Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 307, NWS Tulsa, OK

August 8, 2023Latimer County, Pushmataha County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 8, 2023, 6:51 AM CDT for Latimer County, Pushmataha 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
Aug 8, 2023, 6:51 AM CDT (11:51 UTC)
Expired
Aug 8, 2023, 7:30 AM CDT
In force
39 min
Issued by
NWS Tulsa, OK
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Latimer County, OK, Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 112 km from the middle of the area, began a volume at 11:52 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.

IssuedProductOfficeLasted
Aug 8, 1:27 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 11.9 hours before the alert went out and 201 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, Norman, OK at 00:00Z on 2023-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 139 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, Norman, OK at 00:00Z on 2023-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 square meters per square second.1939587897Sfc1 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
139 J/kg
Mixed-layer CIN
-575 J/kg
Mixed-layer LCL
1622 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
204 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

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 Aug 8, 6:48 AM CDT, 3 minutes earlier.

Area forecast discussion, Aug 8, 6:48 AM CDT, 3 minutes before
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Hazardous weather outlook, Aug 8, 4:51 AM CDT, 2 hours before
Hazardous Weather Outlook
National Weather Service Tulsa OK
451 AM CDT Tue Aug 8 2023

ARZ001-002-010-011-019-020-029-OKZ049-053>076-091000-
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-
451 AM CDT Tue Aug 8 2023

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

.DAY ONE...Today and Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

HEAVY RAIN AND FLASH FLOOD.
	RISK...Limited.
	AREA...Along and South of Interstate 40.
	ONSET...Ongoing.

DISCUSSION...
Widespread thunderstorms are ongoing this morning across much of
eastern Oklahoma and western Arkansas. Most of the storms will
remain below severe limits, but a few thunderstorms may produce
large hail up to the size of a half dollar and damaging wind gusts
around 60 mph. These thunderstorms are also producing locally
heavy rainfall, especially along and just south of Interstate 40,
which could lead to ponding of water on roadways and minor
flooding of low-lying areas. The morning thunderstorms are
expected to shift to the east through the morning, although a
front draped across southeast Oklahoma may provide a focus for
isolated thunderstorm development once again this afternoon.

Much of the evening should remain dry, but a thunderstorm complex
expected to develop to the north in Kansas may move into parts of
northeast Oklahoma and far northwest Arkansas after midnight
tonight, with a limited threat for damaging winds.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY...Severe Thunderstorm Potential...High Wind Potential...
            Dangerous Heat Potential...Heavy Rain Potential.
THURSDAY THROUGH MONDAY...Thunderstorm Potential...Dangerous Heat Potential.

EXTENDED DISCUSSION...
The threat for severe thunderstorms will increase further
Wednesday afternoon and evening, as a potent upper level storm
system swings through the Central Plains. Instability and wind
fields will support a threat for large hail to the size of golf
balls, damaging wind gusts to 70 mph and a few tornadoes.
Thunderstorms should shift east of the area by midnight.

Heat and humidity will make a return to the region for the latter
half of the week, with widespread heat index values above 105
forecast Wednesday and again Friday, lasting through the weekend.
Heat advisories and warnings may be required for parts of the area
through this period.

The upper level pattern will also support continued nightly
thunderstorm activity beginning Thursday night, especially across
northeast Oklahoma and northwest Arkansas.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Aug 8, 5:18 AM CDT, 1 hour 33 minutes before
Special Weather Statement
National Weather Service Tulsa OK
518 AM CDT Tue Aug 8 2023

OKZ073>075-081100-
Haskell OK-Pittsburg OK-Latimer OK-
518 AM CDT Tue Aug 8 2023

...Strong thunderstorms will impact portions of southern Haskell,
Latimer and northeastern Pittsburg Counties through 600 AM CDT...

At 518 AM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 6 miles southwest of Enterprise to 5 miles
southwest of Blocker. Movement was southeast at 35 mph.

HAZARD...Wind gusts up to 40 mph and penny size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects. Minor damage to outdoor objects
         is possible.

