Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 221, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 29, 1997, 11:38 PM CDT for McIntosh County, Muskogee County, Oklahoma. It was in force for 52 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
- Jun 29, 1997, 11:38 PM CDT (04:38 UTC)
- Expired
- Jun 30, 1997, 12:30 AM CDT
- In force
- 52 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties McIntosh County, OK, Muskogee County, OK
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.6 hours before the alert went out and 173 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
- 2990 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1186 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 1.6
- Supercell composite
- 10.7
The text
As transmitted, in the capitals the NWS used until 2016.
269 WUUS1 KTUL 300436 RRA SVRTUL OKC091-101-300530- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1138 PM CDT SUN JUN 29 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1230 AM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN EAST CENTRAL OKLAHOMA ...NORTHERN MCINTOSH COUNTY...MUSKOGEE COUNTY AT 1133 PM...RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS FROM 4 MILES SOUTHWEST OF HASKELL TO 3 MILES WEST OF BOYNTON TO NEAR HITCHITA... MOVING EAST SOUTHEAST AT ABOUT 35 MPH. DAMAGING WINDS WITH GUSTS UP TO 65 MPH WILL OCCUR WITH THIS LINE OF THUNDERSTORMS. IF YOU ARE IN THE PATH OF THESE STORMS SEEK SHELTER IMMEDIATELY IN THE LOWEST FLOOR OF YOUR BUILDING OR HOME. STAY AWAY FROM OUTSIDE WALLS AND WINDOWS. IF YOU ARE IN A MOBILE HOME YOU SHOULD MOVE TO A MORE SUBSTANTIAL STRUCTURE IF ONE IS NEARBY. 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 Jun 29, 8:45 PM CDT, 2 hours 53 minutes earlier.
Area forecast discussion, Jun 29, 8:45 PM CDT, 2 hours 53 minutes before
FPUS3 KTUL 300145 AFDTUL EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 845 PM CDT SUN JUN 29 1997 NEARLY SOLID LINE OF STG TO SVR TSTMS EXTDG FROM WRN MO THROUGH KS TO NRN OK...ALL MOVG SOUTH OR SOUTHEAST. HIGH THETA E AND VERY UNSTABLE AMS INDICATES THE LINE SHD KEEP MOVG THROUGH MUCH OF THE FCST AREA. WILL RAISE POPS TO LIKELY OR HIGHER OVER NRN PTNS AREA...BUT WILL KEEP LIKELY OR CHC FARTHER SOUTH...AS AMS SHD STABLIZE SOME AS SFC HEATING DMSHS SO STORMS SHD WKN AND BECOME MORE SCATTERED. WILL LOWER MINS AS RAIN COOLED AIR HAS ALREADY DROPPED SOME READINGS INTO THE UPPER 60S IN KAY AND OSAGE COUNTY. NO OTHER CHANGES. /02 .TUL... OK...NONE. AR...NONE.
