Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 217, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 29, 1997, 8:54 PM CDT for Nowata County, Rogers County, Oklahoma. It was in force for 66 min. 2 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
- Jun 29, 1997, 8:54 PM CDT (01:54 UTC)
- Expired
- Jun 29, 1997, 10:00 PM CDT
- In force
- 66 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Nowata County, OK, Rogers County, OK
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 29, 9:20 PM CDT | Thunderstorm Wind 56 | Lenapah, OK | |
| Jun 29, 9:40 PM CDT | Thunderstorm Wind | Chelsea, 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 |
|---|---|---|---|
| Jun 29, 5:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 1.9 hours before the alert went out and 165 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
- 555 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 998 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 37 m²/s²
- 0-3 km storm-relative helicity
- 88 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
399
WUUS1 KTUL 300153 RRA
SVRTUL
OKC037-105-131-143-300300-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
854 PM CDT SUN JUN 29 1997
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1000 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
IN NORTHEAST OKLAHOMA
...NORTHERN CREEK COUNTY...NOWATA COUNTY...ROGERS COUNTY...
TULSA COUNTY
AT 852 PM A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM COPAN TO
AVANT TO PAWNEE. THE LINE WAS MOVING TO THE SOUTHEAST AT 35 MILES
AN HOUR.
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 70 MPH CAN BE EXPECTED
IN THE WARNED AREA.
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA. REMEMBER...
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES WITH
LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO RAPIDLY
CHANGING WEATHER CONDITIONS.
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, 9 minutes earlier.
Area forecast discussion, Jun 29, 8:45 PM CDT, 9 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
Special weather statement, Jun 29, 5:30 PM CDT, 3 hours 24 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-301200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TULSA OK 530 PM CDT SUN JUN 29 1997 A FEW SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EASTERN OKLAHOMA TONIGHT. AN OUTFLOW BOUNDARY LEFT OVER FROM STORMS IN KANSAS EARLIER TODAY HAS TAKEN POSITION ALONG THE OKLAHOMA/KANSAS BORDER. IN ADDITION...THE ATMOSPHERE OVER NORTHEAST OKLAHOMA IS UNSTABLE...A WEAK UPPER LEVEL DISTURBANCE IS MOVING OVER THE AREA... AND THE WIND PROFILE...WHICH HAS BEEN ENHANCED BY THE PRESENCE OF THE OUTFLOW BOUNDARY AND THE UPPER-LEVEL DISTURBANCE...IS CONDUCIVE TO SUPERCELL FORMATION. AT 530 PM...SEVERE THUNDERSTORMS HAVE FORMED IN SOUTH-CENTRAL KANSAS. THESE STORMS ARE EXPECTED TO MOVE SLOWLY SOUTHEASTWARD ACROSS THE AREA THROUGH THE EVENING. THE LOSS OF DAYTIME HEATING AND A SLIGHT WARMING OF MID-LEVEL TEMPERATURES MAY RESULT IN A REDUCTION IN STORM INTENSITY AS THE EVENING WEARS ON. NEVERTHELESS...LARGE HAIL...DAMAGING WINDS...AND A FEW TORNADOES ARE STILL POSSIBLE IN ANY STORMS THAT PERPETUATE THROUGH THE EVENING. SPOTTER ACTIVATION IS RECOMMENDED IN NORTHEAST OKLAHOMA AT THIS TIME.
Special weather statement, Jun 29, 5:48 PM CDT, 3 hours 6 minutes before
ARZ001-002-010-011-019-029-OKZ054>076-301200- EASTERN OKLAHOMA/NORTHWEST ARKANSAS THUNDERSTORM OUTLOOK...UPDATED NATIONAL WEATHER SERVICE TULSA OK 530 PM CDT SUN JUN 29 1997 A FEW SEVERE THUNDERSTORMS ARE POSSIBLE ACROSS EASTERN OKLAHOMA TONIGHT. AN OUTFLOW BOUNDARY LEFT OVER FROM STORMS IN KANSAS EARLIER TODAY HAS TAKEN POSITION ALONG THE OKLAHOMA/KANSAS BORDER. IN ADDITION...THE ATMOSPHERE OVER NORTHEAST OKLAHOMA IS UNSTABLE...A WEAK UPPER LEVEL DISTURBANCE IS MOVING OVER THE AREA... AND THE WIND PROFILE...WHICH HAS BEEN ENHANCED BY THE PRESENCE OF THE OUTFLOW BOUNDARY AND THE UPPER-LEVEL DISTURBANCE...IS CONDUCIVE TO SUPERCELL FORMATION. AT 530 PM...SEVERE THUNDERSTORMS HAVE FORMED IN SOUTH-CENTRAL KANSAS. THESE STORMS ARE EXPECTED TO MOVE SLOWLY SOUTHEASTWARD ACROSS THE AREA THROUGH THE EVENING. THE LOSS OF DAYTIME HEATING AND A SLIGHT WARMING OF MID-LEVEL TEMPERATURES MAY RESULT IN A REDUCTION IN STORM INTENSITY AS THEz EVENING WEARS ON. NEVERTHELESS...LARGE HAIL...DAMAGING WINDS...AND A FEW TORNADOES ARE STILL POSSIBLE IN ANY STORMS THAT PERPETUATE THROUGH THE EVENING. SPOTTER ACTIVATION IS RECOMMENDED IN NORTHEAST OKLAHOMA AT THIS TIME.
Local storm report, Jun 29, 8:19 PM CDT, 35 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
821 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0814 PM 5 W PAWHUSKA OK 60 MPH TSTM GUST
06/29/97 OSAGELocal storm report, Jun 29, 8:21 PM CDT, 33 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
821 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0814 PM 5 W PAWHUSKA OK 60 MPH TSTM GUST
06/29/97 OSAGELocal storm report, Jun 29, 8:23 PM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
823 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0808 PM PAWHUSKA OK 60 MPH TSTM GUST
06/29/97 OSAGELocal storm report, Jun 29, 8:43 PM CDT, 11 minutes before
PRELIMINARY STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
843 PM CDT SUN JUN 29 1997
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0755 PM SHIDLER OK WIND DAMAGE
06/29/97 OSAGE NUMEROUS TREES AND POWER
LINES DOWN...ESTIMATED
70 MPH TSTM GUSTThe 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, 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 29, 11:38 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Muskogee | 52 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.