Locations in or near the path include...
Wilburton...                      Hartshorne...
Krebs...                          Quinton...
Red Oak...                        Mccurtain...
Kinta...                          Higgins...
Damon...                          Blocker...
Robbers Cave State Park...        Mc Curtain...
Enterprise...                     Lequire...
Haileyville...                    Gowen...
Panola...                         Dow...
Bache...                          Featherston...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
southeastern Oklahoma.

&&

LAT...LON 3493 9574 3527 9551 3518 9493 3515 9493
      3469 9522
TIME...MOT...LOC 1018Z 294DEG 32KT 3519 9548 3499 9561

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH
Local storm report, Aug 8, 5:35 AM CDT, 1 hour 16 minutes before
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Special weather statement, Aug 8, 5:57 AM CDT, 54 minutes before
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Special weather statement, Aug 8, 6:01 AM CDT, 50 minutes before
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Local storm report, Aug 8, 6:22 AM CDT, 29 minutes before
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Local storm report, Aug 8, 6:38 AM CDT, 13 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 8, 12:26 AM CDTSpecial Weather StatementTSALeFlore34 min
Aug 8, 12:43 AM CDTSevere Thunderstorm WarningTSALeFlore47 min
Aug 8, 12:46 AM CDTSpecial Weather StatementTSAHaskell29 min
Aug 8, 1:12 AM CDTSpecial Weather StatementTSAOkfuskee33 min
Aug 8, 1:14 AM CDTSevere Thunderstorm WarningTSALatimer, LeFlore46 min
Aug 8, 1:29 AM CDTSevere Thunderstorm WarningTSALeFlore31 min
Aug 8, 1:34 AM CDTSpecial Weather StatementTSAOsage26 min
Aug 8, 1:50 AM CDTSevere Thunderstorm WarningTSALeFlore40 min
Aug 8, 2:03 AM CDTSpecial Weather StatementTSAOsage, Pawnee27 min
Aug 8, 2:15 AM CDTSpecial Weather StatementTSAOkfuskee30 min
Aug 8, 2:28 AM CDTSpecial Weather StatementTSAHaskell32 min
Aug 8, 2:37 AM CDTSpecial Weather StatementTSAOsage38 min
Aug 8, 2:43 AM CDTSpecial Weather StatementTSAOkmulgee32 min
Aug 8, 2:52 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Pittsburg38 min
Aug 8, 3:10 AM CDTSpecial Weather StatementTSAMcIntosh50 min
Aug 8, 3:19 AM CDTSpecial Weather StatementTSAOkfuskee41 min
Aug 8, 3:29 AM CDTAreal Flood AdvisoryTSAMcIntosh, Pittsburg3 hr
Aug 8, 3:49 AM CDTAreal Flood AdvisoryTSAHaskell, Latimer, LeFlore, Muskogee84 min
Aug 8, 3:59 AM CDTSpecial Weather StatementTSAMcIntosh31 min
Aug 8, 4:19 AM CDTAreal Flood AdvisoryTSALeFlore67 min
Aug 8, 4:22 AM CDTAreal Flood AdvisoryTSAMcIntosh, Muskogee, Okfuskee, Okmulgee3 hr
Aug 8, 4:48 AM CDTSpecial Weather StatementTSAMcIntosh27 min
Aug 8, 5:08 AM CDTFlash Flood WarningTSAMcIntosh3 hr
Aug 8, 5:13 AM CDTFlash Flood WarningTSAHaskell, Latimer, LeFlore, Muskogee3 hr
Aug 8, 5:16 AM CDTSpecial Weather StatementTSAHaskell, LeFlore44 min
Aug 8, 5:18 AM CDTSpecial Weather StatementTSALatimer42 min
Aug 8, 5:24 AM CDTFlash Flood WarningTSAHaskell, McIntosh, Muskogee, Pittsburg3 hr
Aug 8, 5:26 AM CDTFlash Flood WarningTSALeFlore3 hr
Aug 8, 5:57 AM CDTSpecial Weather StatementTSALeFlore48 min
Aug 8, 6:01 AM CDTSpecial Weather StatementTSAPittsburg44 min
Aug 8, 6:21 AM CDTSevere Thunderstorm WarningTSALatimer, Pittsburg39 min
Aug 8, 7:36 AM CDTAreal Flood WarningTSAHaskell, Latimer, LeFlore, McIntosh, Muskogee, Okmulgee and 1 more5 hr

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.