Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1997
Severe Thunderstorm Warning 210, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 25, 1997, 9:38 PM CDT for Nowata County, Washington County, Oklahoma. It was in force for 52 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 25, 1997, 9:38 PM CDT (02:38 UTC)
- Expired
- Jun 25, 1997, 10:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties
Counties Nowata County, OK, Washington County, OK
The radar
The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 02:42 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 25, 9:40 PM CDT | Thunderstorm Wind | Wann, OK | |
| Jun 25, 9:45 PM CDT | Hail 0.75 | Bartlesville, OK | Severe thunderstorms moved across extreme northeast Oklahoma during the evening of June 25th. Strong thunderstorm winds downed power lines just east of Wann, and large tree limbs were blown down 3 miles northeast of Bowring. Dime size hail fell in downtown Bar |
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 nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.6 hours before the alert went out and 175 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
- 26 J/kg
- Mixed-layer CIN
- -198 J/kg
- Mixed-layer LCL
- 995 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- -59 m²/s²
- 0-3 km storm-relative helicity
- 26 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
684 WUUS1 KTUL 260235 RRA SVRTUL OKC105-147-260330- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 938 PM CDT WED JUN 25 1997 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1030 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN NORTHEAST OKLAHOMA ...NOWATA COUNTY...WASHINGTON COUNTY AT 937 PM...NWS RADAR INDICATED A SEVERE THUNDERSTORM JUST TO THE WEST OF BARTLESVILLE MOVING EAST AT 20 MPH. BARTLESVILLE...DEWEY AND DELEWARE ARE IN THE PATH OF THIS STORM. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH 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 Jun 25, 9:25 PM CDT, 13 minutes earlier.
Area forecast discussion, Jun 25, 9:25 PM CDT, 13 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 923 PM CDT WED JUN 25 1997 TSRA OVR NE OK STILL TO PRODUCING GUSTS ARND 30-40 MPH...BUT ACTIVITY CONTINUES TO SLOWLY WEAKEN WITH LOSS OF DAYTIME HTG. WELL DEFINED OUTFLOW BNDRY NOTED FM NR SKIATOOK TO CLAREMORE TO WEST SILOAM SPRINGS...BUT HVN'T SEEN ANY SIGNS OF REDEVLPMT ALG THIS FEATURE. WILL HV TO EXTEND POPS A BIT FARTHER S INTO NE OK/NW AR PER LASTEST 88D...BUT STILL THINK CONVECTION WILL DIMINISH OVR THE NEXT 2-4 HRS. HODGES .TUL... OK...NONE. AR...NONE.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 25, 8:18 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 42 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; radar from the NEXRAD Level II archive.