Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 101, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jun 21, 1990, 5:29 PM CDT for Hemphill 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
- Jun 21, 1990, 5:29 PM CDT (22:29 UTC)
- Expired
- Jun 21, 1990, 6:30 PM CDT
- In force
- 61 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Hemphill 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 |
|---|---|---|---|
| Jun 21, 5:35 PM CDT | Thunderstorm Wind 59 | Hemphill, 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, 10.5 hours before the alert went out and 146 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
- 758 J/kg
- Mixed-layer CIN
- -228 J/kg
- Mixed-layer LCL
- 1580 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 252 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAMA 212229
SVRAMA
TXC211-212330-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
529 PM CDT THU JUN 21 1990
THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN THE TEXAS PANHANDLE
...HEMPHILL
AT 529 PM CDT..RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTHWEST
OF CANADIAN. THIS THUNDERSTORM WILL PRODUCE VERY STRONG WINDS AS IT
MOVES TO THE SOUTHEAST AT 20 MPH.
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.
SCWhat 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
Local storm report, Jun 21, 11:36 AM CDT, 5 hours 53 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE AMARILLO, TX
1134 AM CDT THU JUN 21 1990
STORM REPORT FOR JUNE 21 1990
1010 MDT..NICKEL SIZE HAIL AT THE PORT OF ENTRY STATION NEAR SAN JON
.).REPORTED BY PORT OF ENTRY EMPLOYEE
SCSpecial weather statement, Jun 21, 12:42 PM CDT, 4 hours 47 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021- KSZ003-006-211845- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 1240 PM CDT THU JUN 21 1990 ...STRONG THUNDERSTORMS CONTINUE INTO THE WESTRN TEXAS PANHANDLE... AT 1235 PM CDT...NATIONAL WEATHER SERVICE RADARS WERE INDICATING TWO STRONG THUNDERSTORMS IN DEAF SMITH COUNTY IN THE WESTERN TEXAS PANHANDLE. ONE LOCATED 8 MILES WEST AND THE OTHER 20 MILES NrORTHWEST OF HEREFORD. THESE STORMS CAN PRODUCE HAIL...STRONG WINDS AND DANGEROUS LIGHTNING. BRIEF PERIODS OF HEAVY RAIN CAN ALSO BE EXPECTED. PEOPLE IN AND AROUND THESE STORMS SHOULD BE AWARE OF THIS STORM SITUATION.
Special weather statement, Jun 21, 12:46 PM CDT, 4 hours 43 minutes before
TXZ001>012-COZ015>017-NMZ005-009-013-OKZ001>004-009-014-021- KSZ003-006-211845- SPECIAL WEATHER STATEMENT AND RADAR SUMMARY...CORRECTION... NATIONAL WEATHER SERVICE AMARILLO TX 1245 PM CDT THU JUN 21 1990 ...STRONG THUNDERSTORMS CONTINUE INTO THE WESTRN TEXAS PANHANDLE... AT 1235 PM CDT...NATIONAL WEATHER SERVICE RADARS WERE INDICATING TWO STRONG THUNDERSTORMS IN DEAF SMITH COUNTY IN THE WESTERN TEXAS PANHANDLE. ONE LOCATED 8 MILES WEST AND THE OTHER 20 MILES NORTHWEST OF HEREFORD. THESE STORMS CAN PRODUCE HAIL...STRONG WINDS AND DANGEROUS LIGHTNING. BRIEF PERIODS OF HEAVY RAIN CAN ALSO BE EXPECTED. MOVEMENT WAS NORTH- EAST AT 20 MILES AN HOUR. PEOPLE IN THESE AREAS SHOULD BE AWAREu OF THIS SITUATION.
Local storm report, Jun 21, 5:27 PM CDT, 2 minutes before
STORM REPORT NATIONAL WEATHER SERVICE AMARILLO, TX 527 PM CDT THU JUN 21 1990 STORM REPORT FOR JUNE 21 1990 1545-1600 CDT (1445-1500 CST)...TELEPHONE AND CABLE LINES DOWN ON THE WEST SIDE OF BEAVER. SHINGLES BLOWN OFF SEVERAL HOMES..4 TO 5 INCH TREE LIMBS BROKEN THROUGHOUT TOWN. ONE WINDSHIELD BUSTED OUT OF CAR. SC
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 21, 12:50 PM CDT | Severe Thunderstorm Warning | AMA | Oldham | 55 min |
| Jun 21, 1:56 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Randall | 64 min |
| Jun 21, 4:08 PM CDT | Severe Thunderstorm Warning | AMA | Roberts | 67 min |
| Jun 21, 4:29 PM CDT | Tornado Warning | AMA | Ochiltree | 31 min |
| Jun 21, 5:02 PM CDT | Severe Thunderstorm Warning | AMA | Hansford, Moore | 58 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.