In the hours before
Local storm report, Jun 29, 10:49 PM CDT, 49 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1050 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0900 PM 4W COPA6N OK 65 MPH TSTM GUST
06/29/97 WASHINGTON
0845 PM HULAH DAM OK 70 MPH TSTM GUST
06/29/97 OSAGE
0855 PM HULAH DAM OK 80 MPH TSTM GUST
06/29/97 OSAGELocal storm report, Jun 29, 10:50 PM CDT, 48 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1050 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0900 PM 4W COPAN OK 65 MPH TSTM GUST
06/29/97 WASHINGTON
0845 PM HULAH DAM OK 70 MPH TSTM GUST
06/29/97 OSAGE
0855 PM HULAH DAM OK 80 MPH TSTM GUST
06/29/97 OSAGELocal storm report, Jun 29, 10:51 PM CDT, 47 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1051 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0850 PM 5NW BARNSDALL OK WIND DAMAGE
06/29/97 OSAGE TREE LIMBS DOWN
REPORTED BY CHANNEL 6
METEOROLOGIST
0855 PM AVANT OK WIND DAMAGE
06/29/97 OSAGE 4-5 INCH TREE LIMBS DOWN
REPORTED BY CHANNEL 6
METEOROLOGISTLocal storm report, Jun 29, 10:56 PM CDT, 42 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1051 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0850 PM 5NW BARNSDALL OK WIND DAMAGE
06/29/97 OSAGE TREE LIMBS DOWN
REPORTED BY CHANNEL 6
METEOROLOGIST
0855 PM AVANT ^ OK WIND DAMAGE
06/29/97 OSAGE 4-5 INCH TREE LIMBS DOWN
REPORTED BY CHANNEL 6
METEOROLOGISTSpecial weather statement, Jun 29, 11:27 PM CDT, 11 minutes before
OKZ054-055-056-057-058-059-060-061-062-063-064-065-066-067-068- 069-070-071-300500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1128 PM CDT SUN JUN 29 1997 ...TORNADO WATCH NUMBER 540 HAS EXPIRED FOR EASTERN OKLAHOMA... TORNADO WATCH NUMBER 540 HAS EXPIRED FOR EASTERN OKLAHOMA. THE THUNDERSTORMS HAVE WEAKENED AND ARE NOT EXPECTED TO PRODUCE ANY MORE ORGANIZED SEVERE WEATHER. HOWEVER...AREAS OF HEAVY RAIN AND GUSTY WINDS WILL CONTINUE ALONG THE LINE OF THUNDERSTORMS...WELL PAST MIDNIGHT. AT 1120 PM...THE LINE OF THUNDERSTORMS EXTENDED FROM BENTON COUNTY ARKANSAS TO ADAIR COUNTY OKLAHOMA AND ON WESTWARD ACROSS MUSKOGEE... OKMULGEE...AND OKFUSKEE COUNTIES. THE LINE WAS MOVING SOUTH AND EAST AT ABOUT 20 TO 30 MPH. SHOWERS AND A FEW THUNDERSTORMS CONTINUED NORTH OF THE LINE...ALL THE WAY TO THE KANSAS STATE LINE. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Jun 29, 11:28 PM CDT, 10 minutes before
OKZ054-055-056-057-058-059-060-061-062-063-064-065-066-067-068- 069-070-071-300500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 1128 PM CDT SUN JUN 29 1997 ...TORNADO WATCH NUMBER 540 HAS EXPIRED FOR EASTERN OKLAHOMA... TORNADO WATCH NUMBER 540 HAS EXPIRED FOR EASTERN OKLAHOMA. THE THUNDERSTORMS HAVE WEAKENED AND ARE NOT EXPECTED TO PRODUCE ANY MORE ORGANIZED SEVERE WEATHER. HOWEVER...AREAS OF HEAVY RAIN AND GUSTY WINDS WILL CONTINUE ALONG THE LINE OF THUNDERSTORMS...WELL PAST MIDNIGHT. AT 1120 PM...THE LINE OF THUNDERSTORMS EXTENDED FROM BENTON COUNTY ARKANSAS TO ADAIR COUNTY OKLAHOMA AND ON WESTWARD ACROSS MUSKOGEE... OKMULGEE...AND OKFUSKEE COUNTIES. THE LINE WAS MOVING SOUTH AND EAST AT ABOUT 20 TO 30 MPH. SHOWERS AND A FEW THUNDERSTORMS CONTINUED NORTH OF THE LINE...ALL THE WAY TO THE KANSAS STATE LINE. STAY TUNED TO THIS STATION FOR THE LATEST WEATHER INFORMATION.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 29, 7:18 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 57 min |
| Jun 29, 8:08 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 52 min |
| Jun 29, 8:36 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 54 min |
| Jun 29, 8:54 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Tulsa | 66 min |
| Jun 29, 8:54 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers | 66 min |
| Jun 29, 9:00 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 30 min |
| Jun 29, 9:29 PM CDT | Severe Thunderstorm Warning | TSA | Mayes, Wagoner | 61 min |
| Jun 29, 9:29 PM CDT | Severe Thunderstorm Warning | TSA | Craig | 61 min |
| Jun 30, 12:27 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Sequoyah | 63 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.