Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Mar 9, 1990, 8:31 PM CST for Texas County, Oklahoma. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Mar 9, 1990, 8:31 PM CST (02:31 UTC)
- Expired
- Mar 9, 1990, 9:30 PM CST
- In force
- 59 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Texas County, OK
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, 2.5 hours before the alert went out and 170 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
- 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
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAMA 100231
SVRAMA
OKC139-100330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
831 PM CST FRI MAR 9 1990
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 930 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN THE OKLAHOMA PANHANDLE
...TEXAS
AT 825 PM CST... RADAR WAS DETECTING A VERY STRONG THUNDERSTORM 5
MILES SOUTH OF HARDESTY STATION OKLAHOMA. STORM WAS MOVING NORTHEAST
AT 25 MILES AN HOUR.
PERSONS IN THE PATH OF THIS STORM CAN EXPECT HAIL AND DAMAGING
THUNDERSTORM WINDS.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IWN EXCESS OF 55 MPH...LARGE HAIL...AND
DEADLY LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT STAY AWAY FROM WINDOWS.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, 2 hours 57 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.
MLocal storm report, Mar 9, 6:27 PM CST, 2 hours 4 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, 1 hour 52 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
Local storm report, Mar 9, 7:19 PM CST, 1 hour 12 minutes before
STORM REPORT NATIONAL WEATHER SERVICE AMARILLO, TX 718 PM CST FRI MAR 09 1990 NICKEL SIZE HAIL REPORTED AT 7:11 PM IN NORTHERN RANDALL COUNTY..SW AMARILLO.
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1990Every 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.