Alert archive / Oklahoma / Special Weather Statements in 2023

Special Weather Statement, NWS Tulsa, OK

April 20, 2023Pushmataha County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Apr 20, 2023, 12:39 PM CDT for Pushmataha County, Oklahoma. It was in force for 36 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
Apr 20, 2023, 12:39 PM CDT (17:39 UTC)
Expired
Apr 20, 2023, 1:15 PM CDT
In force
36 min
Issued by
NWS Tulsa, OK
Hail
0.88 in
Wind
40

County Pushmataha County, OK

The radar

The Western Arkansas radar (KSRX), 144 km from the middle of the area, began a volume at 17:44 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 12:00Z, 5.7 hours before the alert went out and 173 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 12:00Z on 2023-04-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2159 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 12:00Z on 2023-04-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 302 square meters per square second.19395878Sfc1 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
2159 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
302 m²/s²
0-3 km storm-relative helicity
325 m²/s²
Significant tornado parameter
3.0
Supercell composite
14.8

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 Apr 20, 12:12 PM CDT, 27 minutes earlier.

Area forecast discussion, Apr 20, 12:12 PM CDT, 27 minutes before
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Hazardous weather outlook, Apr 20, 12:37 PM CDT, 2 minutes before
Hazardous Weather Outlook
National Weather Service Tulsa OK
1237 PM CDT Thu Apr 20 2023

ARZ001-002-010-011-019-020-029-OKZ049-053>076-211015-
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-
1237 PM CDT Thu Apr 20 2023

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

.DAY ONE...This Afternoon and Tonight.

TORNADO.
	RISK...Limited.
	AREA...Southeast Oklahoma and West Central Arkansas.
	ONSET...Ongoing.

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

HEAVY RAIN.
	RISK...Limited.
	AREA...Southeast Oklahoma and West Central Arkansas.
	ONSET...Ongoing.

SIGNIFICANT WINDS.
	RISK...Limited.
	AREA...Eastern Oklahoma and Northwest Arkansas.
	ONSET...Ongoing.

FIRE WEATHER DANGER.
	RISK...Limited.
	AREA...Northeast Oklahoma, west of Highway 75.
	ONSET...Ongoing.

DISCUSSION...

A cold front will continue moving through the region today, with
scattered strong to severe storms likely along the front across
southeast Oklahoma and northwest Arkansas. The stronger storms will
be capable of producing large hail and damaging winds, including a
tornado or two. The severe weather threat will end by late afternoon
or early evening as the front sweeps southeast of the region.

Gusty northerly winds and a much drier air-mass will at least lead
to a limited fire weather threat this afternoon across northeast
Oklahoma, mainly west of Highway 75 where min RH values will drop
into the 20-30 percent range.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
Activation of the Regional Spotter Network Likely.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
FRIDAY...Very High Fire Weather Potential.
MONDAY...Thunderstorm Potential.
TUESDAY AND WEDNESDAY...Thunderstorm Potential...Heavy Rain Potential.

EXTENDED DISCUSSION...
Cooler weather will follow the front tomorrow and through much of
the rest of the forecast period. The lighter winds and cooler
temps should help limit the fire weather threat a little, though
much drier air behind the front tomorrow will cause afternoon RH
values to drop into the 20-30 percent range west of Highway 75 in
northeast Oklahoma. Rain chances return on Sunday for southeast
Oklahoma and for the rest of the forecast area much of the
beginning of next week. Heavy rain/flooding could become a
concern as multiple rounds of showers and storms appear possible.
Severe weather chances appear to be limited at this time.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, Apr 20, 6:39 AM CDT, 6 hours before
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Special weather statement, Apr 20, 7:34 AM CDT, 5 hours 5 minutes before
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Special weather statement, Apr 20, 12:39 PM CDT, 0 minutes before
Special Weather Statement
National Weather Service Tulsa OK
1239 PM CDT Thu Apr 20 2023

OKZ049-073-075-201815-
Pittsburg OK-Latimer OK-Pushmataha OK-
1239 PM CDT Thu Apr 20 2023

...A strong thunderstorm will impact portions of northwestern
Pushmataha, southwestern Latimer and southeastern Pittsburg Counties
through 115 PM CDT...

At 1239 PM CDT, Doppler radar indicated a strong thunderstorm 5 miles
northeast of Daisy, moving northeast at 30 mph.

HAZARD...Wind gusts up to 40 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.

