Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 178, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Oct 24, 2021, 6:56 PM CDT for Adair County, Cherokee County, Sequoyah County, Oklahoma. It was in force for 49 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 24, 2021, 6:56 PM CDT (23:56 UTC)
- Expired
- Oct 24, 2021, 7:45 PM CDT
- In force
- 49 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Adair County, OK, Cherokee County, OK, Sequoyah County, OK
The radar
The Western Arkansas radar (KSRX), 58 km from the middle of the area, began a volume at 23:55 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 24, 3:47 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Springfield, MO (KSGF), launched 12:00Z, 11.9 hours before the alert went out and 162 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.
- Mixed-layer CAPE
- 860 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 737 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 225 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
538
WUUS54 KTSA 242356
SVRTSA
OKC001-021-135-250045-
/O.NEW.KTSA.SV.W.0178.211024T2356Z-211025T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
656 PM CDT Sun Oct 24 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Northeastern Sequoyah County in east central Oklahoma...
Southern Adair County in northeastern Oklahoma...
Southeastern Cherokee County in east central Oklahoma...
* Until 745 PM CDT.
* At 656 PM CDT, a severe thunderstorm was located 4 miles east of
Cookson, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations in or near the path include...
Stilwell... Bunch...
Cookson... Short...
Cherokee Landing State Park...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for northeastern
and east central Oklahoma.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3565 9503 3583 9491 3579 9450 3548 9445
TIME...MOT...LOC 2356Z 288DEG 25KT 3570 9484
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$2 follow-up statements
065
WWUS54 KTSA 250019
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
719 PM CDT Sun Oct 24 2021
OKC001-021-135-250045-
/O.CON.KTSA.SV.W.0178.000000T0000Z-211025T0045Z/
Sequoyah OK-Adair OK-Cherokee OK-
719 PM CDT Sun Oct 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHEASTERN SEQUOYAH...SOUTHERN ADAIR AND SOUTHEASTERN CHEROKEE
COUNTIES...
At 718 PM CDT, a severe thunderstorm was located 6 miles east of
Bunch, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Bunch... Short...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until 1100 PM CDT for northeastern
and east central Oklahoma.
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3562 9492 3574 9484 3579 9450 3548 9445
TIME...MOT...LOC 0018Z 288DEG 25KT 3565 9466
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$587
WWUS54 KTSA 250042
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
742 PM CDT Sun Oct 24 2021
OKC001-021-135-250051-
/O.EXP.KTSA.SV.W.0178.000000T0000Z-211025T0045Z/
Sequoyah OK-Adair OK-Cherokee OK-
742 PM CDT Sun Oct 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SEQUOYAH...
SOUTHERN ADAIR AND SOUTHEASTERN CHEROKEE COUNTIES WILL EXPIRE AT 745
PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until 1100 PM CDT for northeastern
and east central Oklahoma.
LAT...LON 3562 9492 3574 9484 3579 9450 3548 9445
TIME...MOT...LOC 0041Z 288DEG 25KT 3560 9449
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 24, 5:54 AM CDT | Special Weather Statement | TSA | Pawnee | 36 min |
| Oct 24, 6:20 AM CDT | Special Weather Statement | TSA | Osage | 40 min |
| Oct 24, 7:01 AM CDT | Special Weather Statement | TSA | Osage | 44 min |
| Oct 24, 6:03 PM CDT | Special Weather Statement | TSA | Cherokee | 27 min |
| Oct 24, 6:16 PM CDT | Severe Thunderstorm Warning | TSA | Adair, Cherokee, Muskogee | 44 min |
Nearby
Severe Thunderstorm Warnings in Oklahoma, 2021Every severe thunderstorm warning 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.