Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 181, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 5, 2020, 12:44 AM CDT for LeFlore County, Pushmataha County, Oklahoma. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 5, 2020, 12:44 AM CDT (05:44 UTC)
- Expired
- May 5, 2020, 1:30 AM CDT
- In force
- 46 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.25 in
- Wind
- 60.0 mph
Counties LeFlore County, OK, Pushmataha County, OK
The radar
The Western Arkansas radar (KSRX), 94 km from the middle of the area, began a volume at 05:46 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.
The nearest sounding before it
Springfield, MO (KSGF), launched 00:00Z, 5.7 hours before the alert went out and 273 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
- 135 J/kg
- Mixed-layer CIN
- -464 J/kg
- Mixed-layer LCL
- 494 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 436 m²/s²
- 0-3 km storm-relative helicity
- 495 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 6.7
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 May 5, 12:19 AM CDT, 25 minutes earlier.
Area forecast discussion, May 5, 12:19 AM CDT, 25 minutes before
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</html>Hazardous weather outlook, May 4, 5:22 PM CDT, 7 hours 22 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 522 PM CDT Mon May 4 2020 ARZ001-002-010-011-019-020-029-OKZ049-053>076-051000- Adair OK-Benton AR-Carroll AR-Cherokee OK-Choctaw OK-Craig OK- Crawford AR-Creek OK-Delaware OK-Franklin AR-Haskell OK-Latimer OK- Le Flore OK-Madison AR-Mayes OK-McIntosh OK-Muskogee OK-Nowata OK- Okfuskee OK-Okmulgee OK-Osage OK-Ottawa OK-Pawnee OK-Pittsburg OK- Pushmataha OK-Rogers OK-Sebastian AR-Sequoyah OK-Tulsa OK-Wagoner OK- Washington OK-Washington AR- 522 PM CDT Mon May 4 2020 ...SIGNIFICANT SEVERE STORM POTENTIAL THROUGH THIS EVENING...VERY LARGE HAIL...DAMAGING WINDS AND ONE OR TWO STRONG TORNADOES... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Tonight. TORNADO. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. SEVERE THUNDERSTORM. RISK...Critical. AREA...Mainly Southeast of Interstate 44. ONSET...Ongoing. FLASH FLOOD. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. HEAVY RAIN. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. DISCUSSION... Scattered strong to severe thunderstorms have developed late this afternoon along and just ahead of a strong cold front that is nearing the Interstate 44 corridor. A few tornadoes, with one or two strong tornadoes, are possible into the early evening hours. Very large hail to baseball size and winds to 70 miles an hour will also be possible with the strongest storms. Locally heavy rainfall may also result in some localized flooding issues. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Expected. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. TUESDAY...High Wind Potential. WEDNESDAY...No Hazards. THURSDAY...Thunderstorm Potential...Heavy Rain Potential. FRIDAY...Thunderstorm Potential. SATURDAY and SUNDAY...No Hazards. EXTENDED DISCUSSION... After a dry Tuesday and Wednesday, thunderstorm chances along with a severe weather threat return for Thursday into early Friday. weather.gov/tulsa contains additional information.
In the hours before
Special weather statement, May 4, 10:41 PM CDT, 2 hours 3 minutes before
Special Weather Statement National Weather Service Tulsa OK 1041 PM CDT Mon May 4 2020 ARZ019-OKZ069-072-050415- Crawford AR-Adair OK-Sequoyah OK- 1041 PM CDT Mon May 4 2020 ...SIGNIFICANT WEATHER ADVISORY FOR WEST CENTRAL CRAWFORD... NORTHEASTERN SEQUOYAH AND SOUTH CENTRAL ADAIR COUNTIES UNTIL 1115 PM CDT... At 1041 PM CDT, a strong thunderstorm was located near Brushy, moving east at 45 mph. Nickel size hail and wind gusts up to 50 mph will be possible with this storm. Locations in or near the path include... Cedarville... Marble City... Brushy Lake State Park... Brushy... Short... Uniontown... Dora... This includes Interstate 40 in Oklahoma between mile markers 326 and 328. A Tornado Watch remains in effect until midnight CDT for northwestern Arkansas...and east central Oklahoma. LAT...LON 3555 9488 3567 9468 3562 9437 3541 9445 TIME...MOT...LOC 0341Z 285DEG 37KT 3559 9471
Special weather statement, May 4, 11:07 PM CDT, 1 hour 37 minutes before
Special Weather Statement
National Weather Service Tulsa OK
1107 PM CDT Mon May 4 2020
ARZ019-029-050430-
Sebastian AR-Crawford AR-
1107 PM CDT Mon May 4 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHWESTERN CRAWFORD AND
NORTHERN SEBASTIAN COUNTIES UNTIL 1130 PM CDT...
