Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 22, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Apr 9, 2021, 3:18 PM CDT for Craig County, Ottawa County, Oklahoma. It was in force for 42 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 9, 2021, 3:18 PM CDT (20:18 UTC)
- Expired
- Apr 9, 2021, 4:00 PM CDT
- In force
- 42 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Craig County, OK, Ottawa County, OK
The radar
The Tulsa radar (KINX), 88 km from the middle of the area, began a volume at 20:18 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, 8.3 hours before the alert went out and 104 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
- 107 J/kg
- Mixed-layer CIN
- -149 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 415 m²/s²
- 0-3 km storm-relative helicity
- 429 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 2.8
The text
As transmitted.
714
WUUS54 KTSA 092018
SVRTSA
OKC035-115-092100-
/O.NEW.KTSA.SV.W.0022.210409T2018Z-210409T2100Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
318 PM CDT Fri Apr 9 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Northeastern Craig County in northeastern Oklahoma...
Western Ottawa County in northeastern Oklahoma...
* Until 400 PM CDT.
* At 318 PM CDT, a severe thunderstorm was located near Afton, moving
north at 25 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...
Miami... Commerce...
Afton... Narcissa...
Cardin...
This includes Interstate 44 between mile markers 291 and 302.
LAT...LON 3668 9491 3668 9504 3697 9510 3698 9484
TIME...MOT...LOC 2018Z 179DEG 22KT 3673 9497
HAIL...1.00IN
WIND...60MPH
$$3 follow-up statements
473
WWUS54 KTSA 092027
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
327 PM CDT Fri Apr 9 2021
OKC035-115-092100-
/O.CON.KTSA.SV.W.0022.000000T0000Z-210409T2100Z/
Craig OK-Ottawa OK-
327 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR NORTHEASTERN CRAIG AND WESTERN OTTAWA COUNTIES...
At 327 PM CDT, a severe thunderstorm was located 3 miles southwest of
Narcissa, moving north at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Miami... Commerce...
Narcissa... Cardin...
LAT...LON 3673 9492 3672 9503 3697 9510 3698 9484
TIME...MOT...LOC 2027Z 179DEG 19KT 3677 9497
HAIL...1.00IN
WIND...60MPH
$$732
WWUS54 KTSA 092037
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
337 PM CDT Fri Apr 9 2021
OKC035-115-092100-
/O.CON.KTSA.SV.W.0022.000000T0000Z-210409T2100Z/
Craig OK-Ottawa OK-
337 PM CDT Fri Apr 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR NORTHEASTERN CRAIG AND NORTHWESTERN OTTAWA COUNTIES...
At 337 PM CDT, a severe thunderstorm was located 3 miles northwest of
Narcissa, moving north at 25 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...
Miami... Commerce...
Narcissa... Cardin...
LAT...LON 3679 9490 3680 9505 3697 9510 3698 9484
TIME...MOT...LOC 2037Z 179DEG 22KT 3684 9497
HAIL...1.00IN
WIND...60MPH
$$366
WWUS54 KTSA 092054
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
354 PM CDT Fri Apr 9 2021
OKC035-115-092104-
/O.EXP.KTSA.SV.W.0022.000000T0000Z-210409T2100Z/
Craig OK-Ottawa OK-
354 PM CDT Fri Apr 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CRAIG AND
NORTHWESTERN OTTAWA COUNTIES WILL EXPIRE AT 400 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire. However small hail,
gusty winds and heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
northeastern Oklahoma.
LAT...LON 3679 9490 3680 9505 3697 9510 3698 9484
TIME...MOT...LOC 2054Z 179DEG 22KT 3694 9497
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 3:08 PM CDT | Special Weather Statement | TSA | Ottawa | 37 min |
| Apr 9, 3:51 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers, Tulsa, Washington | 39 min |
| Apr 9, 3:53 PM CDT | Special Weather Statement | TSA | Ottawa | 22 min |
| Apr 9, 4:01 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 44 min |
| Apr 9, 4:18 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Rogers | 42 min |
| Apr 9, 4:19 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata, Rogers | 41 min |
| Apr 9, 4:32 PM CDT | Severe Thunderstorm Warning | TSA | Pawnee | 43 min |
| Apr 9, 4:45 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 45 min |
| Apr 9, 4:56 PM CDT | Severe Thunderstorm Warning | TSA | Craig, Nowata | 14 min |
| Apr 9, 5:07 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 38 min |
| Apr 9, 5:13 PM CDT | Special Weather Statement | TSA | Osage | 32 min |
| Apr 9, 5:22 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 53 min |
| Apr 9, 5:33 PM CDT | Wind Advisory | TSA | Craig, Creek, Mayes, Nowata, Okfuskee, Okmulgee and 5 more | 5 hr |
| Apr 9, 5:46 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 44 min |
| Apr 9, 5:47 PM CDT | Severe Thunderstorm Warning | TSA | Nowata, Rogers | 43 min |
| Apr 9, 5:47 PM CDT | Severe Thunderstorm Warning | TSA | Osage | 43 min |
| Apr 9, 5:59 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 46 min |
| Apr 9, 6:09 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee, Washington | 51 min |
| Apr 9, 6:26 PM CDT | Special Weather Statement | TSA | Nowata | 34 min |
| Apr 9, 6:29 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Tulsa, Washington | 46 min |
| Apr 9, 6:47 PM CDT | Special Weather Statement | TSA | Craig | 28 min |
| Apr 9, 6:55 PM CDT | Special Weather Statement | TSA | Creek | 35 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.