Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 74, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 13, 1992, 5:56 PM CDT for Pittsburg County, Oklahoma. It was in force for 44 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 13, 1992, 5:56 PM CDT (22:56 UTC)
- Expired
- May 13, 1992, 6:40 PM CDT
- In force
- 44 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Pittsburg County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 13, 5:57 PM CDT | Hail 2.75 | Pittsburg, OK | |
| May 13, 6:17 PM CDT | Hail 2.75 | Pittsburg, 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, 10.9 hours before the alert went out and 154 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
- 1245 J/kg
- Mixed-layer CIN
- -262 J/kg
- Mixed-layer LCL
- 867 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 38 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 132302 COR SVRTUL OKC121-140000- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 556 PM CDT WED MAY 13 1992 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 700 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES ... IN SOUTHEAST OKLAHOMA ...PITTSBURG COUNTY AT 555 PM A SEVERE THUNDERSTORM WAS OVER SOUTHERN PITTSBURG COUNTY 5 MILES SOUTHEAST OF MCALESTER. BASEBALL SIZE HAIL HAS FALLEN JUST SOUTH OF SAVANNA. ANOTHER DEVELOPING STORM WAS 2 MILES SOUTH OF HAYWOOD AND MAY SOON BECOME SEVERE. BOTH STORMS WERE MOVING NORTHEAST AT 15 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
Special weather statement, May 13, 1:37 PM CDT, 4 hours 19 minutes before
OKZ026>034-040-141200- EASTERN OKLAHOMA THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 135 PM CDT WED MAY 13 1992 A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PART OF SOUTHEAST OKLAHOMA UNTIL 7 PM THIS EVENING. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER MAINLY SOUTHEAST AND EAST CENTRAL OKLAHOMA THROUGH THIS EVENING... THIS AFTERNOON THE ATMOSPHERE OVER EASTERN OKLAHOMA WAS BECOMING INCREASINGLY UNSTABLE. ALTHOUGH NO WELL DEFINED BOUNDRY WAS PRESENT OVER THE AREA TO FOCUS THE DEVELOPMENT OF THUNDERSTORMS...THE REMNANTS OF A WEAK COOL FRONT OVER THE SOUTH...ALONG WITH AFTERNOON HEATING HAS BEEN SUFFICIENT TO ALLOW A FEW WIDELY SCATTERED SHOWERS AND THUNDERSTORMS TO DEVELOP. ADDITIONAL THUNDERSTORMS WILL REMAIN POSSIBLE THIS AFTERNOON...WITH THE MOST LIKELY AREAS FOR DEVELOPMENT OVER THE SOUTHEAST AND EAST CENTRAL COUNTIES WHERE THE INSTABILITY IS GREATER AND MORE LOW LEVEL MOISTURE IS PRESENT. THUNDERSTORMS WILL HAVE THE POTENTIAL TO QUICKLY BECOME SEVERE THIS AFTERNOON WITH THE MAIN THREAT BEING LARGE HAIL AND STRONG WINDS. ANY ACTIVITY IS EXPECTED TO DIMINISH LATER THIS EVENING AFTER THE LOSS OF DAYTIME HEATING. LATER TONIGHT AN UPPER LEVEL SYSTEM APPROACHING FROM THE ROCKIES COULD TRIGGER ADDITIONAL SHOWERS AND THUNDERSTORMS TO THE WEST AND NORTHWEST OF THE AREA WHICH COULD AFFECT EASTERN OKLAHOMA TOWARD DAYBREAK. CIVIL DEFENSE AND SPOTTER GROUPS OVER THE AREA SHOULD REMAIN ALERT AND BE READY FOR ACTIVATION IF NECESSARY LATER THIS AFTERNOON THROUGH THIS EVENING.
Special weather statement, May 13, 4:53 PM CDT, 1 hour 3 minutes before
OKZ033-132220- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 450 PM CDT WED MAY 13 1992 ...STRONG THUNDERSTORM MOVING INTO SOUTH CENTRAL PITTSBURG COUNTY... AT 450 PM A THUNDERSTORM WITH VERY HEAVY RAIN WAS CROSSING THE ATOKA-PITTSBURG COUNTY LINE. THE STORM WAS MOVING NORTHEAST AT 15 MILES AN HOUR TOWARD THE TOWNS OF PITTSBURG AND BLANCO. STAY INDOORS IF THIS STORM IS IN YOUR AREA AND LISTEN FOR LATER STATEMENTS.
Local storm report, May 13, 5:17 PM CDT, 39 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA, OK
516 PM CDT WED MAY 13 1992
TIME(CDT) COUNTY REPORT
515 PM PITTSBURG GOLFBALL SIZE HAIL AT PITTSBURG IN EXTREME
SOUTHERN PITTSBURG COUNTY.Nearby
Severe Thunderstorm Warnings in Oklahoma, 1992Every severe thunderstorm warning in 1992
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.