Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 416, NWS Tulsa, OK

August 19, 2024Adair County, Sequoyah County, Oklahoma; Crawford County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 19, 2024, 1:36 AM CDT for Adair County, Sequoyah County, Oklahoma; Crawford County, Arkansas. 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 19, 2024, 1:36 AM CDT (06:36 UTC)
Expired: Aug 19, 2024, 2:15 AM CDT
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Crawford County, AR, Adair County, OK, Sequoyah County, OK

The radar

The Western Arkansas radar (KSRX), 44 km from the middle of the area, began a volume at 06:40 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, 6.6 hours before the alert went out and 154 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1790 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: -41 m²/s²
0-3 km storm-relative helicity: 25 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 Aug 18, 11:53 PM CDT, 1 hour 43 minutes earlier.

Area forecast discussion, Aug 18, 11:53 PM CDT, 1 hour 43 minutes before

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Hazardous weather outlook, Aug 18, 8:09 PM CDT, 5 hours 27 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
809 PM CDT Sun Aug 18 2024

ARZ001-002-010-011-019-020-029-OKZ049-053>076-191015-
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-
809 PM CDT Sun Aug 18 2024

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

.DAY ONE...This Evening through Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Far eastern Oklahoma and northwest Arkansas.
    ONSET...Mainly after midnight.

DISCUSSION...
The severe weather threat has ended in the short term as storms
move southeast of the region. A few strong to marginally severe
storms may redevelop overnight across portions of far eastern
Oklahoma and northwest Arkansas. Locally heavy rainfall is likely
with any thunderstorm activity that develops with localized
flooding possible.

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

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

EXTENDED DISCUSSION...
Dangerous heat may persist into Monday across far southeast
Oklahoma. Otherwise, relatively cooler temperatures are expected
by early in the work week behind Sunday's cold front and as the
upper ridge shifts westward away from the region.

A low chance of showers and thunderstorms will exist again Monday
night into Tuesday morning. Severe thunderstorms are not
expected.

weather.gov/tulsa contains additional information.

In the hours before

Local storm report, Aug 18, 10:24 PM CDT, 3 hours 12 minutes before

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Local storm report, Aug 18, 10:25 PM CDT, 3 hours 11 minutes before

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Local storm report, Aug 18, 10:26 PM CDT, 3 hours 10 minutes before

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Local storm report, Aug 18, 10:28 PM CDT, 3 hours 8 minutes before

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Special weather statement, Aug 19, 12:56 AM CDT, 40 minutes before

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Special weather statement, Aug 19, 1:27 AM CDT, 9 minutes before

Special Weather Statement
National Weather Service Tulsa OK
127 AM CDT Mon Aug 19 2024

ARZ019-OKZ069-072-190700-
Crawford AR-Adair OK-Sequoyah OK-
127 AM CDT Mon Aug 19 2024

...STRONG THUNDERSTORMS WILL IMPACT WEST CENTRAL CRAWFORD...
NORTHEASTERN SEQUOYAH AND SOUTHERN ADAIR COUNTIES THROUGH 200 AM
CDT...

At 127 AM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 4 miles southwest of Stilwell to 6 miles west of
Natural Dam. 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 hail damage to vegetation
         is possible.

Locations in or near the path include...
Van Buren...                      Cedarville...
Figure Five...                    Brushy...
Short...                          Shibley...
Uniontown...

This includes Interstate 40 in Arkansas between mile markers 0 and 7.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3547 9474 3545 9429 3575 9449 3577 9474
TIME...MOT...LOC 0627Z 328DEG 32KT 3578 9469 3567 9450

MAX HAIL SIZE...0.75 IN
MAX WIND GUST...40 MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 12:56 AM CDT	Special Weather Statement	TSA	Adair	34 min
Aug 19, 1:27 AM CDT	Special Weather Statement	TSA	Sequoyah	33 min
Aug 19, 2:06 AM CDT	Special Weather Statement	TSA	Sequoyah	24 min
Aug 19, 2:52 AM CDT	Special Weather Statement	TSA	LeFlore	38 min
Aug 19, 3:34 AM CDT	Special Weather Statement	TSA	Adair	41 min
Aug 19, 5:55 AM CDT	Areal Flood Advisory	TSA	Adair, Sequoyah	3 hr
Aug 18, 7:28 PM CDT	Severe Thunderstorm Warning	TSA	Crawford, Franklin, Sebastian	32 min
Aug 19, 1:54 AM CDT	Special Weather Statement	TSA	Sebastian	36 min
Aug 19, 2:19 AM CDT	Special Weather Statement	TSA	Sebastian	41 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2024 Severe Thunderstorm Warnings in Arkansas, 2024 Every severe thunderstorm warning in 2024

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.