Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 298, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jul 23, 1997, 4:43 PM CDT for Latimer County, LeFlore County, Oklahoma. It was in force for 47 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 23, 1997, 4:43 PM CDT (21:43 UTC)
- Expired
- Jul 23, 1997, 5:30 PM CDT
- In force
- 47 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Latimer County, OK, LeFlore County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 9.7 hours before the alert went out and 224 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
- 1678 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1367 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -15 m²/s²
- 0-3 km storm-relative helicity
- 15 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
410 WUUS1 KTUL 232144 RRA SVRTUL OKC077-079-232230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 443 PM CDT WED JUL 23 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 530 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTHEAST OKLAHOMA ...EASTERN LATIMER COUNTY...WESTERN LE FLORE COUNTY AT 442 PM...RADAR INDICATED A SEVERE THUNDERSTORM BETWEEN FANSHAWE AND HUGHES. LITTLE MOVEMENT IS INDICATED. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 70 PH CAN BE EXPECTED IN THE WARNED AREA.
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 23, 4:22 PM CDT, 21 minutes earlier.
Area forecast discussion, Jul 23, 4:22 PM CDT, 21 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 420 PM CDT WED JUL 23 1997 ...UPDATED TO INCLUDE SPECFIC FORECAST NUMBERS... WIDELY SCATTERED STORMS WERE OVER THE FA AT LATE AFTERNOON AND WILL END NEAR OR A LITTLE AFTER SUNSET. WE HAVE HAD SEVERAL SEVERE REPORTS IN TULSA AND THE ATMOSPHERE WILL SUPPORT PULSE SEVERE CELLS WITH MICROBURSTS AND HAIL. /NWS STAFF WATCHED AN IMPRESSIVE RAIN FOOT ACCELERATE ACROSS TULSA THIS AFTERNOON/. ANY STORM WILL BE SHORT LIVED AND SLOW MOVING. THE WEAK LOW-LEVEL WINDS WILL LIMIT REGERNERATION OF ACTIVITY ON SUBSEQUENT BOUNDARIES SO COVERAGE WILL REMAIN IN THE ISOLATED TO SCATTERED CATEGORIES. SATELLITE LOOPS SHOW RIDGING CONTINUES ALONG THE EAST SIDE OF THE ROCKIES...BUT THE RESULTING DOWNSTREAM TROFING WILL BE SHUNTED EAST OF THE AREA AS THE MID-LEVEL HIGH CENTER SHIFTS INTO THE PLAINS. THIS SHOULD WARM THE MID-LEVELS SOME AND BEGIN TO LIMIT AFTERNOON STORMS...HOWEVER CAN NOT COMPLETELY RULE THEM OUT TOMORROW IN THE HIGHER TERRAIN OF NW ARKANSA AND SE OKLAHOMA. TEMP FORECAST IS A BLEND OF NGM AND AVN MOS GUIDANCE. WE WILL BE NEAR HEAT ADVISORY CRITERIA IN THE TULSA METRO AREA. CRITERIA FOR THE ADVISORY IS AFTERNOON HEAT INDICES NEAR 110 AND NIGHTTIME LOWS AT OR ABOVE 80. RIGHT NOW AM FORECASTING TULSA TO BE JUST BELOW THIS...LATER SHIFTS CAN ADJUST IF NECESSARY. TUL 078/097 079/099 079 0000 FSM 074/098 074/098 074 -11- MLC 074/p097 076/098 075 111- BVO 075/097 076/098 076 0000 FYV 071/095 071/095 073 -11- IDB 071/101 073/100 073 3331 BYV 069/092 070/093 072 0--- /8 .TUL... OK...NONE. AR...NONE.
