Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 244, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 10, 1997, 2:26 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 49 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
- Jul 10, 1997, 2:26 PM CDT (19:26 UTC)
- Expired
- Jul 10, 1997, 3:15 PM CDT
- In force
- 49 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Osage County, OK, Pawnee County, OK
The radar
The Tulsa radar (KINX), 94 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 85 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
- 1439 J/kg
- Mixed-layer CIN
- -70 J/kg
- Mixed-layer LCL
- 1025 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- -6 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
837 WUUS1 KTUL 101927 RRA SVRTUL OKC113-117-102015- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 226 PM CDT THU JUL 10 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 315 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST OKLAHOMA ...WESTERN OSAGE COUNTY...WESTERN PAWNEE COUNTY AT 224 PM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS ALONG THE NOBLE AND PAWNEE COUNTY LINE FROM 10 MILES WEST OF PAWNEE TO 13 MILES WEST OF RALSTON. THIS LINE IS MOVING NORTHEAST AT AROUND 10 MPH AND WILL AFFECT PAWNEE...RALSTON AND FAIRFAX. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 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 Jul 10, 12:50 PM CDT, 1 hour 36 minutes earlier.
Area forecast discussion, Jul 10, 12:50 PM CDT, 1 hour 36 minutes before
FPUS3 KTUL 101749 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1250 PM CDT THU JUL 10 1997 JUST ISSUED QUICK UPDATE TO INCREASE POPS ONCE AGAIN AND LOWER HIGHS FOR RAINY AREAS. ...19... .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, Jul 10, 12:58 PM CDT, 1 hour 28 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-111200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT THU JUL 10 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND EVENING. A LARGE COMPLEX OF RAIN AND THUNDERSTORMS WHICH HAS BEEN ABOUT STATIONARY OVER NORTHEAST OKLAHOMA AND EXTREME NORTHWEST ARKANSAS DURING THE MORNING HAS CREATED A NUMBER OF OUTFLOW BOUNDARIES ACROSS THE REGION. OUTSIDE OF THE RAIN THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND LITTLE CAP WAS PRESENT. THEREFORE DESPITE THE LACK OF AN UPPER SYSTEM...THUNDERSTORMS WILL INCREASE THIS AFTERNOON ALONG THE EDGES OF THE ORIGINAL COMPLEX AND ALSO IN AREAS OF HIGHER TERRAIN WHERE THE SOUTHERLY LOW-LEVEL FLOW IS LIFTED. THERE IS ENOUGH INSTABILITY FOR ISOLATED PULSE SEVERE STORMS WITH DIME SIZE HAIL AND DOWNBURST WINDS THE MAIN THREAT. THE LACK OF STRONG WINDS ALOFT WILL RESULT IN SLOW STORM MOVEMENTS AND THIS WILL CAUSE LOCALLY HEAVY RAINS. A ZONE FROM TULSA TO TAHLEQUAH TO MUSKOGEE AND WEBBERS FALLS HAVE RECEIVED THE MOST RAIN DURING THE MORNING AND IF STORMS AGAIN TRACK THROUGH THESE AREAS THE THREAT FOR FLASH FLOODING WILL INCREASE. WHILE A SEVERE STORM IS POSSIBLE ANYWHERE IN THE AREA THIS AFTERNOON AND EVENING...TWO AREAS APPEAR THE MOST FAVORED. THE FIRST AREA IS IN BENTON...CARROLL...WASHINGTON AND MADISON COUNTIES OF NORTHWEST ARKANSAS WHERE THUNDERSTORM BOUNDARIES INTERACTS WITH THE HIGHER TERRAIN. A SECOND FAVORED AREA WILL BE FROM SOUTHERN LE FLORE COUNTY TO NEAR MCALESTER TO CREEK COUNTY TO WESTERN OSAGE COUNTY. IN THESE AREAS THE BOUNDARY IS FOCUSING THE MOST UNSTABLE AIR. ONCE ANY STORMS FORM THEY SHOULD DRIFT OFF TO THE NORTHEAST AROUND 10 MPH. THE THREAT FOR SEVERE WEATHER IN THE AREA SHOULD END A LITTLE AFTER SUNSET AS THE INSTABILITY IS LOST. REDEVELOPMENT OF THUNDERSTORMS IS POSSIBLE TOWARD MORNING IN EASTERN OKLAHOMA AS A WEAK DISTURBANCE APPROACHES...BUT LIMITED INSTABILITY AT THAT TIME OF DAY SHOULD KEEP ANY STORMS THAT FORM FROM BECOMING SEVERE. EMERGENCY MANAGEMENT AGENCIES SHOULD LISTEN FOR THE LATEST WEATHER FORECASTS...MONITOR LOCAL CONDITIONS AND BE READY FOR ACTIVATION THIS AFTERNOON AND EVENING.
