Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 36, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Mar 24, 1997, 11:18 PM CST for Tulsa County, Oklahoma. It was in force for 42 min. 4 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 24, 1997, 11:18 PM CST (05:18 UTC)
- Expired
- Mar 25, 1997, 12:00 AM CST
- In force
- 42 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Tulsa County, OK
The radar
The Tulsa radar (KINX), 34 km from the middle of the area, began a volume at 05:22 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 24, 11:32 PM CST | Thunderstorm Wind 65 | Collinsville, OK | |
| Mar 24, 11:38 PM CST | Hail 0.75 | Collinsville, OK | |
| Mar 24, 11:44 PM CST | Thunderstorm Wind 61 | Owasso, OK | |
| Mar 24, 11:44 PM CST | Hail 0.75 | Owasso, 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.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 24, 7:45 PM CST | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 5.3 hours before the alert went out and 166 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
- 1141 J/kg
- Mixed-layer CIN
- -136 J/kg
- Mixed-layer LCL
- 1360 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 205 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 250520 RRA SVRTUL OKC143-250600- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1118 PM CST MON MAR 24 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL MIDNIGHT CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST OKLAHOMA ...NORTHERN TULSA COUNTY AT 1115 PM...RADAR INDICATED A LINE OF THUNDERSTORMS MOVING ACROSS SOUTHEAST OSAGE COUNTY...TOWARD NORTHERN TULSA COUNTY. A SEVERE THUNDERSTORM WAS LOCATED NEAR SKIATOOK LAKE...MOVING EAST AT ABOUT 35 MPH. SKIATOOK AND SPERRY ARE IN THE PATH OF THIS STORM. GOLFBALL SIZED HAIL AND 70 MPH WINDS WERE REPORTED IN HOMINY AT 1110 PM. HAIL TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO 70 MPH CAN BE EXPECTED IN THE WARNED AREA. DURING THE STORM MOVE INDOORS AND STAY AWAY FROM WINDOWS. TO PROTECT YOURSELF FROM LIGHTNING DO NOT USE THE TELEPHONE OR HAND HELD ELECTRICAL APPLIANCES...UNLESS dIN AN EMERGENCY. MOTORISTS SHOULD BE ALERT FOR WATER ON ROADWAYS AND NEVER DRIVE ONTO A FLOODED ROAD. KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS. &
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.
NWS Tulsa, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 24, 9:44 PM CST, 1 hour 34 minutes earlier.
Area forecast discussion, Mar 24, 9:44 PM CST, 1 hour 34 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE TULSA OK 940 PM CST MON MAR 24 1997 STG/SVR TSTMS STRETCHING ALNG FNT ACRS ERN KS INTO N-CNTL AND NW OK THIS EVNG. FNT CONTG TO SAG SLOWLY TO THE SE AND WL BE ENTERING NWRN PART OF FA IN THE NXT HR OR SO. TIMING OF FNT IN PREV PKG STILL LOOKS GOOD...AND SHLD BE THRU MOST OF FA BY ARND 12Z. GUSTY SOUTH WINDS HAVE DIMINISHED A LTL THRU THE EVNG...ESPECIALLY OVR ERN AND SRN PARTS OF FA. WL UPDATE ZNS AND DROP WIND ADVSY FOR NOW...BUT WL HAVE TO WATCH FOR GUSTY NRLY WNDS BEHIND FNT AND MAY HAVE TO REISSUE FOR NWRN PART OF FA LATER. OTHERWISE DO NOT PLAN ON ANY OTHER BIG CHGS FOR NOW. WL LIKELY UPDATE ZNS AGN ARND MIDNIGHT AS FNT/SQUALL LN BEGINS TO PROGRESS ACRS THE AREA. DECIDED TO KEEP WIND ADVISORY IN EFFECT FOR MUCH OF NE OK TNGT AS MESONET SHOWING STG NRLY WNDS MOVG IN BHND FNT. ...04... .TUL... OK...WND ADVSY FOR TNGT ZNS 54>67. A.R...NONE.
