Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 112, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 5, 1997, 12:24 PM CDT for Washington County, Oklahoma. It was in force for 51 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 5, 1997, 12:24 PM CDT (17:24 UTC)
- Expired
- May 5, 1997, 1:15 PM CDT
- In force
- 51 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
County Washington County, OK
The radar
The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 17:25 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.
The nearest sounding before it
Lamont, OK (KLMN), launched 12:00Z, 5.4 hours before the alert went out and 141 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1659 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 502 m²/s²
- 0-3 km storm-relative helicity
- 713 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KTUL 051724 RRA SVRTUL OKC147-051815- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1224 PM CDT MON MAY 5 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 115 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN NORTHEAST OKLAHOMA ...NORTHERN WASHINGTON COUNTY AT 1222 PM...RADAR SHOWED A SEVERE THUNDERSTORM ON THE OKLAHOMA...KANSAS BORDER 7 MILES NORTHWEST OF COPAN. THE STORM WAS MOVING SOUTHEAST AT 30 MPH AND WILL MOVE ACROSS THE NORTHERN PART OF COPAN LAKE AND INTO AREAS NORTH OF HIGHWAY 10 IN NORTHERN WASHINGTON COUNTY. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 50 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 IN 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 May 5, 10:25 AM CDT, 1 hour 59 minutes earlier.
Area forecast discussion, May 5, 10:25 AM CDT, 1 hour 59 minutes before
FPUS3 KTUL 050907 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1025 AM CDT MON MAY 5 1997 UPDATED ZNS WITH SCT SHRA/TS IN FAR SE OK AND MOVING INTO AREAS N OF TUL ALONG KS BORDER. ELEVATED CONVECTION USUALLY FALLS APART BY MIDDAY...BUT NEW CONVECTION HAS DVLPD ALONG H7 TROF AXIS MOVING INTO OSAGE COUNTY AND SHOWS UP WELL ON VSBL SAT PICS AND WE CAN SEE THE LN OF CU OUT THE WINDOW. PROFILERS SHOW SHARP H7 TROF ALNG KS/OK BORDER BUT FEATURE IS FAIRLY SHALLOW WITH H5 WINDS NOT INDICATING MUCH OF A WAVE AT ALL. H85 MOIST AXIS EXTENDED FROM SW TO NE ACRS OK WITH DWPTS UP TO 7 DEG C. SFC DWPTS ARE IN LOWER 50S WITH SFC FNT STILL N OF FA. SKY MOSUNNY BETWEEN TUL/MLC SO TMPS WILL WARM INTO LOWER 80S AHEAD OF H7 TROF AXIS THAT IS PROGGED TO WEAKEN AND MOVE SE. SCT SHOWERS IN SE OK ARE IN AREA WITH GUD H85 WAA/MOIST ADVCTN AND EXPECT THESE TO GRADUALLY DIMINISH DURING THE NEXT FEW HRS AS THEY MOVE SE. STRONGEST CAP ON SFC BASED CONVECTION IS EXPECTED TO BE IN SE OK LATE TODAY. MENTIONS SCT PCP IN AREAS N/E OF TUL AND IN AREAS S/E OF MLC. RAISED POPS SOME INBETWEEN. KEPT MAXES AND WNDS ABT AS IS. MAY UPDATE ZNS AGAIN EARLY THIS AFTERNOON. /13 .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, May 5, 11:45 AM CDT, 39 minutes before
OKZ054>076-ARZ001-002-010-011-019-029-061200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 1145 AM CDT MON MAY 5 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS EVENING OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS... MAINLY NORTH OF A OKEMAH OKLAHOMA TO BERRYVILLE ARKANSAS LINE. A WEAK COLD FRONT WAS CURRENTLY LOCATED FROM CHANUTE KANSAS TO NEAR ENID AND IS EXPECTED TO MOVE INTO NORTHEASTERN OKLAHOMA THIS AFTERNOON. AHEAD OF THIS FRONT...THE ATMOSPHERE IS EXPECTED TO BECOME MODERATELY UNSTABLE AS TEMPERATURES WARM INTO THE UPPER 70S TO NEAR 80. ALTHOUGH THERE IS NOT VERY MUCH MOISTURE IN THE LOWER LEVELS OF THE ATMOSPHERE...THE LIFTING ALONG THE FRONT AND THE VERY WARM TEMPERATURES SHOULD ALLOW THUNDERSTORMS TO DEVELOP. SOME OF THESE THUNDERSTORMS MAY INCREASE TO SEVERE LEVELS THIS AFTERNOON INTO THE EARLY EVENING ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS. LARGE HAIL WILL BE THE PRIMARY THREAT. THE EXPECTED VERTICAL WIND PROFILE THIS AFTERNOON WILL BE SOMEWHAT MARGINAL FOR THE DEVELOPMENT OF SUPERCELL THUNDERSTORMS. THUS... TORNADOES APPEAR UNLIKELY THIS AFTERNOON AND TONIGHT. SPOTTERS ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS MAY REQUIRE ACTIVATION LATER THIS AFTERNOON AND EARLY THIS EVENING. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION.
Special weather statement, May 5, 11:52 AM CDT, 32 minutes before
OKZ054>076-ARZ001-002-010-011-019-029-061200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 1145 AM CDT MON MAY 5 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS AFTERNOON AND EARLY THIS EVENING OVER NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS... MAINLY NORTH OF A OKEMAH OKLAHOMA TO BERRYVILLE ARKANSAS LINE. A WEAK COLD FRONT WAS CURRENTLY LOCATED FROM CHANUTE KANSAS TO NEAR ENID AND IS EXPECTED TO MOVE INTO NORTHEASTERN OKLAHOMA THIS AFTERNOON. AHEAD OF THIS FRONT...THE ATMOSPHERE IS EXPECTED TO BECOME MODERATELY UNSTABLE AS TEMPERATURES WARM INTO THE UPPER 70S TO NEAR 80. ALTHOUGH THERE IS NOT VERY MUCH MOISTURE IN THE LOWER LEVELS OF THE ATMOSPHERE...THE LIFTING ALONG THE FRONT AND THE VERY WARM TEMPERATURES SHOULD ALLOW THUNDERSTORMS TO DEVELOP. SOME OF THESE THUNDERSTORMS MAY INCREASE TO SEVERE LEVELS THIS AFTERNOON INTO THE EARLY EVENING ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS. LARGE HAIL WILL BE THE PRIMARY THREAT. THE EXPECTED VERTICAL WIND PROFILE THIS AFTERNOON WILL BE SOMEWHAT MARGINAL FOR THE DEVELOPMENT OF SUPERCELL THUNDERSTORMS. THUS... TORNADOES APPEAR UNLIKELY THIS AFTERNOON AND TONIGHT. SPOTTERS ACROSS NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS MAY REQUIRE ACTIVATION LATER THIS AFTERNOON AND EARLY THIS EVENING. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION.
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.