Alert archive / Oklahoma / Tornado Warnings in 1986
Tornado Warning 39, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Oct 1, 1986, 8:00 PM CDT for Harmon County, Oklahoma. It was in force for 40 min. 3 reports 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
- Oct 1, 1986, 8:00 PM CDT (01:00 UTC)
- Expired
- Oct 1, 1986, 8:40 PM CDT
- In force
- 40 min
- Issued by
- NWS Norman, OK
- Area
- Whole counties
County Harmon County, OK
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 |
|---|---|---|---|
| Oct 1, 8:15 PM CDT | Tornado F1 | Harmon, OK | |
| Oct 1, 8:20 PM CDT | Hail 0.75 | Harmon, OK | |
| Oct 1, 8:20 PM CDT | Hail 0.75 | Harmon, OK |
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
Fort Sill, OK (KFSI), launched 00:00Z, 1.0 hours before the alert went out and 133 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1957 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 96 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAAOO KOKC 020100
TOROKC
OKC057-020140-
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
800 PM CDT WED OCT 1 1986
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL 840 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
IN SOUTHWEST OKLAHOMA
..NORTHERN HARMON
AT 8PM A TORNADO WAS REPORTED BY THE HIWAY PATROL 8 MILES WEST OF
MCKNIGHT OKLAHOMA MOVING NORTHEAST AT 35 MPH. VINSON IS IN THE PATH
OF THIS TORNADO.
THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE. OTHERWISE, GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES
FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.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, Oct 1, 4:53 PM CDT, 3 hours 7 minutes before
SPECIAL WEATHER AND FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 440 PM CDT WED OCT 1 1986 ...THE FLASH FLOOD WATCH IS NO LONGER IN EFFECT FOR OKLAHOMA... THE HEAVY THUNDERSTORMS WHICH PROMPTED THE ISSUANCE OF THE FLASH FLOOD WATCH TODAY FOR PORTIONS OF THE STATE HAVE ENDED OVER ALL BUT THE EXTREME SOUTHEAST. ALTHOUGH THE HEAVY RAINS HAVE ENDED OVER MOST OF THE STATE MANY RIVERS AND STREAMS REMAIN AT OR NEAR FLOOD STAGE FROM THE HEAVY RAINFALL OF THE PAST FEW DAYS. THIS RESPITE FROM THE HEAVY RAINFALL MAY TURN OUT TO BE BRIEF. AN UPPER LEVEL STORM SYSTEM WILL BE APPROACHING THE STATE FROM THE SOUTHWEST THURSDAY AND THIS MAY BRING ANOTHER ROUND OF THUNDERSTORMS TO THE STATE. THE THREAT OF HEAVY RAIN WILL BE ENHANCED AS MOISTURE FROM THE REMNANTS OF HURRICANE MOVE NORTHEASTWARD TOWARD THE STATE.
Special weather statement, Oct 1, 5:13 PM CDT, 2 hours 47 minutes before
SPECIAL WEATHER AND FLASH FLOOD STATEMENT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 440 PM CDT WED OCT 1 1986 ...THE FLASH FLOOD WATCH IS NO LONGER IN EFFECT FOR OKLAHOMA... THE HEAVY THUNDERSTORMS WHICH PROMPTED THE ISSUANCE OF THE FLASH FLOOD WATCH TODAY FOR PORTIONS OF THE STATE HAVE ENDED OVER ALL BUT THE EXTREME SOUTHEAST. ALTHOUGH THE HEAVY RAINS HAVE ENDED OVER MOST OF THE STATE MANY RIVERS AND STREAMS REMAIN AT OR NEAR FLOOD STAGE FROM THE HEAVY RAINFALL OF THE PAST FEW DAYS. THIS RESPITE FROM THE HEAVY RAINFALL MAY TURN OUT TO BE BRIEF. AN UPPER LEVEL STORM SYSTEM WILL BE APPROACHING THE STATE FROM THE SOUTHWEST THURSDAY AND THIS MAY BRING ANOTHER ROUND OF THUNDERSTORMS TO THE STATE. THE THREAT OF HEAVY RAIN WILL BE ENHANCED AS MOISTURE FROM THE REMNANTS OF HURRICANE PAINE MOVE NORTHEASTWARD TOWARD THE STATE.
