Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 128, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 12, 2023, 9:04 PM CDT for Osage County, Oklahoma. It was in force for 41 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 12, 2023, 9:04 PM CDT (02:04 UTC)
- Expired
- May 12, 2023, 9:45 PM CDT
- In force
- 41 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.25 in
- Wind
- 60.0 mph
County Osage County, OK
The radar
The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 02:06 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.
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 12, 3:39 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 2.1 hours before the alert went out and 181 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
- 3755 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1086 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.5
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 12, 6:48 PM CDT, 2 hours 16 minutes earlier.
Area forecast discussion, May 12, 6:48 PM CDT, 2 hours 16 minutes before
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</html>Hazardous weather outlook, May 12, 5:09 PM CDT, 3 hours 55 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 509 PM CDT Fri May 12 2023 ARZ001-002-010-011-019-020-029-OKZ049-053>076-131000- 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- 509 PM CDT Fri May 12 2023 ...SEVERE WEATHER POSSIBLE THIS EVENING... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Tonight. TORNADO. RISK...Limited. AREA...Eastern Oklahoma and West Central Arkansas. ONSET...This Evening. SEVERE THUNDERSTORM. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. FLASH FLOOD. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...This Evening. HEAVY RAIN. RISK...Limited. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...This Evening. DISCUSSION... Scattered thunderstorms are expected to develop across parts of eastern Oklahoma early this evening, and eventually move into parts of western Arkansas later this evening or overnight. The greater severe weather threat will likely be with storm development from central into northeast Oklahoma early this evening, shifting to the south and east by late evening and overnight. Large hail and damaging winds will be the primary threats, though a non-zero threat of tornadoes may develop with more organized activity. Locally heavy rainfall may result in some localized flooding issues as well. The overall severe weather threat will gradually diminish by late this evening into the overnight hours. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Saturday through Thursday. SATURDAY through THURSDAY...Thunderstorm Potential. EXTENDED DISCUSSION... Daily chances of thunderstorms will continue into next week as the weather pattern remains unsettled. The greatest potential for thunderstorms will be over the weekend as an upper disturbance lifts north across west Texas, and a deep moist southerly flow aloft persists. Locally heavy rain will be the main concern during this time. However, a few storms may become strong to marginally severe. Thunderstorm potential may begin to decrease some toward the middle of next week as the upper flow pattern changes. A frontal boundary pushing in from the north will likely raise storm chances again by late next week. weather.gov/tulsa contains additional information.
In the hours before
Special weather statement, May 12, 5:47 PM CDT, 3 hours 17 minutes before
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</html>Special weather statement, May 12, 8:44 PM CDT, 20 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 12, 8:44 PM CDT | Special Weather Statement | TSA | Osage | 31 min |
| May 12, 9:17 PM CDT | Special Weather Statement | TSA | Osage | 28 min |
| May 12, 9:22 PM CDT | Special Weather Statement | TSA | Pawnee | 38 min |
| May 12, 9:46 PM CDT | Special Weather Statement | TSA | Osage | 44 min |
| May 12, 9:50 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 55 min |
| May 12, 10:01 PM CDT | Special Weather Statement | TSA | Pawnee | 29 min |
| May 12, 10:30 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 45 min |
| May 12, 10:45 PM CDT | Special Weather Statement | TSA | Osage | 60 min |
| May 12, 10:55 PM CDT | Special Weather Statement | TSA | Osage | 50 min |
| May 12, 11:07 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 38 min |
| May 12, 11:33 PM CDT | Special Weather Statement | TSA | Pawnee | 42 min |
| May 12, 11:46 PM CDT | Areal Flood Advisory | TSA | Pawnee | 3 hr |
| May 13, 12:18 AM CDT | Special Weather Statement | TSA | Creek, Tulsa | 42 min |
| May 13, 12:59 AM CDT | Special Weather Statement | TSA | Rogers, Tulsa | 46 min |
| May 13, 1:55 AM CDT | Special Weather Statement | TSA | Delaware, Ottawa | 35 min |
| May 13, 3:36 AM CDT | Special Weather Statement | TSA | McIntosh | 24 min |
| May 13, 1:33 PM CDT | Special Weather Statement | TSA | Latimer | 42 min |
| May 13, 2:00 PM CDT | Special Weather Statement | TSA | LeFlore | 45 min |
| May 13, 4:29 PM CDT | Special Weather Statement | TSA | LeFlore | 46 min |
| May 13, 4:50 PM CDT | Special Weather Statement | TSA | Pushmataha | 40 min |
| May 13, 4:59 PM CDT | Special Weather Statement | TSA | LeFlore | 46 min |
| May 13, 5:20 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore | 40 min |
| May 13, 5:46 PM CDT | Special Weather Statement | TSA | Creek | 44 min |
| May 13, 5:55 PM CDT | Special Weather Statement | TSA | Tulsa | 35 min |
| May 13, 6:32 PM CDT | Special Weather Statement | TSA | Creek, Tulsa | 43 min |
| May 13, 6:53 PM CDT | Special Weather Statement | TSA | Rogers | 37 min |
| May 13, 3:21 PM CDT | Special Weather Statement | TSA | Franklin | 39 min |
| May 13, 4:35 PM CDT | Special Weather Statement | TSA | Washington | 40 min |
| May 13, 5:52 PM CDT | Special Weather Statement | TSA | Sebastian | 38 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2023Every severe thunderstorm warning in 2023
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.