Special weather statement, Jul 10, 1:00 PM CDT, 1 hour 26 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-111200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT THU JUL 10 1997 ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE IN EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THIS AFTERNOON AND EVENING. A LARGE COMPLEX OF RAIN AND THUNDERSTORMS WHICH HAS BEEN ABOUT STATIONARY OVER NORTHEAST OKLAHOMA AND EXTREME NORTHWEST ARKANSAS DURING THE MORNING HAS CREATED A NUMBER OF OUTFLOW BOUNDARIES ACROSS THE REGION. OUTSIDE OF THE RAIN THE ATMOSPHERE WAS BECOMING VERY UNSTABLE AND LITTLE CAP WAS PRESENT. THEREFORE DESPITE THE LACK OF AN UPPER SYSTEM...THUNDERSTORMS WILL INCREASE THIS AFTERNOON ALONG THE EDGES OF THE ORIGINAL COMPLEX AND ALSO IN AREAS OF HIGHER TERRAIN WHERE THE SOUTHERLY LOW-LEVEL FLOW IS LIFTED. THERE IS ENOUGH INSTABILITY FOR ISOLATED PULSE SEVERE STORMS WITH DIME SIZE HAIL AND DOWNBURST WINDS THE MAIN THREAT. THE LACK OF STRONG WINDS ALOFT WILL RESULT IN SLOW STORM MOVEMENTS AND THIS WILL CAUSE LOCALLY HEAVY RAINS. A ZONE FROM TULSA TO TAHLEQUAH TO MUSKOGEE AND WEBBERS FALLS HAVE RECEIVED THE MOST RAIN DURING THE MORNING AND IF STORMS AGAIN TRACK THROUGH THESE AREAS THE THREAT FOR FLASH FLOODING WILL INCREASE. WHILE A SEVERE STORM IS POSSIBLE ANYWHERE IN THE AREA THIS AFTERNOON AND EVENING...TWO AREAS APPEAR THE MOST FAVORED. THE FIRST AREA IS IN BENTON...CARROLL...WASHINGTON AND MADISON COUNTIES OF NORTHWEST ARKANSAS WHERE THUNDERSTORM BOUNDARIES INTERACTS WITH THE HIGHER TERRAIN. A SECOND FAVORED AREA WILL BE FROM SOUTHERN LE FLORE COUNTY TO NEAR MCALESTER TO CREEK COUNTY TO WESTERN OSAGE COUNTY. IN THESE AREAS THE BOUNDARY IS FOCUSING THE MOST UNSTABLE AIR. ONCE ANY STORMS FORM THEY SHOULD DRIFT OFF TO THE NORTHEAST AROUND 10 MPH. THE THREAT FOR SEVERE WEATHER IN THE AREA SHOULD END A LITTLE AFTER SUNSET AS THE INSTABILITY IS LOST. REDEVELOPMENT OF THUNDERSTORMS IS POSSIBLE TOWARD MORNING IN EASTERN OKLAHOMA AS A WEAK DISTURBANCE APPROACHES...BUT LIMITED INSTABILITY AT THAT TIME OF DAY SHOULD KEEP ANY STORMS THAT FORM FROM BECOMING SEVERE. EMERGENCY MANAGEMENT AGENCIES SHOULD LISTEN FOR THE LATEST WEATHER FORECASTS...MONITOR LOCAL CONDITIONS AND BE READY FOR ACTIVATION THIS AFTERNOON AND EVENING.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 10, 12:02 PM CDT | Flash Flood Warning | TSA | Muskogee | 118 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.