Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 13, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 29, 1987, 7:59 PM CDT for Castro County, Parmer County, Texas. It was in force for 61 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 29, 1987, 7:59 PM CDT (00:59 UTC)
- Expired
- May 29, 1987, 9:00 PM CDT
- In force
- 61 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
Counties Castro County, TX, Parmer 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 29, 8:45 PM CDT | Tornado F0 | Castro, 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 00:00Z, 1.0 hours before the alert went out and 108 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
- 1438 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1469 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 24 m²/s²
- 0-3 km storm-relative helicity
- 60 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAMA 300059
SVRAMA
TXC069-369-300200-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
759 PM CDT FRI MAY 29 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN THE TEXAS PANHANDLE
...CASTRO...EASTERN PARMER
AT 8PM CDT AMARILLO RADAR INDICATED A SEVERE THUNDERSTORM 8 MILES
EAST FRIONA MOVING TO THE EAST AT 15 MILES AN HOUR.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.
WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A
STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES
OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM
HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55
MPH...DESTRUCTIVE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN.
FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF YOUR HOME OR BUSINESS. HEAVY RAINS FLOOD ROADS QUICKLY SO
DON'T DRIVE INTO AREAS WHERE WATER COVERS THE ROAD.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH YOU SHOULD
PREPARE FOR DAMAGING WIND IN 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, May 29, 6:50 PM CDT, 1 hour 9 minutes before
TTAASP KAMA 292350
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE AMARILLO TX
645 PM CDT FRI MAY 29 1987
...TORNADO WATCH REMAINS IN EFFECT FOR THE CENTRAL
AND SOUTHERN TEXAS PANHANDLE UNTIL 11 PM TONIGHT ...
AT 635 PM CDT ...RADAR WAS DETECTING VERY HEAVY THUNDERSTORMS FROM
SOUTHWEST OF BUFFALO LAKE TO NORTHEAST OF FRIONA MOVING EAST NORTHEAST
AT 15 MILES AN HOUR.
ELSEWHERE...THUNDERSTORMS WERE DEVELOPING FROM WEST OF AMARILLO TO
NORTH OF AMARILLO WERE RAIN AND PEA SIZE HAIL WAS REPORTED.
AT 615 PM THE HEREFORD FIRE DEPT. WAS REPORTING PEA TO MARBLE SIZE HAIL
WITH VERY HEAVY RAIN AND STRONG GUSTY WINDS UP TO 30 MPH.
KEEP TUNED TO YOUR NOAA WEATHER RADIO OR LOCAL RADIO AND T V$ STATION
FOR LATER STAEMENTS.The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 29, 7:17 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 58 min |
| May 29, 8:11 PM CDT | Severe Thunderstorm Warning | AMA | Randall | 64 min |
| May 29, 8:45 PM CDT | Tornado Warning | AMA | Castro | 60 min |
| May 29, 9:46 PM CDT | Tornado Warning | AMA | Castro, Randall, Swisher | 59 min |
| May 29, 10:22 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Donley | 68 min |
| May 29, 10:46 PM CDT | Tornado Warning | AMA | Castro, Swisher | 59 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1987Every severe thunderstorm 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.