Alert archive / Texas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 76, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Sep 12, 1987, 2:16 AM CDT for Castro County, Texas. It was in force for 59 min.
The area
The counties it named.
The facts
- Issued
- Sep 12, 1987, 2:16 AM CDT (07:16 UTC)
- Expired
- Sep 12, 1987, 3:15 AM CDT
- In force
- 59 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, 7.3 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.
- Mixed-layer CAPE
- 1560 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 1352 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 74 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 3.7
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, Sep 11, 9:47 PM CDT, 4 hours 29 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 930 PM CDT FRI SEP 11 1987 ...VERY STRONG THUNDERSTORMS DEVELOPING ACROSS THE NORTHEAST PANHANDLE.. AT 9.30 PM CDT PERRYTON POLICE DEPTMENT REPORTED PEA SIZE HAIL SIX MILES SOUTH OF PERRYTON. AT 9.30 PM CDT RADAR SHOWED VERY HEAVY THUNDERSTORMS ACROSS THE EASTERN PORTION OF THE OKLAHOMA AND THE NORTHEAST TEXAS PANHANDLE. ELSEWHERE SHOWERE AND A FEW STRONG THUNDERSTORMS WERE INDICATED IN EASTERN NEW MEXICO NEAR CENTERVILLE AND JUST SOUTH OF TUCUMCARI. MOVEMENT WAS SOUTHEAST AROUND 12 MILES AN HOUR. DURING THE PASSAGE OF THESE THUNDERSTORMS ONE CAN EXCEPT HEAVY RAINFALL STRONG GUSTY WIND AND SOME SMALL HAIL.
Special weather statement, Sep 11, 9:48 PM CDT, 4 hours 28 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 930 PM CDT FRI SEP 11 1987 ...VERY STRONG THUNDERSTORMS DEVELOPING ACROSS THE NORTHEAST PANHANDLE.. AT 9.30 PM CDT PERRYTON POLICE DEPARTTMENT REPORTED PEA SIZE HAIL SIX MILES SOUTH OF PERRYTON. AT 9.30 PM CDT RADAR SHOWED VERY HEAVY THUNDERSTORMS ACROSS THE EASTERN PORTION OF THE OKLAHOMA AND THE NORTHEAST TEXAS PANHANDLE. ELSEWHERE SHOWERE AND A FEW STRONG THUNDERSTORMS WERE INDICATED IN EASTERN NEW MEXICO NEAR CENTERVILLE AND JUST SOUTH OF TUCUMCARI. MOVEMENT WAS SOUTHEAST AROUND 12 MILES AN HOUR. DURING THE PASSAGE OF THESE THUNDERSTORMS ONE CAN EXCEPT HEAVY RAINFALL STRONG GUSTY WIND AND SOME SMALL HAIL.
Special weather statement, Sep 11, 9:54 PM CDT, 4 hours 22 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 930 PM CDT FRI SEP 11 1987 ...VERY STRONG THUNDERSTORMS DEVELOPING ACROSS THE NORTHEAST PANHANDLE.. AT 9.30 PM CDT PERRYTON POLICE DEPARTTMENT REPORTED PEA SIZE HAIL SIX MILES SOUTH OF PERRYTON. AT 9.30 PM CDT RADAR SHOWED VERY HEAVY THUNDERSTORMS ACROSS THE EASTERN PORTION OF THE OKLAHOMA PANHANDLE AND THE NORTHEAST TEXAS PANHANDLE. ELSEWHERE SHOWERS AND A FEW STRONG THUNDERSTORMS WERE INDICATED IN EASTERN NEW MEXICO NEAR CENTERVILLE AND JUST SOUTH OF TUCUMCARI. MOVEMENT WAS SOUTHEAST AROUND 12 MILES AN HOUR. DURING THE PASSAGE OF THESE THUNDERSTORMS ONE CAN EXCEPT HEAVY RAINFALL STRON%G GUSTY WIND AND SOME SMALL HAIL.
Special weather statement, Sep 11, 10:45 PM CDT, 3 hours 31 minutes before
SPECIAL WEATHER STATEMENT AND RADAR SUMMARY NATIONAL WEATHER SERVICE AMARILLO TX 1030 PM CDT FRI SEP 11 1987 ...VERY STRONG THUNDERSTORMS CONTINUED ACROSS THE NORTHEAST CORNER OF TEXAS PANHANDLE AND THE EASTERN HAFL OF THE OKLAHOMA PANHANDLE. AT 10.05 PM CDT SPERMAN POLICE DEPARTTMENT REPORTED PEA SIZE HAIL IN THE CITY. AND AT 10.00 GUYMON RADIO STATION REPORTED VERY HEAVY RAIN AND SMALL HAIL ABOUT TWO MILES NORTH OF GUYMON. AT 10.30 PM CDT RADAR SHOWED VERY HEAVY THUNDERSTORMS ACROSS THE NORTHERN TEXAS PANHANDLE AND THE EASTERN OKLAHOMA PANHANDLE. A FEW SHOWERS WERE NOTED IN EASTERN NEW MEXICO AROUND TUCUMCARI. MOVEMENT WAS SOUTHEAST AROUND 10 MILES AN HOUR. PERSON IN WTHE PATH OF THESE THUNDERSTORMS CAN EXCEPT BRIEF PERIODS OF HEAVY RAINFALL..STRONG GUSTY WINDS AND SOME SMALL HAIL.
Special weather statement, Sep 11, 11:47 PM CDT, 2 hours 29 minutes before
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</html>The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 11, 10:56 PM CDT | Tornado Warning | AMA | Hansford | 64 min |
| Sep 12, 1:24 AM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Briscoe, Donley | 66 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; the sounding from the Mesonet's radiosonde archive.