At 1107 PM CDT, a strong thunderstorm was located 4 miles west of
Figure Five, moving east at 40 mph.
Nickel size hail and wind gusts up to 50 mph will be possible with
this storm.
Locations in or near the path include...
Fort Smith... Van Buren...
Cedarville... Alma...
Lavaca... Mulberry...
Dyer... Rudy...
Figure Five... Kibler...
Concord... Shibley...
Furry...
This includes the following highways,
Interstate 40 in Arkansas between mile markers 1 and 22.
Interstate 540 between mile markers 1 and 6.
Interstate 49 between mile markers 22 and 25.
A Tornado Watch remains in effect until midnight CDT for northwestern
and west central Arkansas...and east central Oklahoma.
LAT...LON 3529 9412 3541 9444 3542 9444 3558 9438
3554 9405
TIME...MOT...LOC 0407Z 286DEG 36KT 3550 9444Special weather statement, May 4, 11:13 PM CDT, 1 hour 31 minutes before
Special Weather Statement National Weather Service Tulsa OK 1113 PM CDT Mon May 4 2020 ARZ029-OKZ072-076-050445- Sebastian AR-Sequoyah OK-Le Flore OK- 1113 PM CDT Mon May 4 2020 ...SIGNIFICANT WEATHER ADVISORY FOR NORTHERN SEBASTIAN...SOUTHEASTERN SEQUOYAH AND NORTHEASTERN LE FLORE COUNTIES UNTIL 1145 PM CDT... At 1113 PM CDT, strong thunderstorms were located along a line extending from 2 miles northeast of Roland to 2 miles west of Muldrow. Movement was east at 40 mph. Penny size hail will be possible with these storms. Locations in or near the path include... Fort Smith... Greenwood... Barling... Muldrow... Roland... Arkoma... Hackett... Bonanza... Moffett... Excelsior... Fort Smith Regional Airport... Jenny Lind... Central City... Braden... Mill Creek... Rye Hill... Cottonwood... This includes the following highways, Interstate 40 in Oklahoma between mile markers 315 and 325. Interstate 540 between mile markers 7 and 14. A Tornado Watch remains in effect until midnight CDT for northwestern and west central Arkansas...and southeastern and east central Oklahoma. LAT...LON 3512 9431 3540 9467 3544 9452 3528 9411 TIME...MOT...LOC 0413Z 291DEG 36KT 3545 9448 3540 9464
Special weather statement, May 4, 11:38 PM CDT, 1 hour 6 minutes before
Special Weather Statement
National Weather Service Tulsa OK
1138 PM CDT Mon May 4 2020
ARZ020-029-050515-
Sebastian AR-Franklin AR-
1138 PM CDT Mon May 4 2020
...SIGNIFICANT WEATHER ADVISORY FOR SOUTHERN FRANKLIN AND
NORTHEASTERN SEBASTIAN COUNTIES UNTIL 1215 AM CDT...
At 1138 PM CDT, a strong thunderstorm was located 4 miles northwest
of Charleston, moving east at 60 mph.
Penny size hail will be possible with this storm.
Locations in or near the path include...
Charleston... Branch...
Denning... Bloomer...
Caulksville... Etna...
Peter Pender... Vesta...
Cecil... Ursula...
Meg...
A Tornado Watch remains in effect until midnight CDT for northwestern
and west central Arkansas.
