Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1989
Severe Thunderstorm Warning 49, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 1989, 1:48 AM CDT for Haskell County, Oklahoma. It was in force for 42 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
- May 9, 1989, 1:48 AM CDT (06:48 UTC)
- Expired
- May 9, 1989, 2:30 AM CDT
- In force
- 42 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Haskell 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 9, 2:28 AM CDT | Hail 1.75 | Haskell, 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 00:00Z, 6.8 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
- 4626 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 1357 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 5.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KTUL 090650
SVRTUL
OKC061-090730-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
148 AM CDT TUE MAY 9 1989
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 230 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTHEAST OKLAHOMA
...EASTERN HASKELL
AT 0145 AM CDT A SEVERE THUNDERSTORM WAS LOCATED NEAR TAMAHA OK MOVING
SOUTHEAST AT 35 MPH.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 60 MPH...
LARGE HAIL...DEADLY LIGHTNING AND VERY HEAVY RAIN. FOR YOUR
PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR
HOME OR BUSINESS.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 8, 8:48 PM CDT, 5 hours before
STORM REPORT NATIONAL WEATHER SERVICE TULSA, OK 848 PM CDT MON MAY 08 1989 TIME(CDT) COUNTY REPORT 2025 PM ADAIR NICKEL SIZE HAIL FELL AT WATTS.
Local storm report, May 8, 11:44 PM CDT, 2 hours 4 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
1143 PM CDT MON MAY 08 1989
TIME(CDT) COUNTY REPORT
2044 PM ADAIR QUARTER SIZE HAIL FELL 2 MILES WEST OF
WESTVILLE.
2100 PM ADAIR QUARTER SIZE HAIL 3 MILES NORTH OF WESTVILLE.
2135 PM ADAIR NICKEL SIZE HAIL FELL 2 MILES WEST OF
WESTVILLE.
2215 PM ADAIR DIME AND NICKEL SIZE HAIL FELL 2 MILES EAST OF
STILWELL.
2000-2030PM DELAWARE A TORNADO OR STRONG WINDS DAMAGED TWO HOUSES..
DAMAGED OR DESTROYED A BARN AND DESTROYED A
MOBILE HOME. DETAILS ARE SKETCHY AT THIS TIMEx
AND MORE WILL FOLLOW AS WE RECEIVE THEM. NO
INJURIES WERE REPORTED.The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 8:14 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 31 min |
| May 8, 8:58 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 47 min |
| May 8, 10:06 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 39 min |
| May 8, 10:11 PM CDT | Severe Thunderstorm Warning | TSA | Adair | 49 min |
| May 8, 10:41 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 64 min |
| May 8, 10:49 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 56 min |
| May 8, 11:02 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 43 min |
| May 8, 11:45 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 60 min |
| May 9, 2:05 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 40 min |
| May 9, 2:40 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 65 min |
| May 9, 2:46 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 44 min |
| May 9, 3:30 AM CDT | Severe Thunderstorm Warning | TSA | Latimer | 45 min |
| May 9, 3:42 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 63 min |
| May 9, 4:06 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Muskogee | 54 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1989Every severe thunderstorm warning in 1989
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.