Special weather statement, Oct 1, 5:40 PM CDT, 2 hours 20 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE WICHITA FALLS TX 540 PM CDT WED OCT 1 1986 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR FOARD...KNOX...HARDEMAN BAYLOR AND WILBARGER COUNTIES OF NORTH CENTRAL TEXAS FROM 6PM TO 11 PM CDT... AT 535 PM CDT NO PRECIPITATION WAS OCCURRING IN ANY OF THE ABOVE COUNTIES. HOWEVER VERY STRONG THUNDERSTORMS WERE DEVELOPING IN THE TEXAS SOUTH PLAINS NEAR LUBBOCK. THESE STORMS WERE MOVING TO THE NORTHEAST AT 30 MPH. ADDITIONAL STATEMENTS WILL BE ISSUED THROUGHOUT THE EVENING.
Special weather statement, Oct 1, 6:26 PM CDT, 1 hour 34 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 620 PM CDT WED OCT 1 1986 STRONG THUNDERSTORMS MOVING ACROSS PARTS OF SOUTHEASTERN OKLAHOMA THIS AFTERNOON HAVE PRODUCED VERY HEAVY RAINFALL. RADAR ESTIMATES IMPLY THAT TOTALS OF 4 TO 5 INCHES MAY HAVE OCCURRED IN A 10 TO 15 MILE WIDE BAND EXTENDING FROM NEAR COLBERT IN SOUTHWEST BRYAN COUNTY TO 10 MILES SOUTHEAST OF ATOKA IN SOUTHEAST ATOKA COUNTY. DURANT REPORTED 4.7 INCHES OF RAIN TODAY...MOST OF WHICH FELL BETWEEN 2 PM AND 4 PM. THE THUNDERSTORMS OVER SOUTHEASTERN OKLAHOMA HAVE DIMINISHED IN INTENSITY DURING THE PAST TWO HOURS...AND ADDITIONAL HEAVY RAINFALL IN THAT AREA DOES NOT APPEAR LIKELY. PERSONS PLANNING TRAVEL IN THE AREA AFFECTED BY THE VERY HEAVY RAINFALL SHOULD BE PREPARED FOR SOME SMALL STREAM FLOODING AND PONDING OF WATER IN LOW LYING AREAS. WATER MAY BE FLOWING OVER SOME SECONDARY ROADS... AND MOTORISTS SHOULD AVOID DRIVING INTO WATER OF UN+KNOWN DEPTH.
Local storm report, Oct 1, 7:05 PM CDT, 55 minutes before
STORM REPORT...ADDITONAL REPORTS NATIONAL WEATHER SERVICE OKLAHOMA CITY OK 710 PM CDT WED OCT 1 1986 DELAYED REPORTS FROM MONDAY NIGHT SEPT 29TH TIME(CDT) COUNTY REPORT 1900 CUSTER 60 MPH WIND 5 S. OF LEEDY 1905 WOODWARD WIND DAMAGE TO ROOF, BARN, TREES 12 ENE OF VICI 1910 DEWEY 80 TO 90 MPH WIND DAMAGED A BARN 11 S OF VICI 1930 MAJOR HAIL GREATER THAN NICKLE SIZE 8 E OF BOISE JCT 2200 GRAQNT DIME SIZE HAIL 3 S. OF LAMONT 2200 KINGFISHER 60 MPH WIND 4 WEST OF LOYAL
Local storm report, Oct 1, 7:15 PM CDT, 45 minutes before
STORM REPORT...ADDITONAL REPORTS
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
710 PM CDT WED OCT 1 1986
DELAYED REPORTS FROM TUESDAY NIGHT SEPT 30TH AND WEDNESDAY MORNING
OCTOBER 1ST.
