Alert archive / Arkansas / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 79, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Aug 19, 1987, 10:19 PM CDT for Benton County, Arkansas. It was in force for 56 min.
The area
The counties it named.
The facts
- Issued
- Aug 19, 1987, 10:19 PM CDT (03:19 UTC)
- Expired
- Aug 19, 1987, 11:15 PM CDT
- In force
- 56 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Benton 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, 3.3 hours before the alert went out and 74 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 KLIT 200319 SVRLIT ARC007-015-200415- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE LITTLE ROCK AR 1019 PM CDT WED AUG 19 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1115 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES OF ARKANSAS...BENTON AND CARROLL AT 1015 PM CDT...RADAR INDICATED SEVERE THUNDERSTORMS 15 MILES NORTH OF BENTONVILLE ARKANSAS AND 30 MILES NORTHWEST OF EUREKA SPRINGS ARKANSAS MOVING SOUTHEAST AT 40 MPH. WIND GUSTS OF 60 MPH HAVE BEEN REPORTED WITH THESE STORMS DURING THE PAST HOUR. THIS THUNDERSTORM WILL LIKELY PRODUCE WINDS IN EXCESS OF 60 MILES AN HOUR AND HAIL 3/4-INCH OR LARGER. SEEK SAFE SHELTER IMMEDIATELY. BOATERS ON LAKES IN THE WARNED AREA SHOULD SEEK SAFE HARBOR UNTIL THE STORM PASSES. IF YOU OBSERVE ANY LARGE HAIL OR STRONG WINDS, PLEASE REPORT THEM TO YOUR NEAREST LAW ENFORCEMENT AGENCY. 22
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, 44 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, 19 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, 11 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, 10:34 PM CDT | Severe Thunderstorm Warning | TSA | Madison, Washington | 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; the sounding from the Mesonet's radiosonde archive.