Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 64, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 7:55 PM CDT for LeFlore County, Oklahoma. It was in force for 65 min.
The area
The counties it named.
The facts
- Issued
- May 14, 1986, 7:55 PM CDT (00:55 UTC)
- Expired
- May 14, 1986, 9:00 PM CDT
- In force
- 65 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County LeFlore County, OK
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, 0.9 hours before the alert went out and 237 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
- 1003 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1217 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 75 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSM 150055 SVRFSM OKC079-150200- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FORT SMITH AR 755 PM CDT WED MAY 14 1986 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY OF OKLAHOMA...LEFLORE AT 755 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 20 MILES SOUTHWEST OF POTEOU OKLAHOMA MOVING NORTHEAST AT 30 MPH. LARGE HAIL AND STRONG SURFACE WINDS WILL OCCUR WITH THIS STORM. IF YOU OBSERVE ANY LARGE HAIL OR STRONG WINDS PLEASE RELAY YOUR REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY. ALTHOUGH TORNADOES HAVE NOT BEEN DETECTED WITH THIS STORM..A TORNADO WATCH REMAINS IN EFFECT. TORNADOES CAN DEVELOP WITHOUT WARNING FROM SEVERE THUNDERSTORMS.
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, May 14, 3:54 PM CDT, 4 hours 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
330 PM CDT WED MAY 14 1986
TIME EVENT (CD=CIVIL DEFENSE. OHP=OKLA. HIGHWAY PATROL)
1215 PM CDT GOLFBALL SIZE HAIL REPORTED BY SPOTTERS AND PUBLIC
IN EASTSIDE OF BARTLESVILLE OKLAHOMA. WASHINGTON
COUNTY.
1228 PM CDT GOLFBALL SIZE HAIL REPORTED IN EAST SECTIONS OF
WASHINGTON COUNTY. REPORT BY HAM SPOTTERS.
1235 PM CDT ROTATION SPOTTED IN WALL CLOUD SOUTHEAST OF
BARTLESVILLE OKLAHOMA. REPORTED BY POLICE.
1238 PM CDT MARBLE SIZE HAIL REPORTED MIDWAY BETWEEN COPEN AND
WANN OKLAHOMA. REPORT BY HAM SPOTTERS IN
WASHINGTON COUNTY.
1239 PM CDT 1/2 TO ONE HAIL REPORTED BY PUBLIC AND SPOTTERS
1240 PM CDT GOLFBALL SIZE HAIL REPORTED BY POLICE AND HAMS IN
EASTERN PARTS OF BARTLESVILLE OKLAHOMA. WASHINGTON CO.
1245 PM CDT ROTATION IN WALL CLOUD JUST WEST OF NOWATA OKLAHOMA.
REPORTED BY HAM SPOTTERS. NOWATA COUNTY.
1248 PM CDT SOFTBALL SIZE HAIL JUST EAST OF COPEN OKLAHOMA.
REPORTED BY HAM SPOTTERS. WASHINGTON COUNTY.
1250 PM CDT WALL CLOUD INDICATED NORTHEAST OF BARTLESVILLE
OKLAHOMA. REPORTED BY SPOTTERS. WASHINGTON CO.
1254 PM CDT ROTATION IN WALL CLOUD NORTHWEST OF NOWATA OKLA-
HOMA IN NOWATA COUNTY. REPORT BY SPOTTERS.
100 PM CDT A LOT OF HAIL DAMAGE REPORTED BY SPOTTERS IN
THE AREA BETWEEN EASTERN BARTLESVILLE OKLAHOMA
EXTENDING INTO WESTERN NOWATA COUNTY. REPORT
THROUGH HAM NETWORK. WASHINGTON AND NOWATA CO.
105 PM CDT WALL CLOUD SPOTTED ABOUT 5 TO 7 MILES EAST OF
BARTLESVILLE, OKLAHOMA. BY SPOTTERS IN EAST
WASHINGTON COUNTY.
ADDITIONAL REPORTS TO FOLLOW SHORTLY.Local storm report, May 14, 4:26 PM CDT, 3 hours 29 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
405 PM CDT WED MAY 14 1986
TIME EVENT (CD=CIVIL DEFENSE. OHP=OKLA. HIGHWAY PATROL)
128 PM CDT POSSIBLE FUNNEL SPOTTED NEAR WANN OKLAHOMA. REPORT
BY HAM SPOTTERS. NOWATA COUNTY.
144 PM CDT GOLFBALL SIZE HAIL REPORTED NEAR LENAPAH OKLAHOMA.
REPORT FROM HAM SPOTTERS. NOWATA COUNTY.
200 PM CDT FUNNEL CLOUD REPORTED BY SPOTTERS DUE SOUTH OF
WANN OKLAHOMA. REPORTED HAM SPOTTERS. NOWATA CO.
211 PM CDT HEAVY ROTATION SEEN IN CLOUDS OVER WANN OKLAHOMA.
REPORT BY SPOTTERS. NOWATA COUNTY.
213 PM CDT TORNADO ON THE GROUND NORTH OF WANN OKLAHOMA.
REPORTED BY SPOTTERS AND OKLAHOMA HIGHWAY PATROL.
NOWATA COUNTY.
215 PM CDT FUNNEL CLOUD SIGHTED 48 DEGREES FROM INTERSECTION
OF HIGHWAYS 99 AND 60. SEEN BY SPOTTERS IN WASH-
INGTON COUTY. THIS IS THE WANN STORM. NOWATA CO.
223 PM CDT SHERIFF DEPT. REPORTS SEVERAL POWER POLES AND LINES
DOWN AROUND WANN OKLAHOMA. NOWATA COUNTY.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 7:12 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 63 min |
| May 14, 9:36 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 54 min |
| May 15, 5:11 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 64 min |
| May 15, 6:19 AM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 56 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1986Every severe thunderstorm warning in 1986
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.