This storm will remain over mainly rural areas of northwestern
Pushmataha, southwestern Latimer and southeastern Pittsburg Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3445 9578 3451 9578 3451 9567 3459 9567
      3459 9578 3467 9578 3482 9544 3456 9542
TIME...MOT...LOC 1739Z 242DEG 26KT 3459 9568

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 7:54 PM CDTSevere Thunderstorm WarningTSAOsage39 min
Apr 19, 8:31 PM CDTSpecial Weather StatementTSAOsage14 min
Apr 19, 8:36 PM CDTSpecial Weather StatementTSAPawnee24 min
Apr 19, 9:00 PM CDTSpecial Weather StatementTSAPawnee45 min
Apr 19, 10:27 PM CDTSevere Thunderstorm Warning Considerable damage threatTSACreek, Okfuskee63 min
Apr 19, 10:40 PM CDTSpecial Weather StatementTSAOsage35 min
Apr 19, 10:53 PM CDTSpecial Weather StatementTSACraig37 min
Apr 19, 11:00 PM CDTHigh Wind WarningTSACraig, Nowata, Ottawa, Washington44 min
Apr 19, 11:00 PM CDTWind AdvisoryTSACraig, Nowata, Ottawa, Washington8 hr
Apr 19, 11:18 PM CDTSevere Thunderstorm Warning Considerable damage threatTSAOkfuskee, Okmulgee42 min
Apr 19, 11:51 PM CDTSevere Thunderstorm Warning Considerable damage threatTSAOkfuskee, Okmulgee39 min
Apr 20, 12:20 AM CDTSevere Thunderstorm WarningTSAMuskogee, Okmulgee26 min
Apr 20, 12:24 AM CDTSpecial Weather StatementTSARogers36 min
Apr 20, 12:37 AM CDTSpecial Weather StatementTSATulsa23 min
Apr 20, 12:44 AM CDTSpecial Weather StatementTSAWagoner31 min
Apr 20, 1:09 AM CDTSpecial Weather StatementTSAMayes, Wagoner36 min
Apr 20, 6:39 AM CDTSpecial Weather StatementTSACreek51 min
Apr 20, 7:34 AM CDTSpecial Weather StatementTSACreek26 min
Apr 20, 1:09 PM CDTSpecial Weather StatementTSAPushmataha36 min
Apr 20, 1:26 PM CDTSevere Thunderstorm WarningTSALatimer, LeFlore, Pushmataha49 min
Apr 20, 1:56 PM CDTTornado WarningTSAPushmataha49 min
Apr 20, 2:12 PM CDTSpecial Weather StatementTSAChoctaw33 min
Apr 20, 2:19 PM CDTSpecial Weather StatementTSASequoyah26 min
Apr 20, 2:25 PM CDTSevere Thunderstorm WarningTSAHaskell, Muskogee, Sequoyah50 min
Apr 20, 2:44 PM CDTSpecial Weather StatementTSAPushmataha46 min
Apr 20, 2:47 PM CDTSevere Thunderstorm WarningTSALeFlore, Pushmataha32 min
Apr 20, 3:26 PM CDTSpecial Weather StatementTSALeFlore49 min
Apr 20, 3:43 PM CDTSpecial Weather StatementTSASequoyah47 min
Apr 20, 5:16 PM CDTSpecial Weather StatementTSAChoctaw29 min
Apr 20, 5:40 PM CDTSpecial Weather StatementTSAPushmataha35 min
Apr 20, 1:31 PM CDTSpecial Weather StatementTSABenton29 min
Apr 20, 1:43 PM CDTSpecial Weather StatementTSAMadison32 min
Apr 20, 1:56 PM CDTSevere Thunderstorm WarningTSACarroll49 min
Apr 20, 2:12 PM CDTSevere Thunderstorm WarningTSABenton, Carroll33 min
Apr 20, 3:06 PM CDTSpecial Weather StatementTSAFranklin24 min
Apr 20, 3:16 PM CDTSpecial Weather StatementTSACrawford29 min
Apr 20, 3:18 PM CDTSevere Thunderstorm WarningTSACarroll27 min
Apr 20, 3:29 PM CDTSpecial Weather StatementTSAFranklin31 min
Apr 20, 3:34 PM CDTSevere Thunderstorm WarningTSACrawford, Franklin, Madison, Washington41 min
Apr 20, 3:52 PM CDTSpecial Weather StatementTSACarroll23 min
Apr 20, 4:10 PM CDTSevere Thunderstorm WarningTSACarroll24 min
Apr 20, 4:20 PM CDTSpecial Weather StatementTSACrawford, Madison25 min

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.