Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 266, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 27, 2001, 12:38 PM CDT for Choctaw County, Oklahoma. It was in force for 67 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
- Jun 27, 2001, 12:38 PM CDT (17:38 UTC)
- Expired
- Jun 27, 2001, 1:45 PM CDT
- In force
- 67 min
- Issued by
- NWS Tulsa, OK
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Choctaw County, OK
The radar
The Norman radar (KTLX), 198 km from the middle of the area, began a volume at 17:38 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 27, 12:42 PM CDT | Hail 0.75 | Bluff, 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 nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 5.6 hours before the alert went out and 186 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
- 2007 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 1047 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -2 m²/s²
- 0-3 km storm-relative helicity
- 66 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KTSA 271739 SVRTUL OKC023-271845- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TULSA OK 1238 PM CDT WED JUN 27 2001 THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WESTERN CHOCTAW COUNTY IN SOUTHEAST OKLAHOMA * UNTIL 145 PM CDT * AT 1238 PM CDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CENTERED NEAR OF BOSWELL...DRIFTING SOUTHEAST AT ABOUT 10 MPH. * SOME LOCATIONS NEAR THE PATH OF THIS STORM INCLUDE...BOSWELL. HAIL TO THE SIZE OF DIMES AND WIND GUSTS TO 60 MPH CAN BE EXPECTED IN THE WARNED AREA...ALONG WITH VERY HEAVY RAIN. LAT...LON 3388 9591 3393 9564 3416 9585 3414 9594
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 27, 10:10 AM CDT, 2 hours 28 minutes earlier.
Area forecast discussion, Jun 27, 10:10 AM CDT, 2 hours 28 minutes before
EASTERN OKLAHOMA/NORTHWEST ARKANSAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE TULSA OK 1010 AM CDT WED JUN 27 2001 BAND OF SHOWERS AND THUNDERSTORMS HAS SET UP ACROSS CENTRAL OK JUST TO THE WEST OF THE AREA OVER THE PAST FEW HOURS. ACTIVITY SHOULD REMAIN JUST TO THE WEST AS STORMS DRIFTS TO THE SOUTH IN CIRCULATION AROUND WESTERN SKY/TAN UPPER LOW. OTHER CONVECTION ONGOING OVER SOUTHWESTERN MO CLOSER TO THE UPPER LOW...WHILE ALLS QUIET OVER EASTERN OK AND NORTHWEST AR FOR THE MOMENT. MORNING SOUNDINGS SHOW MID LEVEL TEMPS (ROUGHLY 750MB AND ABOVE) HAVE COOLER A FEW DEGREES OVER THE PAST 24 HOURS WITH UPPER LOW DRAWING CLOSER. WITH AFTERNOON HEATING...EXPECT CONVECTION TO FIRE MAINLY IN EASTERN AREAS AGAIN SIMILAR TO YESTERDAY. CURRENT FORECAST LOOKS FINE...SO WILL WAIT AND UPDATE AROUND 16Z. WILL MAINLY JUST REMOVE ANY REFERENCE TO AFTERNOON WORDING...BUT SEE IF TEMPS/WINDS NEED ANY TWEAKING AT THAT TIME. .TSA... AR...NONE. OK...NONE.
In the hours before
Local storm report, Jun 27, 9:30 AM CDT, 3 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
930 AM CDT WED JUN 27 2001
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0430 PM ST PAUL AR WIND DAMAGE
06/26/01 MADISON NUMBEROUS TREE LIMBS
DOWN PUBLIC REPORTLocal storm report, Jun 27, 12:22 PM CDT, 16 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1222 PM CDT WED JUN 27 2001
DELAYED FROM TUESDAY JUNE 26...
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0455 PM 1 E BALDWIN AR WIND DAMAGE
06/26/01 WASHINGTON SEVERAL TREES DOWN AND
LARGE LIMBS DOWN (PUBLIC)
0455 PM 1 N BAL8DWIN AR .88 INCH HAIL
06/26/01 WASHINGTON (PUBLIC RPT)The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 27, 2:51 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 39 min |
| Jun 27, 3:41 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 49 min |
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.