Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 168, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 17, 2002, 1:04 AM CDT for Okmulgee County, Oklahoma. It was in force for 56 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 17, 2002, 1:04 AM CDT (06:04 UTC)
- Expired
- May 17, 2002, 2:00 AM CDT
- In force
- 56 min
- Issued by
- NWS Tulsa, OK
- Area
- Counties, with a storm outline in the text
County Okmulgee County, OK
The radar
The Tulsa radar (KINX), 67 km from the middle of the area, began a volume at 06:06 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 |
|---|---|---|---|
| May 17, 1:20 AM CDT | Hail 0.75 | Preston, 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.
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 |
|---|---|---|---|
| May 16, 10:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 6.1 hours before the alert went out and 141 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
- 3039 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 1088 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 5.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KTSA 170604
SVRTUL
OKC111-170700-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
105 AM CDT FRI MAY 17 2002
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
OKMULGEE COUNTY IN NORTHEAST OKLAHOMA
* UNTIL 200 AM CDT
* AT 105 AM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
A LINE EXTENDING FROM 5 MILES SOUTHEAST OF BALD HILL TO 4 MILES
NORTHWEST OF MORRIS TO 5 MILES WEST OF OKMULGEE...MOVING EAST AT 30
MPH.
* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...OKMULGEE...
MORRIS...PRESTON AND BALD HILL.
HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN
THE WARNED AREA. STAY INDOORS AND AWAY FROM WINDOWS UNTIL THE STORM
HAS PASSED.
LAT...LON 3571 9609 3563 9612 3551 9611 3556 9573
3567 9571 3583 9576What 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 May 16, 7:53 PM CDT, 5 hours 11 minutes earlier.
Area forecast discussion, May 16, 7:53 PM CDT, 5 hours 11 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 753 PM CDT THU MAY 16 2002 COMPLICATED SFC PATTERN THIS EVENING WITH MULTIPLE BOUNDARIES ACROSS AREA. COLD FRONT LOCATED NEAR MCI EXTENDING SW INTO OK PANHANDLE. FURTHER SOUTH INVERTED SFC TROUGH OVER NW OK AND SECONDARY WEAKER BOUNDARY ACROSS SE OK. ELEVATED CONVECTION HAS DEVELOP OVER SOUTH-CENTRAL OK/NORTH TEXAS IN RESPONSE TO WEAK UPPER WAVE THAT MOVED OUT OF MEXICO EARLIER TODAY. ELEVATED INSTABILITIES WILL REMAIN MARGINAL THIS EVENING...BUT STRONGER CELLS COULD BRIEFLY APPROACH SEVERE LIMITS AS ACTIVITY MOVES EAST ACROSS SE OK THIS EVENING. STRONGER CONVECTION WILL LIKELY DEVELOP AFTER MIDNIGHT AS MAIN UPPER DISTURBANCE MOVES OUT INTO THE CENTRAL PLAINS. SCT TSTMS COULD DEVELOP LATER THIS EVENING ALONG INVERTED SFC TROUGH OVER NORTH-CENTRAL/ NORTHEAST OK...BECOMING MORE WIDESPREAD AS COLD FRONT PUSHES SOUTH INTO FA LATE TONIGHT. THE HEAVIEST PRECIP EXPECTED AFTER 300 AM... CONTINUING THROUGH THE MORNING HOURS BEFORE PUSHING EAST OF FA BY MID AFTERNOON FRIDAY. FLASH FLOOD WATCH STILL LOOKS GOOD AS WIDESPREAD 2-3 INCH RAINFALL AMOUNTS WILL BE POSSIBLE OVER PORTIONS OF FA THROUGH FRIDAY AFTERNOON. WILL UPDATE TO TWEAK CURRENT FORECAST GIVEN LATEST TRENDS...OTHERWISE NO SIGNIFICANT CHANGES ANTICIPATED THIS EVENING. FCSTID = 12 .TSA... AR...FLASH FLOOD WATCH UNTIL NOON CDT FRIDAY FOR ZONES ARZ001>002...ARZ010>011...ARZ019>020...ARZ029. OK...FLASH FLOOD WATCH FROM UNTIL NOON CDT FRIDAY FOR ZONES OKZ054>076.
