Alert archive / Arkansas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 97, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Sep 15, 1987, 11:23 PM CDT for Crawford County, Sebastian County, Arkansas. It was in force for 67 min.
The area
The counties it named.
The facts
- Issued
- Sep 15, 1987, 11:23 PM CDT (04:23 UTC)
- Expired
- Sep 16, 1987, 12:30 AM CDT
- In force
- 67 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Crawford County, AR, Sebastian County, AR
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
Springfield, MO (KUMN), launched 00:00Z, 4.4 hours before the alert went out and 172 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
- 346 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 238 m²/s²
- 0-3 km storm-relative helicity
- 190 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSM 160423
SVRFSM
ARC033-131-160530-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1123 PM CDT TUE SEP 15 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN WEST ARKANSAS
...CRAWFORD...SEBASTIAN
FORT SMITH RADAR INDICATED A SEVERE THUNDERSTORM OVER FORT SMITH
ARKANASAS MOVING EAST NORTHEAST AT 25 MPH.
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
Local storm report, Sep 15, 10:02 PM CDT, 1 hour 21 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
1002 PM CDT TUE SEP 15 1987
TIME/CST COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
655 PM CREEK DIME SIZE HAIL REPORTED NEAR OILTON OKLAHOMA.
PEAK WINDS OF 40 MPH. FROM POLICE.
730 PM CREEK NORTH OF SAPULPA OKLAHOMA DIME SIZE HAIL.
REPORT FROM STORM SPOTTERS.
815 PM CREEK WESTSIDE OF BRISTOW OKLAHOMA. HIGH WINDS
DOWN POWER LINES AND TREES. FROM SHERIFF OF.
830 PM CREEK FUNNEL CLOUDS REPORTED BY SAPULPA CIVIL DEF.
SPOTTERS. NO TOUCH DOWNS REPORTED.
835 PM CREEK SPOTTERS 2 MILES NORTH OF SAPUPLA OKLAHOMA
ON HIGHWAY 97 REPORT WIND GUST TO 55 MPH.
850 PM TULSA SCATTERED REPORTS OF TREES AND POWER LINES
DOWN MAINLY IN WEST AND SOUTH TULSA OKLAHOMA.
REPORT FROM SPOTTERS A8ND POLICE.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 15, 10:15 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 60 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 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.