Alert archive / Arkansas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 80, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 19, 1987, 10:34 PM CDT for Madison County, Washington County, Arkansas. It was in force for 56 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
- Aug 19, 1987, 10:34 PM CDT (03:34 UTC)
- Expired
- Aug 19, 1987, 11:30 PM CDT
- In force
- 56 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Madison County, AR, Washington County, AR
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 |
|---|---|---|---|
| Aug 19, 11:15 PM CDT | Thunderstorm Wind 0 | Washington, AR |
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
Springfield, MO (KUMN), launched 00:00Z, 3.6 hours before the alert went out and 102 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
- 255 J/kg
- Mixed-layer CIN
- -176 J/kg
- Mixed-layer LCL
- 2100 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KFSM 200334
SVRFSM
ARC087-143-200430-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1034 PM CDT WED AUG 19 1987
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1130 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN WEST ARKANSAS
...MADISON...WASHINGTON
AT 1035 A LINE OF SEVERE THUNDERSTORSMS WERE MOVING INTO WASHINGTON
AND MADISON COUNTIES OF ARKANSAS MOVING SOUTHEAST AT 40 MPH.
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.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, Aug 19, 9:35 PM CDT, 59 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA, OK 934 PM CDT WED AUG 19 1987 ...THUNDERSTORMS ARE MOVING OUT OF KANSAS INTO NORTHEASTERN OKLAHOMA... AT 9 30 PM THE TULSA WEATHER RADAR INDICATED INTENSE THUNDERSTORMS IN EXTREME SOUTHEASTERN KANSAS AND NORTHEASTERN OKLAHOMA. THE STRONGEST OF THESE THUNDERSTORMS WAS JUST NORTH AND EAST OF MIAMI OKLAHOMA AND WAS MOVING INTO SOUTHWESTERN MISSOURI. THESE THUNDERSTORMS WILL LIKELY PRODUCE VERY HEAVY RAIN...HAIL...AND WIND GUSTS TO 50 MPH. BOTH HAIL AND VERY STRONG WINDS WERE REPORTED WITH THESE STORMS AS THEY MOVED ACROSS CHANUTE KANSAS WITHIN THE PAST HOUR. PERSONS IN MIAMI AND VINITA SHOULD REMAIN ALERT TO THE POSSIBLITY OF THESE STRONG THUNDERSTORMS AND SHOULD TAKE COVER IF THREATENING WEATHER APPROACHES.
Local storm report, Aug 19, 10:00 PM CDT, 34 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
958 PM CDT WED AUG 19 1987
TIME/CDT COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L)
948 PM OTTAWA CD DIRECTOR REPORTED WINDS OF 65 MPH W9ITH
MANY WINDOWS BLOWN OUT OF DOWNTOWN AREA.
TREES DOWN AND POWER LINE DAMAGE ALSO REPORTED.Local storm report, Aug 19, 10:08 PM CDT, 26 minutes before
STORM REPORT NATIONAL WEATHER SERVICE TULSA, OK 1007 PM CDT WED AUG 19 1987 TIME/CDT COUNTY EVENT (CD=CIVIL DEFENSE OHP=OK HIGHWAY PAT'L) 959 PM OTTAWA SPOTTER IN PITCHER REPORTS WINDS TO 6G0 MPH.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 10:19 PM CDT | Severe Thunderstorm Warning | TSA | Benton | 56 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.