In the hours before
Local storm report, May 16, 11:50 PM CDT, 1 hour 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1150 PM CDT THU MAY 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1145 PM 5 S CLEVELAND OK .75 INCH HAIL
05/16/02 PAWNEE REPORTED BY TRAINED
SPOTTERLocal storm report, May 17, 12:12 AM CDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1212 AM CDT FRI MAY 17 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1208 AM 5 S PRUE OK 1.00 INCH HAIL
05/16/02 TULSA REPORTED BY TRAINED
SPOTTERLocal storm report, May 17, 12:12 AM CDT, 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1212 AM CDT FRI MAY 17 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1208 AM 5 S PRUE OK 1.00 INCH HAIL
05/17/02 TULSA REPORTED BY TRAINED
SPOTTERLocal storm report, May 17, 12:18 AM CDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1218 AM CDT FRI MAY 17 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0905 PM 3 S ANTLERS OK .75 INCH HAIL
05/16/02 PUSHMATAHALocal storm report, May 17, 12:48 AM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1248 AM CDT FRI MAY 17 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1242 AM TULSA OK 1.00 INCH HAIL
05/17/02 TULSA 51ST AND YALE. REPORTED BY
TRAINED SPOTTER.Local storm report, May 17, 12:53 AM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1253 AM CDT FRI MAY 17 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1215 AM 3 S SANDSPRINGS OK .88 INCH HAIL
05/17/02 TULSA REPORTED BY TRAINED
SPOTTERThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 16, 8:50 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 55 min |
| May 16, 9:50 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 55 min |
| May 16, 9:55 PM CDT | Flash Flood Warning | TSA | Osage, Pawnee | 2 hr |
| May 16, 11:03 PM CDT | Flash Flood Warning | TSA | Washington | 3 hr |
| May 16, 11:12 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 48 min |
| May 16, 11:20 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 40 min |
| May 16, 11:34 PM CDT | Severe Thunderstorm Warning | TSA | Washington | 41 min |
| May 16, 11:43 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Tulsa | 62 min |
| May 17, 12:26 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa | 49 min |
| May 17, 12:44 AM CDT | Severe Thunderstorm Warning | TSA | Creek | 61 min |
| May 17, 1:10 AM CDT | Severe Thunderstorm Warning | TSA | Rogers, Tulsa, Wagoner | 50 min |
| May 17, 1:18 AM CDT | Flash Flood Warning | TSA | Creek, Tulsa | 3 hr |
| May 17, 1:49 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 41 min |
| May 17, 1:58 AM CDT | Severe Thunderstorm Warning | TSA | Tulsa, Wagoner | 47 min |
| May 17, 2:12 AM CDT | Severe Thunderstorm Warning | TSA | Creek | 63 min |
| May 17, 2:21 AM CDT | Flash Flood Warning | TSA | Wagoner | 3 hr |
| May 17, 2:34 AM CDT | Flash Flood Warning | TSA | Okmulgee | 2 hr |
| May 17, 2:38 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Wagoner | 67 min |
| May 17, 3:03 AM CDT | Severe Thunderstorm Warning | TSA | Cherokee | 57 min |
| May 17, 3:12 AM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 63 min |
| May 17, 3:15 AM CDT | Flash Flood Warning | TSA | Cherokee, Creek, Delaware, Mayes, Muskogee, Okmulgee and 2 more | 3 hr |
| May 17, 3:37 AM CDT | Severe Thunderstorm Warning | TSA | Okmulgee | 53 min |
| May 17, 4:05 AM CDT | Severe Thunderstorm Warning | TSA | McIntosh | 40 min |
| May 17, 4:39 AM CDT | Severe Thunderstorm Warning | TSA | Haskell, Muskogee, Pittsburg | 51 min |
| May 17, 5:01 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 44 min |
| May 17, 5:05 AM CDT | Severe Thunderstorm Warning | TSA | Latimer | 40 min |
| May 17, 5:17 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 43 min |
| May 17, 5:23 AM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 52 min |
| May 17, 5:41 AM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 49 min |
| May 17, 6:10 AM CDT | Flash Flood Warning | TSA | Cherokee, Creek, Delaware, Mayes, Muskogee, Okmulgee and 2 more | 6 hr |
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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.