In the hours before
Special weather statement, Jul 23, 12:58 PM CDT, 3 hours 45 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-241200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT WED JUL 23 1997 ISOLATED SHORT-LIVED SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING...MAINLY ACROSS SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS. TEMPERATURES IN THE 90S AND DEWPOINTS IN THE 70S WILL CAUSED THE ATMOSPHERE TO BECOME INCREASINGLY UNSTABLE ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH THE AFTERNOON. THE BEST CHANCE FOR THUNDERSTORM DEVELOPMENT SHOULD BE OVER THE HIGHER TERRAIN OF SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS...GENERALLY ALONG AND SOUTH OF INTERSTATE 40. ANY THUNDERSTORM THAT FORMS WILL HAVE THE POTENTIAL TO BECOME BRIEFLY SEVERE...WITH LARGE HAIL AND STRONG DOWNBURST WINDS THE MAIN SEVERE WEATHER THREAT. LIGHT WINDS ALOFT ALSO SUGGEST THAT THUNDERSTORMS WILL MOVE SLOWLY...SO LOCALIZED HEAVY RAINFALL WILL ALSO BE POSSIBLE. THUNpDERSTORMS SHOULD DISSIPATE SHORTLY AFTER SUNSET WITH THE LOSS OF DAYTIME HEATING. EMERGENCY MANAGEMENT AGENCIES AND SPOTTER GROUPS SHOULD MONITOR THE WEATHER CONDITIONS AND BE PREPARED FOR QUICK ACTIVATION THIS AFTERNOON AND THIS EVENING.
Special weather statement, Jul 23, 1:00 PM CDT, 3 hours 43 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-241200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK NATIONAL WEATHER SERVICE TULSA OK 100 PM CDT WED JUL 23 1997 ISOLATED SHORT-LIVED SEVERE THUNDERSTORMS ARE EXPECTED THIS AFTERNOON AND EVENING...MAINLY ACROSS SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS. TEMPERATURES IN THE 90S AND DEWPOINTS IN THE 70S WILL CAUSED THE ATMOSPHERE TO BECOME INCREASINGLY UNSTABLE ACROSS EASTERN OKLAHOMA AND NORTHWEST ARKANSAS THROUGH THE AFTERNOON. THE BEST CHANCE FOR THUNDERSTORM DEVELOPMENT SHOULD BE OVER THE HIGHER TERRAIN OF SOUTHEAST OKLAHOMA AND WEST CENTRAL ARKANSAS...GENERALLY ALONG AND SOUTH OF INTERSTATE 40. ANY THUNDERSTORM THAT FORMS WILL HAVE THE POTENTIAL TO BECOME BRIEFLY SEVERE...WITH LARGE HAIL AND STRONG DOWNBURST WINDS THE MAIN SEVERE WEATHER THREAT. LIGHT WINDS ALOFT ALSO SUGGEST THAT THUNDERSTORMS WILL MOVE SLOWLY...SO LOCALIZED HEAVY RAINFALL WILL ALSO BE POSSIBLE. THUNDERSTORMS SHOULD DISSIPATE SHORTLY AFTER SUNSET WITH THE LOSS OF DAYTIME HEATING. EMERGENCY MANAGEMENT AGENCIES AND SPOTTER GROUPS SHOULD MONITOR THE WEATHER CONDITIONS AND BE PREPARED FOR QUICK ACTIVATION THIS AFTERNOON AND THIS EVENING.
Local storm report, Jul 23, 3:38 PM CDT, 1 hour 5 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
338 PM CDT WED JUL 23 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0238 PM TULSA OK 65 MPH TSTM GUST
07/23/97 TULSA AT 71ST AND SHERIDAN
0247 PM 1 N BROKEN ARROW OK 1.25 INCH HAIL AND
07/23/97 TULSA 60 MPH TSTM GUST
0250 PM TULSA OK 65 MPH TSTM GUST
07/23/97 TULSA AT 43RD AND SHERIDANLocal storm report, Jul 23, 3:44 PM CDT, 59 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
338 PM CDT WED JUL 23 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0238 PM TULSA OK 65 MPH TSTM GUST
07/23/97 TULSA AT 71ST AND SHERIDAN
0247 PM 1 N BROKEN ARROW OK 1.25 INCH HAIL AND
07/23/97 TULSA 60 MPH TSTM GUST
0250 PM TULSA OK 65 MPH TSTM GUST
07/23/97 TULSA AT 43RD AND SHERIDANThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 7:25 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 35 min |
| Jul 23, 12:53 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 37 min |
| Jul 23, 2:36 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 54 min |
| Jul 23, 2:53 PM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 52 min |
| Jul 23, 5:45 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 30 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.