TIME(CDT) COUNTY REPORT
2240(30TH) CADDO NICKLE SIZE HAIL AT BINGER
0000(1ST) OKLAHOMA PALM SIZE HAIL 29TH AND EASTERN(OKC)
0006 OKLAHOMA 80 MPH WIND SE 89TH AND SUNNEYLANE(OKC)
0020 LINCOLN 60 MPH WIND AT PRAGUE
0023 OKLAHOMA OUT BUILDINGS OVERTURNED 21ST AND MACARTHER(OKC)
0030 POTTAWATOMIE 60 TO 65 MPH WIND BLEW TREES DOWN, POWER OUTAGE
AT SHAWNEE.
0110 SEMINOLE 60-65 MPH WIND BLEW DOWN TREES, ROOF DAMAGE SW OF
W SEMINOLE.The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 1, 8:04 PM CDT | Severe Thunderstorm Warning | OUN | Beckham | 56 min |
| Oct 1, 8:18 PM CDT | Tornado Warning | OUN | Beckham | 27 min |
| Oct 1, 8:37 PM CDT | Tornado Warning | OUN | Beckham, Greer | 38 min |
| Oct 1, 9:06 PM CDT | Tornado Warning | OUN | Greer | 34 min |
| Oct 1, 9:27 PM CDT | Tornado Warning | OUN | Custer, Washita | 33 min |
| Oct 1, 9:48 PM CDT | Severe Thunderstorm Warning | OUN | Ellis, Woodward | 47 min |
| Oct 1, 9:59 PM CDT | Tornado Warning | OUN | Kiowa, Washita | 41 min |
| Oct 2, 9:04 AM CDT | Flash Flood Warning | OUN | Canadian, Logan, Oklahoma | 116 min |
| Oct 2, 9:04 AM CDT | Flash Flood Warning | OUN | Cleveland | 116 min |
| Oct 2, 10:16 AM CDT | Tornado Warning | OUN | Logan, Oklahoma | 59 min |
| Oct 2, 10:29 AM CDT | Flash Flood Warning | OUN | Kingfisher | 2 hr |
| Oct 2, 10:36 AM CDT | Flash Flood Warning | OUN | Grady | 54 min |
| Oct 2, 11:08 AM CDT | Tornado Warning | OUN | Logan, Payne | 37 min |
| Oct 2, 11:27 AM CDT | Flash Flood Warning | OUN | Garfield | 93 min |
| Oct 2, 1:31 PM CDT | Flash Flood Warning | OUN | Canadian, Kingfisher | 119 min |
| Oct 2, 1:51 PM CDT | Flash Flood Warning | OUN | Kay, Noble | 2 hr |
| Oct 2, 2:49 PM CDT | Flash Flood Warning | OUN | Logan, Oklahoma | 3 hr |
| Oct 2, 3:28 PM CDT | Flash Flood Warning | OUN | Canadian, Kingfisher | 3 hr |
| Oct 2, 4:12 PM CDT | Tornado Warning | OUN | Logan | 33 min |
| Oct 2, 4:27 PM CDT | Flash Flood Warning | OUN | Grady | 93 min |
| Oct 2, 5:03 PM CDT | Tornado Warning | OUN | Logan | 32 min |
| Oct 2, 5:35 PM CDT | Flash Flood Warning | OUN | Cleveland, McClain | 115 min |
| Oct 2, 5:35 PM CDT | Tornado Warning | OUN | Cleveland, McClain | 30 min |
| Oct 2, 6:05 PM CDT | Severe Thunderstorm Warning | OUN | Lincoln, Pottawatomie | 40 min |
| Oct 2, 6:28 PM CDT | Tornado Warning | OUN | Lincoln, Pottawatomie | 32 min |
Nearby
Tornado Warnings in Oklahoma, 1986Every tornado warning in 1986Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.