Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 2, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 10, 1986, 12:51 AM CST for LeFlore County, Sequoyah County, Oklahoma. It was in force for 54 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
- Mar 10, 1986, 12:51 AM CST (06:51 UTC)
- Expired
- Mar 10, 1986, 1:45 AM CST
- In force
- 54 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties LeFlore County, OK, Sequoyah 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 |
|---|---|---|---|
| Mar 10, 12:55 AM CST | Thunderstorm Wind 0 | Sequoyah, OK | |
| Mar 10, 1:17 AM CST | Hail 0.75 | Le Flore, OK | |
| Mar 10, 1:20 AM CST | Thunderstorm Wind 0 | Le Flore, 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
Springfield, MO (KUMN), launched 00:00Z, 6.9 hours before the alert went out and 207 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
- 1521 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 126 m²/s²
- 0-3 km storm-relative helicity
- 242 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KFSM 100651 SVRFSM OKC079-135-100745- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE FORT SMITH AR 1251 AM CST MON MAR 10 1986 THE NATIONAL WEATHER SERVICE HAS ISSUEMD A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 145 AM CST FOR PEOPLE IN THE FOLLOWING COUNTIES OF OKLAHOMA...LEFLORE AND SEQUOYAH
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 9, 9:50 PM CST | Severe Thunderstorm Warning | TSA | Pawnee | 50 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.