Alert archive / Oklahoma / Special Weather Statements in 2021

Special Weather Statement, NWS Tulsa, OK

October 13, 2021McIntosh County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Oct 13, 2021, 8:52 AM CDT for McIntosh County, Oklahoma. It was in force for 23 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: Oct 13, 2021, 8:52 AM CDT (13:52 UTC)
Expired: Oct 13, 2021, 9:15 AM CDT
In force: 23 min
Issued by: NWS Tulsa, OK
Hail: 0.00 in
Wind: 50

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 108 km from the middle of the area, began a volume at 13:51 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, 1.9 hours before the alert went out and 247 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: 722 J/kg
Mixed-layer CIN: -164 J/kg
Mixed-layer LCL: 646 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 440 m²/s²
0-3 km storm-relative helicity: 590 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted.

735 
WWUS84 KTSA 131352
SPSTSA

Special Weather Statement
National Weather Service Tulsa OK
852 AM CDT Wed Oct 13 2021
 
OKZ070-071-073-074-131415-
Haskell OK-Pittsburg OK-Muskogee OK-McIntosh OK-
852 AM CDT Wed Oct 13 2021

...Strong thunderstorms will impact portions of west central Haskell,
central McIntosh, northeastern Pittsburg and south central Muskogee
Counties through 915 AM CDT...

At 852 AM CDT, Doppler radar indicated strong thunderstorms along a
line extending from 2 miles south of Stidham to near Canadian to 5
miles southwest of Crowder. Movement was east at 50 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

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

Locations in or near the path include...
Eufaula...                        Quinton...
Crowder...                        Canadian...
Stidham...                        Arrowhead State Park...
Enterprise...                     Blocker...
Vivian...                         Featherston...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

&&

LAT...LON 3514 9575 3536 9578 3545 9529 3527 9526
      3507 9539 3501 9586
TIME...MOT...LOC 1352Z 248DEG 43KT 3533 9570 3517 9567 3507 9574 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

$$

Lacy

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 13, 4:48 AM CDT	Special Weather Statement	TSA	Osage	42 min
Oct 13, 5:27 AM CDT	Special Weather Statement	TSA	Osage, Pawnee	48 min
Oct 13, 6:03 AM CDT	Special Weather Statement	TSA	Creek, Osage, Washington	42 min
Oct 13, 6:39 AM CDT	Special Weather Statement	TSA	Creek, Nowata, Tulsa, Washington	66 min
Oct 13, 6:48 AM CDT	Special Weather Statement	TSA	Okfuskee	57 min
Oct 13, 7:29 AM CDT	Special Weather Statement	TSA	Craig	46 min
Oct 13, 7:34 AM CDT	Special Weather Statement	TSA	Okmulgee, Rogers, Tulsa	41 min
Oct 13, 8:08 AM CDT	Special Weather Statement	TSA	Mayes, Rogers	52 min
Oct 13, 8:15 AM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Pittsburg	45 min
Oct 13, 8:18 AM CDT	Special Weather Statement	TSA	Craig, Ottawa	42 min
Oct 13, 8:42 AM CDT	Special Weather Statement	TSA	Muskogee, Wagoner	48 min
Oct 13, 8:48 AM CDT	Special Weather Statement	TSA	Mayes	42 min
Oct 13, 9:10 AM CDT	Special Weather Statement	TSA	Haskell	50 min
Oct 13, 9:17 AM CDT	Special Weather Statement	TSA	Cherokee	28 min
Oct 13, 9:21 AM CDT	Special Weather Statement	TSA	Cherokee, Delaware	24 min
Oct 13, 9:39 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	13 min
Oct 13, 9:46 AM CDT	Special Weather Statement	TSA	Adair	44 min
Oct 13, 9:49 AM CDT	Special Weather Statement	TSA	Haskell, Sequoyah	41 min
Oct 13, 10:22 AM CDT	Special Weather Statement	TSA	Sequoyah	38 min
Oct 13, 3:39 PM CDT	Special Weather Statement	TSA	Choctaw, Pushmataha	66 min
Oct 13, 4:19 PM CDT	Areal Flood Advisory	TSA	Haskell, Latimer, LeFlore, Pushmataha	3 hr
Oct 13, 4:22 PM CDT	Severe Thunderstorm Warning	TSA	Choctaw, Pushmataha	32 min
Oct 13, 4:51 PM CDT	Special Weather Statement	TSA	Latimer, LeFlore	39 min
Oct 13, 4:57 PM CDT	Special Weather Statement	TSA	Pushmataha	63 min
Oct 13, 5:45 PM CDT	Areal Flood Advisory	TSA	Haskell, LeFlore, Sequoyah	3 hr
Oct 13, 5:24 PM CDT	Special Weather Statement	TSA	Sebastian	51 min
Oct 13, 6:01 PM CDT	Tornado Warning	TSA	Franklin, Sebastian	44 min

Nearby

Special Weather Statements in Oklahoma, 2021 Every special weather statement in 2021

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.