Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 287, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Dec 17, 2002, 7:57 PM CST for Ottawa County, Oklahoma. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Dec 17, 2002, 7:57 PM CST (01:57 UTC)
- Expired
- Dec 17, 2002, 8:30 PM CST
- In force
- 33 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Ottawa County, OK
The radar
The Tulsa radar (KINX), 115 km from the middle of the area, began a volume at 02:01 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.
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 17, 7:35 PM CST | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 2.0 hours before the alert went out and 92 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
- 39 J/kg
- Mixed-layer CIN
- -55 J/kg
- Mixed-layer LCL
- 1087 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 267 m²/s²
- 0-3 km storm-relative helicity
- 432 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
653 WUUS54 KTSA 180157 SVRTUL OKC115-180230- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 757 PM CST TUE DEC 17 2002 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN OTTAWA COUNTY IN NORTHEAST OKLAHOMA * UNTIL 830 PM CST * AT 757 PM CST...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 6 MILES WEST OF COMMERCE...MOVING NORTHEAST AT 35 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...MIAMI... COMMERCE...QUAPAW AND PICHER. HAIL TO THE SIZE OF NICKLES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED. A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN DEVELOP SUDDENLY FROM SEVERE THUNDERSTORMS. BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH. LAT...LON 3699 9502 3684 9500 3703 9447 3723 9460
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 Dec 17, 7:48 PM CST, 9 minutes earlier.
Area forecast discussion, Dec 17, 7:48 PM CST, 9 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OKLAHOMA 748 PM CST TUE DEC 17 2002 UPDATE PENDING FOR TORNADO WATCH. WILL GO AHEAD AND BUMP UP POPS IN AND NEAR THE WATCH AREA AS STORMS FIRING IN REGION OF STRONG LIFT ASSOCIATED WITH LEFT FRONT QUAD OF JET. STORMS SHOULD QUICKLY GO SEVERE GIVEN SHEAR PROFILES OVER NE OK AND NW ARK. UPDATE OUT MOMENTARILY. .TSA... AR...NONE. OK...NONE. SULLIVAN
Hazardous weather outlook, Dec 17, 1:00 PM CST, 6 hours 57 minutes before
ARZ001-002-010-011-019-020-029-OKZ049-053>076-181200-
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
100 PM CST TUE DEC 17 2002
THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.
.DAY ONE...
SEVERE WEATHER OUTLOOK
AREA 1...ALONG AND SOUTHEAST OF A LINE FROM NOWATA OKLAHOMA TO OKEMAH
OKLAHOMA
PROBABILITY OF THUNDERSTORMS...90
IF THUNDERSTORMS DEVELOP...
PROBABILITY OF SEVERE STORMS...95
TIME OF INITIAL EVENT...817 PM
PROBABILITY OF A TORNADO / F2 OR GREATER TORNADO...5/0
PROBABILITY OF GOLFBALL HAIL OR LARGER...65
PROBABILITY OF 73 MPH WIND OR GREATER...15
GIVEN PROBABILITIES REPRESENT THE POTENTIAL FOR AN OCCURRENCE
ANYWHERE IN THE DEFINED AREA.
.DISCUSSION...
LOW LEVEL MOISTURE CONTINUES TO INCREASE EARLY THIS AFTERNOON WITH
DEWPOINTS NEARING 60 IN PARTS OF SOUTHEAST OKLAHOMA. A DRYLINE WAS
DEVELOPING FROM NEAR BARTLESVILLE TO BRISTOW WITH DEWPOINTS AROUND
40 WEST OF THE DRYLINE.
THE DRYLINE WILL RETREAT A LITTLE BACK TO THE WEST THIS EVENING AND
SURFACE DEWPOINTS WILL RANGE FROM THE MID 50S NORTH AND WEST OF
TULSA TO THE LOWER 60S IN SOUTHEAST OKLAHOMA. AN UPPER LEVEL
DISTURBANCE WILL APPROACH THE AREA THIS EVENING WHICH WILL ALLOW
ELEVATED THUNDERSTORMS TO DEVELOP WITHIN A FEW HOURS AFTER SUNSET.
FAVORABLE POSITIONING OF AN UPPER LEVEL WIND MAXIMUM ALONG WITH
ELEVATED LIFTED INDICES OF -2 TO -4 WILL RESULT IN A FEW SEVERE
THUNDERSTORMS ACROSS THE OUTLOOK AREA. FORECAST WIND FIELDS WILL BE
VERY FAVORABLE FOR SUPERCELL DEVELOPMENT WITH VERY LARGE HAIL BUT
THE ELEVATED NATURE OF THE STORMS WILL LIKELY PREVENT TORNADIC
DEVELOPMENT. DAMAGING WINDS WILL BE A MUCH LESSER THREAT THAN HAIL
BUT A FEW WIND GUSTS OF 60 TO 70 MILES AN HOUR WILL BE POSSIBLE DUE
TO THE VERY STRONG WIND FIELDS.
THUNDERSTORMS WILL MOVE EAST OF THE AREA AROUND SUNRISE WEDNESDAY.
.SPOTTER / EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION WILL LIKELY BE REQUIRED IN THE OUTLOOK AREA THIS
EVENING AND OVERNIGHT.
.DAYS TWO THROUGH SEVEN...
THERE WILL BE ANOTHER CHANCE OF SEVERE THUNDERSTORMS LATE WEDNESDAY
AFTERNOON AND EVENING...PRIMARILY ACROSS FAR EASTERN OKLAHOMA AND
NORTHWEST ARKANSAS EAST OF THE DRYLINE. A COLD FRONT WILL MOVE ACROSS
THE AREA LATE WEDNESDAY NIGHT AND THURSDAY. ANOTHER FRONTAL SYSTEM
WILL MOVE ACROSS THE AREA SATURDAY BRINGING A SLIGHT CHANCE OF
SHOWERS.
RELATED GRAPHICAL INFORMATION CAN BE FOUND AT...
WWW.SRH.NOAA.GOV/TULSAIn the hours before
Special weather statement, Dec 17, 7:08 PM CST, 49 minutes before
OKZ057-061-180215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE TULSA OK 708 PM CST TUE DEC 17 2002 ...SIGNIFICANT WEATHER ALERT IN EFFECT FOR CRAIG AND ROGERS COUNTIES UNTIL 815 PM CST... AT 708 PM CST...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 3 MILES SOUTH OF OOLOGAH...MOVING NORTHEAST AT 45 MPH. THIS STORM WILL BE CAPABLE OF PRODUCING HAIL AND WIND GUSTS TO 50 MPH. A PORTION OF CRAIG AND ROGERS COUNTIES WILL BE AFFECTED BY THESE STORMS THROUGH 815 PM CST. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE WARNINGS ARE ISSUED.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 17, 7:24 PM CST | Severe Thunderstorm Warning | TSA | Craig, Rogers | 51 min |
| Dec 18, 12:09 AM CST | Severe Thunderstorm Warning | TSA | Craig, Nowata | 51 min |
| Dec 18, 12:27 AM CST | Tornado Warning | TSA | Craig, Ottawa | 48 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2002Every severe thunderstorm warning in 2002
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.