENING WEATHER APPROACHES YOU SEEK SHELTER IMMEDIATELY.
KEEP TUNED TO YOUR NOAA WEATHER RADIO FOR LATER STATEMENTS.  RR

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 9, 7:03 PM CST	Severe Thunderstorm Warning	AMA	Potter, Randall	57 min
Mar 9, 7:52 PM CST	Severe Thunderstorm Warning	AMA	Swisher	68 min
Mar 9, 8:00 PM CST	Flash Flood Warning	AMA	Potter, Randall	60 min
Mar 9, 8:00 PM CST	Severe Thunderstorm Warning	AMA	Potter, Randall	60 min
Mar 9, 8:14 PM CST	Severe Thunderstorm Warning	AMA	Carson	61 min
Mar 9, 9:44 PM CST	Severe Thunderstorm Warning	AMA	Armstrong	61 min

Nearby

Severe Thunderstorm Warnings in Texas, 1990 Every severe thunderstorm 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.