Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 242, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 30, 2001, 9:59 PM CDT for Pushmataha County, Oklahoma. It was in force for 46 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- May 30, 2001, 9:59 PM CDT (02:59 UTC)
- Expired
- May 30, 2001, 10:45 PM CDT
- In force
- 46 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 122 km from the middle of the area, began a volume at 03:00 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 30, 10:30 PM CDT | Hail 0.75 | Clayton, 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 |
|---|---|---|---|
| May 30, 9:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 3.0 hours before the alert went out and 191 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
- 3451 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1129 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 36 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.9
- Supercell composite
- 7.7
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KTSA 310259
SVRTUL
OKC127-310345-
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
959 PM CDT WED MAY 30 2001
THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN PUSHMATAHA COUNTY IN SOUTHEAST OKLAHOMA
* UNTIL 1045 PM CDT
* AT 959 PM CDT...DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS ALONG
A LINE EXTENDING FROM 5 MILES NORTHWEST OF TUSKAHOMA TO 21 MILES
WEST OF CLAYTON TO 30 MILES WEST OF CLAYTON...MOVING SOUTHEAST AT
20 MPH.
* SOME LOCATIONS NEAR THE PATH OF THESE STORMS INCLUDE...KIAMICHI...
TUSKAHOMA AND CLAYTON.
HAIL TO THE SIZE OF NICKELS AND WIND GUSTS TO 65 MPH CAN BE EXPECTED
IN THE WARNED AREA.
BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS AS STORMS APPROACH.
LAT...LON 3468 9531 3464 9546 3463 9588 3454 9565
3455 9532 3468 9509What 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 30, 9:22 PM CDT, 37 minutes earlier.
Area forecast discussion, May 30, 9:22 PM CDT, 37 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 922 PM CDT WED MAY 30 2001 NEW SEVERE THUNDERSTORM WATCH JUST ISSUED FOR SE OK VALID UNTIL 100 AM. THIS REPLACES THE TORNADO WATCH. ISOLATED SUPERCELLS CONTINUE ALONG/JUST N OF OUTFLOW BOUNDARY ACROSS SE OK. DIRECTIONAL SHEAR REMAINS MARGINAL...BUT DEGREE OF INSTABILITY WILL SUPPORT SEVERE STORMS FOR THE NEXT SEVERAL HOURS. STORMS ARE SHOWING A GRADUAL SEWD DRIFT WHICH WILL PUT THEM INTO FAR SE OK LATER THIS EVENING. ISOLATED ACTIVITY FARTHER N ALONG COLD FRONT HAS BEEN MARGINALLY SEVERE. UPDATED ZONES OUT ASAP. FCSTID = 18 .TSA... AR...NONE. OK...SEVERpE THUNDERSTORM WATCH UNTIL 100 AM CDT THURSDAY FOR ZONES OKZ049...OKZ053...OKZ072>076.
In the hours before
Local storm report, May 30, 7:51 PM CDT, 2 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
751 PM CDT WED MAY 30 2001
....DELAYED REPORTS....
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1140 PM BURBANK OK WIND DAMAGE
05/29/01 OSAGE LARGE TREE LIMBS BROKEN
1150 PM FORAKER OK 60 MPH TSTM GUST
05/29/01 OSAGE
1150 PM FORAKER OK 1 INCH HAIL
05/29/01 OSAGE
0500 AM 6 SSW PETTIT OK FLOOD
05/30/01 CHEROKEE INDIAN ROAD FLOODED
0908 AM BOX OK FLOOD
05/30/01 SEQUOYAH FLOODED ROADS VCNTY BOX
0915 AM HENRYETTA OK FLOOD
05/30/01 OKMULGEE MANY AREA ROADS
0925 AM OKEMAH OK FLOOD
05/30/01 OKFUSKEE AREA ROADSLocal storm report, May 30, 9:06 PM CDT, 53 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
906PM CDT WED MAY 30 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0825 PM 1 N HIGGINS OK 1 INCH HAIL
05/30/01 LATIMER EMERGENCY MANAGEMENT
REPORT
0845 PM 6 S WILBURTON OK 1.75 INCH HAIL
05/30/01 LATIMER EMERGENCY MANAGEMENT
REPORT
DRMLocal storm report, May 30, 9:33 PM CDT, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
933 PM CDT WED MAY 30 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0825 PM 1 N HIGGINS OK 1 INCH HAIL
05/30/01 LATIMER REPORTED BY WILBURTON
EOC.
0845 PM 6 S WILBURTON OK 1.75 INCH HAIL
05/30/01 LATIMER REPORTED BY WILBURTON
EOC.
0850 PM KIOWA OK 1.25 INCH HAIL
05/30/01 PITTSBURG REPORTED BY MCALESTER
q EOC.
DRMLocal storm report, May 30, 9:54 PM CDT, 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
954 PM CDT WED MAY 30 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0930 PM 1 SE YANUSH OK TORNADO
05/30/01 LATIMER BRIEF TOUCHDOWN.
EMERGENCY MANAGEMENT
REPORT.
DRMThe office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:31 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 44 min |
| May 30, 7:58 PM CDT | Tornado Warning | TSA | Latimer, Pittsburg | 47 min |
| May 30, 8:40 PM CDT | Tornado Warning | TSA | Pittsburg | 50 min |
| May 30, 8:42 PM CDT | Tornado Warning | TSA | Latimer | 48 min |
| May 30, 9:11 PM CDT | Flash Flood Warning | TSA | Pittsburg | 3 hr |
| May 30, 9:15 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 45 min |
| May 30, 9:26 PM CDT | Severe Thunderstorm Warning | TSA | Haskell | 49 min |
| May 30, 9:28 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, Pittsburg | 47 min |
| May 30, 9:50 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 40 min |
| May 30, 10:15 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 45 min |
| May 30, 10:25 PM CDT | Flash Flood Warning | TSA | Pushmataha | 3 hr |
| May 30, 10:38 PM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 52 min |
| May 30, 10:58 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 47 min |
| May 31, 12:02 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 43 min |
| May 31, 12:23 AM CDT | Severe Thunderstorm Warning | TSA | Pushmataha | 52 min |
| May 31, 12:56 AM CDT | Flash Flood Warning | TSA | Pushmataha | 3 hr |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2001Every severe thunderstorm warning in 2001
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.