In the hours before
Special weather statement, Mar 24, 6:07 PM CST, 5 hours 11 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-251200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TULSA OK 605 PM CST MON MAR 24 1997 NUMEROUS SEVERE THUNDERSTORMS ARE EXPECTED LATER THIS EVENING AND OVERNIGHT ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS. AT 600 PM...A SURFACE LOW PRESSURE SYSTEM WAS LOCATED OVER CENTRAL KANSAS WITH A COLD FRONT EXTENDING INTO THE OKLAHOMA AND TEXAS PANHANDLES. A DRYLINE WAS NOTED FROM CENTRAL KANSAS SOUTHWARD INTO WEST CENTRAL OKLAHOMA. STRONG SOUTHERLY WINDS BETWEEN 20 TO 35 MPH AHEAD OF THE COLD FRONT WILL CONTINUE TO INCREASE LOW LEVEL MOISTURE ACROSS THE AREA TONIGHT. THE ATMOSPHERE ACROSS THE REGION HAS BECOME VERY UNSTABLE DURING THE AFTERNOON HOURS. STRONG THUNDERSTORMS HAVE DEVELOPED RAPIDLY ACROSS KANSAS AND MISSOURI THIS EVENING...AND ARE EXPECTED TO CONTINUE DEVELOPING SOUTHWARD ALONG THE DRYLINE INTO OKLAHOMA. < STRONG STORMS ARE EXPECTED TO PUSH INTO EASTERN OKLAHOMA IN THE LATE EVENING HOURS AS THE COLD FRONT ADVANCES FURTHER INTO THE REGION. THE STRONGER STORMS SHOULD EVENTUALLY PUSH THEIR WAY INTO NORTHWEST ARKANSAS IN THE EARLY MORNING HOURS TUESDAY. AS THE THUNDERSTORMS DEVELOP SOUTH AND EASTWARD TONIGHT...THEY SHOULD EVENTUALLY EVOLVE INTO A SQUALL LINE. THE MAIN SEVERE THREAT FROM THESE THUNDERSTORMS WILL BE FROM VERY STRONG STRAIGHT LINE WINDS AND LARGE HAIL...ALTHOUGH A FEW TORNADOES WILL BE POSSIBLE. EMERGENCY MANAGEMENT AGENCIES AND STORM SPOTTER GROUPS ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS SHOULD MAINTAIN A HIGH STATE OF READINESS AND BE PREPARED FOR POSSIBLE ACTIVATION THIS EVENING AND TONIGHT. STAY TUNED FOR FURTHER UPDATED FORECASTS AND STATEMENTS CONCERNING TONIGHT'S SEVERE WEATHER THREAT.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 10:06 PM CST | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 54 min |
| Mar 24, 10:41 PM CST | Tornado Warning | TSA | Osage | 49 min |
| Mar 24, 10:50 PM CST | Severe Thunderstorm Warning | TSA | Pawnee | 40 min |
| Mar 24, 11:05 PM CST | Severe Thunderstorm Warning | TSA | Washington | 40 min |
| Mar 24, 11:24 PM CST | Severe Thunderstorm Warning | TSA | Nowata, Rogers | 66 min |
| Mar 24, 11:40 PM CST | Severe Thunderstorm Warning | TSA | Craig, Mayes | 50 min |
| Mar 24, 11:49 PM CST | Severe Thunderstorm Warning | TSA | Creek, Osage, Pawnee | 41 min |
| Mar 24, 11:58 PM CST | Severe Thunderstorm Warning | TSA | Tulsa | 47 min |
| Mar 25, 12:02 AM CST | Severe Thunderstorm Warning | TSA | Okfuskee | 58 min |
| Mar 25, 12:05 AM CST | Severe Thunderstorm Warning | TSA | Delaware, Ottawa | 55 min |
| Mar 25, 12:25 AM CST | Severe Thunderstorm Warning | TSA | Mayes | 35 min |
| Mar 25, 12:28 AM CST | Severe Thunderstorm Warning | TSA | Creek | 32 min |
| Mar 25, 12:39 AM CST | Severe Thunderstorm Warning | TSA | Okmulgee, Tulsa | 36 min |
| Mar 25, 12:45 AM CST | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 60 min |
| Mar 25, 12:50 AM CST | Severe Thunderstorm Warning | TSA | Delaware, Mayes | 40 min |
| Mar 25, 1:19 AM CST | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 56 min |
| Mar 25, 1:52 AM CST | Severe Thunderstorm Warning | TSA | Okmulgee | 68 min |
| Mar 25, 2:14 AM CST | Severe Thunderstorm Warning | TSA | McIntosh | 61 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 1997Every severe thunderstorm warning in 1997
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; radar from the NEXRAD Level II archive.