Alert archive / Texas / Tornado Warnings in 1987
Tornado Warning 40, NWS Amarillo, TX
NWS Amarillo, TX issued this tornado warning at Sep 11, 1987, 10:56 PM CDT for Hansford County, Texas. It was in force for 64 min.
The area
The counties it named.
The facts
- Issued
- Sep 11, 1987, 10:56 PM CDT (03:56 UTC)
- Expired
- Sep 12, 1987, 12:00 AM CDT
- In force
- 64 min
- Issued by
- NWS Amarillo, TX
- Area
- Whole counties
County Hansford 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, 3.9 hours before the alert went out and 121 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
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KAMA 120356
TORAMA
TXC195-120500-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
1056 PM CDT FRI SEP 11 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL MIDNIGHT CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
IN THE TEXAS PANHANDLE
...HANSFORD
AT 1040 PM CDT HANSFORD COUNTY SHERRIF OFFOCE REPORTED A TORNADO ON
THE GROUND 2 AND ONE HALF MILES EAST OF SPERMAN MOVING SOUTHEAST
AT 10 MILES AN HOUR iIF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST
BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE.
IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM
SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETbS...PILLOWS...
OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.What forecasters said that day
The local office's own words before this tornado 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, 1 hour 9 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 SMA LL HAIL.
Special weather statement, Sep 11, 9:48 PM CDT, 1 hour 8 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 WI ND AND SOME SMALL HAIL.
Special weather statement, Sep 11, 9:54 PM CDT, 1 hour 2 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, 11 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.
The office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 1:24 AM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Briscoe, Donley | 66 min |
| Sep 12, 2:16 AM CDT | Severe Thunderstorm Warning | AMA | Castro | 59 min |
Nearby
Tornado Warnings in Texas, 1987Every tornado warning in 1987Tornadoes 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.