Alert archive / Oklahoma / Special Weather Statements in 2023

Special Weather Statement, NWS Tulsa, OK

July 11, 2023Okfuskee County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Jul 11, 2023, 3:08 AM CDT for Okfuskee County, Oklahoma. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 11, 2023, 3:08 AM CDT (08:08 UTC)
Expired
Jul 11, 2023, 4:00 AM CDT
In force
52 min
Issued by
NWS Tulsa, OK
Hail
0.88 in
Wind
50

County Okfuskee County, OK

The radar

The Norman radar (KTLX), 94 km from the middle of the area, began a volume at 08:11 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

Norman, OK (KOUN), launched 00:00Z, 8.1 hours before the alert went out and 107 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 2023-07-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1640 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 2023-07-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
1640 J/kg
Mixed-layer CIN
-129 J/kg
Mixed-layer LCL
1234 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Jul 11, 12:35 AM CDT, 2 hours 33 minutes earlier.

Area forecast discussion, Jul 11, 12:35 AM CDT, 2 hours 33 minutes before
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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Jul 10, 5:32 PM CDT, 9 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Tulsa OK
532 PM CDT Mon Jul 10 2023

ARZ001-002-010-011-019-020-029-OKZ049-053>076-111030-
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-
532 PM CDT Mon Jul 10 2023

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

.DAY ONE...This Evening and Tonight.

SEVERE THUNDERSTORM.
	RISK...Limited.
	AREA...Generally West of a line from Bartlesville to Hugo.
	ONSET...After 1 AM.

DISCUSSION...
A thunderstorm complex is forecast to move southeast into eastern
Oklahoma and northwest Arkansas late tonight. Organized severe
weather is not anticipated through tonight, however a few strong
to marginally severe wind gusts may be possible generally along
and west of a line from Bartlesville to Hugo in eastern Oklahoma.

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

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
TUESDAY...Thunderstorm Potential...Dangerous Heat Potential.
WEDNESDAY...Thunderstorm Potential...High Wind Potential...Dangerous
			Heat Potential.
THURSDAY THROUGH SATURDAY...Thunderstorm Potential...Dangerous
Heat Potential. SUNDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Scattered thunderstorms are forecast to continue across eastern
Oklahoma and northwest Arkansas Tuesday morning. Once they move
out, hotter and more humid weather moves in through Thursday with
only low thunderstorm chances across far northeast Oklahoma and
far northwest Arkansas. Afternoon heat index values from 105 to
110 degrees will be common Wednesday and Thursday.

Unsettled weather will return late this week through the weekend
as a weak frontal boundary approaches from the north and stalls
somewhere in our vicinity. This will result in daily thunderstorm
chances, along with somewhat cooler temperatures.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Jul 11, 3:08 AM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tulsa OK
308 AM CDT Tue Jul 11 2023

OKZ065-066-110900-
Okmulgee OK-Okfuskee OK-
308 AM CDT Tue Jul 11 2023

...A strong thunderstorm will impact portions of south central
Okmulgee and eastern Okfuskee Counties through 400 AM CDT...

At 308 AM CDT, Doppler radar indicated a strong thunderstorm near
Castle, moving southeast at 30 mph.

HAZARD...Wind gusts up to 50 mph and nickel 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...
Okemah...                         Weleetka...
Bearden...                        Castle...
Clearview...                      Pharoah...
Bryant...                         Mason...

This includes Interstate 40 in Oklahoma between mile markers 214 and
233.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3558 9636 3538 9597 3537 9598 3529 9598
      3529 9627 3541 9644 3546 9644 3546 9646
TIME...MOT...LOC 0808Z 305DEG 26KT 3547 9635

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...50 MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 3:18 AM CDTSevere Thunderstorm WarningTSAMcIntosh, Okfuskee42 min
Jul 11, 3:38 AM CDTSevere Thunderstorm WarningTSAPittsburg37 min
Jul 11, 3:54 AM CDTAreal Flood AdvisoryTSAOkfuskee3 hr
Jul 11, 6:15 AM CDTSpecial Weather StatementTSAChoctaw, Pushmataha30 min
Jul 11, 7:26 AM CDTAreal Flood AdvisoryTSAChoctaw, Pushmataha3 hr
Jul 11, 1:57 PM CDTExcessive Heat WarningTSACraig, Creek, Haskell, Latimer, McIntosh, Mayes and 11 more30 hr
Jul 11, 1:57 PM CDTHeat AdvisoryTSAAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 9 more30 hr

Nearby

Special Weather Statements in Oklahoma, 2023Every special weather statement 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.