Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 153, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 26, 1990, 7:29 AM CDT for Osage County, Oklahoma. It was in force for 46 min. 2 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
- May 26, 1990, 7:29 AM CDT (12:29 UTC)
- Expired
- May 26, 1990, 8:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Osage 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 |
|---|---|---|---|
| May 26, 7:30 AM CDT | Hail 0.75 | Osage, OK | |
| May 26, 8:25 AM CDT | Hail 0.75 | Osage, 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
Norman, OK (KOUN), launched 12:00Z, 0.5 hours before the alert went out and 181 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
- 1863 J/kg
- Mixed-layer CIN
- -391 J/kg
- Mixed-layer LCL
- 1411 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 202 m²/s²
- 0-3 km storm-relative helicity
- 211 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 261230 SVRTUL OKC113-261315- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 729 AM CDT SAT MAY 26 1990 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 815 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES ... IN NORTHEAST OKLAHOMA ...EASTERN OSAGE COUNTY AT 725 AM RADAR INDICATED A SEVERE THUNDERSTORM 4 MILES SOUTHWEST OF BARNSDALL. LARGE HAIL...DAMAGING WINDS...AS WELL AS TORRENTIAL RAINFALL IS LIKELY WITH THIS STORM AS IT MOVES TOWARD THE EAST AT 20 MILES AN HOUR. BARNSDALL AND AVANT ARE IN THE PATH OF THIS STORM. WHEN THUNDERSTORMS ARE OCCURRING...PEOPLE SHOULD MOVE INSIDE A STRONG BUILDING. DO NOT STAND BY WINDOWS. DON'T USE TELEPHONES OR ELECTRICAL APPLIANCES UNLESS IN AN EMERGENCY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD NOT DRIVE INTO LOW WATER CROSSINGS.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 5:29 AM CDT | Severe Thunderstorm Warning | TSA | Osage | 61 min |
| May 26, 6:32 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 58 min |
| May 26, 8:00 AM CDT | Severe Thunderstorm Warning | TSA | Rogers | 45 min |
| May 26, 8:12 AM CDT | Severe Thunderstorm Warning | TSA | Osage, Washington | 48 min |
| May 26, 8:48 AM CDT | Severe Thunderstorm Warning | TSA | Nowata | 42 min |
| May 26, 8:59 AM CDT | Severe Thunderstorm Warning | TSA | Washington | 46 min |
| May 26, 1:20 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 55 min |
| May 26, 1:20 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 55 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1990Every severe thunderstorm warning in 1990
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.