Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 119, NWS Tulsa, OK

May 9, 20234 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 2023, 6:39 PM CDT for 4 counties in Oklahoma. It was in force for 51 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: May 9, 2023, 6:39 PM CDT (23:39 UTC)
Expired: May 9, 2023, 7:30 PM CDT
In force: 51 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Craig County, OK, Nowata County, OK, Osage County, OK, Washington County, OK

The radar

The Tulsa radar (KINX), 64 km from the middle of the area, began a volume at 23:42 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 12:00Z, 11.7 hours before the alert went out and 177 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: 1599 J/kg
Mixed-layer CIN: -70 J/kg
Mixed-layer LCL: 990 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 7 m²/s²
0-3 km storm-relative helicity: 4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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 May 9, 2:30 PM CDT, 4 hours 9 minutes earlier.

Area forecast discussion, May 9, 2:30 PM CDT, 4 hours 9 minutes before

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Hazardous weather outlook, May 9, 5:06 PM CDT, 1 hour 33 minutes before

Hazardous Weather Outlook
National Weather Service Tulsa OK
506 PM CDT Tue May 9 2023

ARZ001-002-010-011-019-020-029-OKZ049-053>076-101000-
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-
506 PM CDT Tue May 9 2023

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

.DAY ONE...Tonight.

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

HEAVY RAIN.
	RISK...Limited.
	AREA...Far Northeast Oklahoma.
	ONSET...Ongoing.

DISCUSSION...
Strong to severe thunderstorms across southeast Kansas are
expected to continue to move southeast into northeast Oklahoma
and far northwest Arkansas into the evening hours. A threat for
damaging winds and possibly large hail will exist primarily for
areas along and north of Highway 412, with the expectation that
storms will decrease in intensity farther south.

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

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
WEDNESDAY...Thunderstorm Potential...Heavy Rain Potential.
THURSDAY and FRIDAY...Thunderstorm Potential...High Wind Potential.
SATURDAY...Thunderstorm Potential...Heavy Rain Potential.
SUNDAY and MONDAY...Thunderstorm Potential.

EXTENDED DISCUSSION...
Daily thunderstorm chances are expected to continue through the
weekend as a moist and unstable airmass lingers over the region.
The best chance of severe weather looks to occur on Thursday
evening in areas northwest of Interstate 44, as storms that
develop to the west along the dryline move into the area. Over the
weekend, a cold front will slowly move through the area,
providing a focus for more widespread showers and thunderstorms
with locally heavy rainfall possible.

weather.gov/tulsa contains additional information.

In the hours before

Special weather statement, May 9, 5:22 PM CDT, 1 hour 17 minutes before

Special Weather Statement
National Weather Service Tulsa OK
522 PM CDT Tue May 9 2023

OKZ054-055-092315-
Osage OK-Washington OK-
522 PM CDT Tue May 9 2023

...Strong thunderstorms will impact portions of northern Osage and
northwestern Washington Counties through 615 PM CDT...

At 521 PM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 3 miles east of Fall River to 4 miles north of
Dexter to 3 miles southwest of Oxford. Movement was southeast at 40
mph. Wind gusts will precede thunderstorms as a strong outflow
boundary and wind shift moves into the area.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects.

Locations in or near the path include...
Shidler...                        Burbank...
Elgin...                          Grainola...
Foraker...                        Bigheart...
Pearsonia...                      Hulah...
Sunset Lake...                    Southern Kaw Lake...
Webb City...                      Wah Sha She State Park...
Apperson...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3700 9579 3668 9636 3667 9705 3669 9706
      3670 9703 3669 9693 3675 9689 3674 9683
      3677 9682 3678 9675 3700 9675
TIME...MOT...LOC 2221Z 334DEG 34KT 3762 9597 3725 9669 3724 9720

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

Special weather statement, May 9, 6:12 PM CDT, 27 minutes before

Special Weather Statement
National Weather Service Tulsa OK
612 PM CDT Tue May 9 2023

OKZ054>056-059-100000-
Osage OK-Pawnee OK-Nowata OK-Washington OK-
612 PM CDT Tue May 9 2023

...Strong thunderstorms will impact portions of Osage, northern
Washington, northern Nowata and northwestern Pawnee Counties through
700 PM CDT...

At 609 PM CDT, Doppler radar indicated an outflow of strong winds
along a line extending from near Peru to 4 miles north of Pearsonia
to 5 miles west of Newkirk. Movement was southeast at 35 mph. The
outflow winds were ahead of a line of thunderstorms which will
continue to move south into northeast Oklahoma through 7 pm.
Additional strong gusts may accompany the storms.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down small tree limbs and blow
         around unsecured objects.

Locations in or near the path include...
Bartlesville...                   Pawhuska...
Dewey...                          Fairfax...
South Coffeyville...              Copan...
Shidler...                        Wynona...
Ralston...                        Burbank...
Wann...                           Elgin...
Grainola...                       Foraker...
Bigheart...                       Bartlesville Municipal Airport...
Osage Hills State Park...         Pearsonia...
Hulah...                          Sunset Lake...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3700 9541 3652 9629 3644 9703 3651 9703
      3655 9690 3658 9689 3660 9692 3659 9705
      3668 9706 3670 9703 3668 9694 3675 9689
      3674 9683 3677 9682 3678 9675 3700 9675
TIME...MOT...LOC 2309Z 336DEG 29KT 3706 9611 3686 9647 3686 9715

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 9, 12:22 AM CDT	Special Weather Statement	TSA	Craig	23 min
May 9, 12:51 AM CDT	Special Weather Statement	TSA	Craig	24 min
May 9, 5:22 PM CDT	Special Weather Statement	TSA	Osage	53 min
May 9, 6:12 PM CDT	Special Weather Statement	TSA	Osage	48 min
May 8, 10:05 PM CDT	Special Weather Statement	TSA	Carroll	25 min
May 8, 10:24 PM CDT	Special Weather Statement	TSA	Carroll	36 min
May 8, 10:32 PM CDT	Special Weather Statement	TSA	Benton	28 min
May 8, 10:45 PM CDT	Special Weather Statement	TSA	Carroll	30 min
May 8, 10:50 PM CDT	Severe Thunderstorm Warning	TSA	Carroll	25 min
May 8, 11:13 PM CDT	Areal Flood Advisory	TSA	Carroll	2 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2023 Every 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.