Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 100, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 19, 2023, 7:54 PM CDT for Osage County, Oklahoma. It was in force for 39 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
- Apr 19, 2023, 7:54 PM CDT (00:54 UTC)
- Expired
- Apr 19, 2023, 8:33 PM CDT
- In force
- 39 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 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 00:59 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 |
|---|---|---|---|
| Apr 19, 6:40 PM CDT | Tornado Watch | SPC | 5 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 0.9 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
- 1620 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1145 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 427 m²/s²
- 0-3 km storm-relative helicity
- 523 m²/s²
- Significant tornado parameter
- 4.0
- Supercell composite
- 19.0
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 Apr 19, 6:54 PM CDT, 1 hour earlier.
Area forecast discussion, Apr 19, 6:54 PM CDT, 1 hour before
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</html>Hazardous weather outlook, Apr 19, 5:15 PM CDT, 2 hours 39 minutes before
Hazardous Weather Outlook National Weather Service Tulsa OK 515 PM CDT Wed Apr 19 2023 ARZ001-002-010-011-019-020-029-OKZ049-053>076-201015- 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- 515 PM CDT Wed Apr 19 2023 ...SEVERE THUNDERSTORMS POSSIBLE THIS EVENING INTO THURSDAY ACROSS EASTERN OKLAHOMA AND WESTERN ARKANSAS... This Outlook is for Northwest and West Central Arkansas as well as much of Eastern Oklahoma. .DAY ONE...Today and Tonight. TORNADO. RISK...Limited. AREA...Eastern Oklahoma. ONSET...This Evening. SEVERE THUNDERSTORM. RISK...Elevated. AREA...Eastern Oklahoma. ONSET...This Evening. SIGNIFICANT WINDS. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. FIRE WEATHER DANGER. RISK...Elevated. AREA...Eastern Oklahoma and Northwest Arkansas. ONSET...Ongoing. DISCUSSION... Scattered severe thunderstorms have developed over central Oklahoma, and will move northeast. These storms may move into eastern Oklahoma early this evening, and pose a threat of severe weather generally south of Highway 412 and west of Highway 75, with less favorable conditions east of that region limiting the eastward extent of the threat. The main hazard will be large hail and damaging wind, however a low-end tornado threat will exist early this evening. A cold front will move into northeast Oklahoma just before sunrise on Thursday, with more storms possible along the frontal boundary. Strong and gusty southerly winds will continue through tonight. Elevated fire weather concerns will continue this evening across a large portion of eastern Oklahoma and northwest Arkansas. SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT... Activation of the Regional Spotter Network Likely. .DAYS TWO THROUGH SEVEN...Thursday through Tuesday. THURSDAY...Severe Thunderstorm Potential...High Wind Potential...Heavy Rain Potential. FRIDAY...No Hazards. SATURDAY...Very High Fire Weather Potential. SUNDAY...No Hazards. MONDAY...Thunderstorm Potential...High Wind Potential. TUESDAY...Thunderstorm Potential...High Wind Potential...Heavy Rain Potential. EXTENDED DISCUSSION... Thunderstorms could be ongoing along the front Thursday morning as boundary moves into Northeast Oklahoma. The overall trend in storm intensity should be weakening as the line moves through northeast Oklahoma, but a few strong to severe storms will be possible, with large hail and damaging winds the main threat, though a tornado cannot be ruled out along the leading edge. As the front moves into southeast Oklahoma and west central Arkansas Thursday afternoon, new storm development is likely along and ahead of the front. A highly unstable atmosphere along with strong shear will support severe storms capable of large to very large hail and tornadoes, especially with the early more discrete development. Storms should push south of the region by late afternoon, with some lingering showers and storms possible behind the front through Friday as the main storm system is slow to exit the area. Much cooler weather will follow the cold front for the weekend, with a freeze possible across northern portions of the forecast area both Saturday and Sunday morning. More shower and storm chances arrive on Sunday and last into the middle of next week as a little more active pattern sets up across the central CONUS. weather.gov/tulsa contains additional information.