LAT...LON 3537 9371 3537 9375 3540 9379 3542 9381
3531 9381 3532 9392 3523 9392 3529 9414
3544 9408 3545 9407 3542 9371
TIME...MOT...LOC 0438Z 278DEG 50KT 3535 9408Local storm report, May 4, 11:39 PM CDT, 1 hour 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1139 PM CDT MON MAY 4 2020
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1128 PM HAIL FORT SMITH 35.39N 94.40W
05/04/2020 E1.00 INCH SEBASTIAN AR LAW ENFORCEMENT
REPORTED ON NORTH SIDE OF TOWN BY FORT SMITH PD.
&&
SRCSpecial weather statement, May 5, 12:41 AM CDT, 3 minutes before
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</html>The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 4, 7:06 PM CDT | Special Weather Statement | TSA | Ottawa | 39 min |
| May 4, 7:14 PM CDT | Special Weather Statement | TSA | Delaware | 31 min |
| May 4, 7:34 PM CDT | Special Weather Statement | TSA | Delaware | 26 min |
| May 4, 7:38 PM CDT | Special Weather Statement | TSA | Okmulgee | 37 min |
| May 4, 7:44 PM CDT | Special Weather Statement | TSA | Wagoner | 31 min |
| May 4, 8:09 PM CDT | Special Weather Statement | TSA | Wagoner | 36 min |
| May 4, 8:10 PM CDT | Special Weather Statement | TSA | Ottawa | 20 min |
| May 4, 8:14 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Wagoner | 46 min |
| May 4, 8:31 PM CDT | Special Weather Statement | TSA | Adair, Cherokee, Muskogee | 29 min |
| May 4, 8:48 PM CDT | Severe Thunderstorm Warning | TSA | Muskogee | 27 min |
| May 4, 8:49 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee | 41 min |
| May 4, 9:00 PM CDT | Severe Thunderstorm Warning | TSA | Cherokee, Sequoyah | 45 min |
| May 4, 9:29 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 35 min |
| May 4, 10:41 PM CDT | Special Weather Statement | TSA | Sequoyah | 34 min |
| May 4, 10:48 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 27 min |
| May 4, 11:24 PM CDT | Severe Thunderstorm Warning | TSA | Sequoyah | 25 min |
| May 5, 12:41 AM CDT | Special Weather Statement | TSA | Latimer | 34 min |
| May 5, 1:33 AM CDT | Special Weather Statement | TSA | LeFlore | 27 min |
| May 5, 4:08 AM CDT | Special Weather Statement | TSA | Pushmataha | 52 min |
| May 5, 4:43 AM CDT | Special Weather Statement | TSA | Choctaw | 47 min |
| May 5, 5:29 AM CDT | Special Weather Statement | TSA | Choctaw | 46 min |
| May 4, 7:34 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Carroll | 56 min |
| May 4, 8:08 PM CDT | Special Weather Statement | TSA | Benton | 37 min |
| May 4, 8:19 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Washington | 41 min |
| May 4, 8:46 PM CDT | Areal Flood Advisory | TSA | Washington | 119 min |
| May 4, 9:24 PM CDT | Special Weather Statement | TSA | Crawford | 36 min |
| May 4, 9:44 PM CDT | Special Weather Statement | TSA | Crawford, Franklin | 31 min |
| May 4, 10:01 PM CDT | Special Weather Statement | TSA | Sebastian | 29 min |
| May 4, 10:12 PM CDT | Special Weather Statement | TSA | Franklin, Sebastian | 33 min |
| May 4, 10:22 PM CDT | Special Weather Statement | TSA | Sebastian | 23 min |
| May 4, 10:36 PM CDT | Severe Thunderstorm Warning | TSA | Franklin, Sebastian | 17 min |
| May 4, 11:07 PM CDT | Special Weather Statement | TSA | Crawford | 23 min |
| May 4, 11:13 PM CDT | Special Weather Statement | TSA | Sebastian | 32 min |
| May 4, 11:38 PM CDT | Special Weather Statement | TSA | Franklin | 37 min |
| May 4, 11:46 PM CDT | Severe Thunderstorm Warning | TSA | Franklin | 29 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2020Every severe thunderstorm warning in 2020
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.