Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 412, NWS Tulsa, OK

September 24, 2023Choctaw County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 24, 2023, 11:45 PM CDT for Choctaw County, Oklahoma. It was in force for 28 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
Sep 24, 2023, 11:45 PM CDT (04:45 UTC)
Expired
Sep 25, 2023, 12:13 AM CDT
In force
28 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Choctaw County, OK

The radar

The Western Arkansas radar (KSRX), 178 km from the middle of the area, began a volume at 04:48 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

Fort Worth, TX (KFWD), launched 00:00Z, 4.8 hours before the alert went out and 209 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.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2023-09-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 907 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2023-09-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
907 J/kg
Mixed-layer CIN
-145 J/kg
Mixed-layer LCL
2110 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
22 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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 Sep 24, 10:18 PM CDT, 1 hour 27 minutes earlier.

Area forecast discussion, Sep 24, 10:18 PM CDT, 1 hour 27 minutes before
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Hazardous weather outlook, Sep 24, 8:01 PM CDT, 3 hours 44 minutes before
Hazardous Weather Outlook
National Weather Service Tulsa OK
801 PM CDT Sun Sep 24 2023

ARZ001-002-010-011-019-020-029-OKZ049-053>076-251030-
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-
801 PM CDT Sun Sep 24 2023

This Outlook is for Northwest and West Central Arkansas as well as
much of Eastern Oklahoma.

.DAY ONE...This Afternoon and Tonight.

SEVERE THUNDERSTORM.
    RISK...Limited.
    AREA...Southeast Oklahoma.
    ONSET...This evening.

HEAVY RAIN.
    RISK...Limited.
	AREA...Southeast Oklahoma.
    ONSET...Late afternoon or early evening.

DISCUSSION...

A few strong to severe thunderstorms are possible across far
southeast Oklahoma this evening. Large hail is the main threat.
Locally heavy rainfall is possible with any thunderstorm activity
and localized flooding may once again become a concern, especially
if multiple rounds of storms move over the same areas, or over any
areas that have seen excessive rainfall in the previous days.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Local Spotter Activation May Be Needed.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.
MONDAY...Thunderstorm Potential.
TUESDAY THROUGH SATURDAY...No Hazards.

EXTENDED DISCUSSION...
Widely scattered showers with a few isolated thunderstorms could
linger across far southeast Oklahoma on Monday. The remainder of
the week will remain dry with seasonably warm conditions.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Sep 24, 5:56 PM CDT, 5 hours 49 minutes before
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Special weather statement, Sep 24, 6:26 PM CDT, 5 hours 19 minutes before
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Special weather statement, Sep 24, 6:33 PM CDT, 5 hours 12 minutes before
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The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 24, 10:55 PM CDTSevere Thunderstorm WarningTSAChoctaw50 min
Sep 24, 11:50 PM CDTDense Fog AdvisoryTSAAdair, Cherokee, Delaware, Haskell, Latimer, McIntosh and 6 more10 hr
Sep 25, 12:24 AM CDTSpecial Weather StatementTSAChoctaw36 min
Sep 25, 2:30 AM CDTSpecial Weather StatementTSAChoctaw30 min
Sep 25, 2:41 AM CDTSevere Thunderstorm WarningTSAChoctaw49 min
Sep 25, 4:02 AM CDTSpecial Weather StatementTSAChoctaw58 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.