Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986
Severe Thunderstorm Warning 11, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 3, 1986, 10:23 PM CST for Sequoyah County, Oklahoma; Crawford County, Sebastian County, Arkansas. It was in force for 67 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
- Apr 3, 1986, 10:23 PM CST (04:23 UTC)
- Expired
- Apr 3, 1986, 11:30 PM CST
- In force
- 67 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Crawford County, AR, Sebastian County, AR, 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 |
|---|---|---|---|
| Apr 3, 10:47 PM CST | Thunderstorm Wind 50 | Sebastian, 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, 4.4 hours before the alert went out and 173 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
- 245 J/kg
- Mixed-layer CIN
- -8 J/kg
- Mixed-layer LCL
- 1060 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.7
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
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, Apr 3, 5:47 PM CST, 4 hours 36 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 545 PM CST THU APR 3 1986 ...VERY HEAVY RAINS IN PARTS OF TULSA... AT 545 PM TULSA RADAR CONTINUES SHOW A LINE OF SHOWERS AND THUNDERSTORMS FROM BARTLESVILLE SOUTH TO TULSA AND ON DOWN TO NEAR ARDMORE. MODERATE TO VERY HEAVY RAINFALL HAS BEEN REPORTED ALONG THE LINE. A FEW REPORTS OF SMALL SIZE HAIL...BUT LITTLE WIND OF CONSEQUENCE. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR PARTS OF CENTRAL AND EASTERN OKLAHOMA UNTIL 10 PM TONIGHT.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 10:23 PM CST | Severe Thunderstorm Warning | TSA | LeFlore | 67 min |
| Apr 4, 9:05 AM CST | Severe Thunderstorm Warning | TSA | Cherokee | 55 min |
| Apr 4, 9:13 AM CST | Severe Thunderstorm Warning | TSA | Sequoyah | 62 min |
| Apr 4, 10:24 AM CST | Severe Thunderstorm Warning | TSA | Pittsburg | 66 min |
| Apr 4, 11:31 AM CST | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 59 min |
| Apr 4, 12:18 PM CST | Severe Thunderstorm Warning | TSA | Sequoyah | 57 min |
| Apr 4, 12:31 PM CST | Severe Thunderstorm Warning | TSA | Latimer | 59 min |
| Apr 4, 12:47 PM CST | Severe Thunderstorm Warning | TSA | LeFlore | 58 min |
| Apr 4, 1:33 PM CST | Flash Flood Warning | TSA | Latimer, Pittsburg | 4 hr |
| Apr 4, 2:39 PM CST | Severe Thunderstorm Warning | TSA | Latimer | 66 min |
| Apr 4, 4:57 PM CST | Severe Thunderstorm Warning | TSA | LeFlore | 63 min |
| Apr 4, 11:21 AM CST | Severe Thunderstorm Warning | TSA | Benton, Washington | 69 min |
| Apr 4, 4:59 PM CST | Severe Thunderstorm Warning | TSA | Scott | 61 min |
Nearby
Severe Thunderstorm Warnings in Arkansas, 1986Severe 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.