The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 8:31 PM CDT | Special Weather Statement | TSA | Osage | 14 min |
| Apr 19, 8:36 PM CDT | Special Weather Statement | TSA | Pawnee | 24 min |
| Apr 19, 9:00 PM CDT | Special Weather Statement | TSA | Pawnee | 45 min |
| Apr 19, 10:27 PM CDT | Severe Thunderstorm Warning | TSA | Creek, Okfuskee | 63 min |
| Apr 19, 10:40 PM CDT | Special Weather Statement | TSA | Osage | 35 min |
| Apr 19, 10:53 PM CDT | Special Weather Statement | TSA | Craig | 37 min |
| Apr 19, 11:00 PM CDT | High Wind Warning | TSA | Craig, Nowata, Ottawa, Washington | 44 min |
| Apr 19, 11:00 PM CDT | Wind Advisory | TSA | Craig, Nowata, Ottawa, Washington | 8 hr |
| Apr 19, 11:18 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 42 min |
| Apr 19, 11:51 PM CDT | Severe Thunderstorm Warning | TSA | Okfuskee, Okmulgee | 39 min |
| Apr 20, 12:20 AM CDT | Severe Thunderstorm Warning | TSA | Muskogee, Okmulgee | 26 min |
| Apr 20, 12:24 AM CDT | Special Weather Statement | TSA | Rogers | 36 min |
| Apr 20, 12:37 AM CDT | Special Weather Statement | TSA | Tulsa | 23 min |
| Apr 20, 12:44 AM CDT | Special Weather Statement | TSA | Wagoner | 31 min |
| Apr 20, 1:09 AM CDT | Special Weather Statement | TSA | Mayes, Wagoner | 36 min |
| Apr 20, 6:39 AM CDT | Special Weather Statement | TSA | Creek | 51 min |
| Apr 20, 7:34 AM CDT | Special Weather Statement | TSA | Creek | 26 min |
| Apr 20, 12:39 PM CDT | Special Weather Statement | TSA | Pushmataha | 36 min |
| Apr 20, 1:09 PM CDT | Special Weather Statement | TSA | Pushmataha | 36 min |
| Apr 20, 1:26 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pushmataha | 49 min |
| Apr 20, 1:56 PM CDT | Tornado Warning | TSA | Pushmataha | 49 min |
| Apr 20, 2:12 PM CDT | Special Weather Statement | TSA | Choctaw | 33 min |
| Apr 20, 2:19 PM CDT | Special Weather Statement | TSA | Sequoyah | 26 min |
| Apr 20, 2:25 PM CDT | Severe Thunderstorm Warning | TSA | Haskell, Muskogee, Sequoyah | 50 min |
| Apr 20, 2:44 PM CDT | Special Weather Statement | TSA | Pushmataha | 46 min |
| Apr 20, 2:47 PM CDT | Severe Thunderstorm Warning | TSA | LeFlore, Pushmataha | 32 min |
| Apr 20, 3:26 PM CDT | Special Weather Statement | TSA | LeFlore | 49 min |
| Apr 20, 3:43 PM CDT | Special Weather Statement | TSA | Sequoyah | 47 min |
| Apr 20, 5:16 PM CDT | Special Weather Statement | TSA | Choctaw | 29 min |
| Apr 20, 5:40 PM CDT | Special Weather Statement | TSA | Pushmataha | 35 min |
| Apr 20, 1:31 PM CDT | Special Weather Statement | TSA | Benton | 29 min |
| Apr 20, 1:43 PM CDT | Special Weather Statement | TSA | Madison | 32 min |
| Apr 20, 1:56 PM CDT | Severe Thunderstorm Warning | TSA | Carroll | 49 min |
| Apr 20, 2:12 PM CDT | Severe Thunderstorm Warning | TSA | Benton, Carroll | 33 min |
| Apr 20, 3:06 PM CDT | Special Weather Statement | TSA | Franklin | 24 min |
| Apr 20, 3:16 PM CDT | Special Weather Statement | TSA | Crawford | 29 min |
| Apr 20, 3:18 PM CDT | Severe Thunderstorm Warning | TSA | Carroll | 27 min |
| Apr 20, 3:29 PM CDT | Special Weather Statement | TSA | Franklin | 31 min |
| Apr 20, 3:34 PM CDT | Severe Thunderstorm Warning | TSA | Crawford, Franklin, Madison, Washington | 41 min |
| Apr 20, 3:52 PM CDT | Special Weather Statement | TSA | Carroll | 23 min |
| Apr 20, 4:10 PM CDT | Severe Thunderstorm Warning | TSA | Carroll | 24 min |
| Apr 20, 4:20 PM CDT | Special Weather Statement | TSA | Crawford, Madison | 25 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.