Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 81, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at May 9, 2021, 1:10 AM CDT for Craig County, Nowata County, Rogers County, Oklahoma. It was in force for 24 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
- May 9, 2021, 1:10 AM CDT (06:10 UTC)
- Expired
- May 9, 2021, 1:34 AM CDT
- In force
- 24 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Craig County, OK, Nowata County, OK, Rogers County, OK
The radar
The Tulsa radar (KINX), 49 km from the middle of the area, began a volume at 06:08 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 00:00Z, 6.2 hours before the alert went out and 146 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
- 2 J/kg
- Mixed-layer CIN
- -429 J/kg
- Mixed-layer LCL
- 2095 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
085
WUUS54 KTSA 090610
SVRTSA
OKC035-105-131-090700-
/O.NEW.KTSA.SV.W.0081.210509T0610Z-210509T0700Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
110 AM CDT Sun May 9 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Southwestern Craig County in northeastern Oklahoma...
Northeastern Rogers County in northeastern Oklahoma...
Southeastern Nowata County in northeastern Oklahoma...
* Until 200 AM CDT.
* At 110 AM CDT, a severe thunderstorm was located over New Alluwe,
moving east at 35 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...
Vinita... Chelsea...
Big Cabin... New Alluwe...
White Oak...
This includes Interstate 44 between mile markers 275 and 284.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3650 9555 3666 9559 3678 9518 3655 9509
TIME...MOT...LOC 0610Z 258DEG 29KT 3659 9549
HAIL...1.00IN
WIND...60MPH
$$2 follow-up statements
354
WWUS54 KTSA 090621
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
121 AM CDT Sun May 9 2021
OKC105-090631-
/O.CAN.KTSA.SV.W.0081.000000T0000Z-210509T0700Z/
Nowata OK-
121 AM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NOWATA COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore the warning has been cancelled.
LAT...LON 3678 9518 3655 9509 3652 9541 3667 9543
3670 9543
TIME...MOT...LOC 0621Z 259DEG 30KT 3660 9536
$$
OKC035-131-090700-
/O.CON.KTSA.SV.W.0081.000000T0000Z-210509T0700Z/
Craig OK-Rogers OK-
121 AM CDT Sun May 9 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 AM CDT
FOR SOUTHWESTERN CRAIG AND NORTHEASTERN ROGERS COUNTIES...
At 121 AM CDT, a severe thunderstorm was located 5 miles west of
White Oak, moving east at 35 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...
Vinita... Big Cabin...
White Oak...
This includes Interstate 44 between mile markers 276 and 284.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3678 9518 3655 9509 3652 9541 3667 9543
3670 9543
TIME...MOT...LOC 0621Z 259DEG 30KT 3660 9536
HAIL...1.00IN
WIND...60MPH
$$060
WWUS54 KTSA 090634
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
134 AM CDT Sun May 9 2021
OKC035-131-090644-
/O.CAN.KTSA.SV.W.0081.000000T0000Z-210509T0700Z/
Craig OK-Rogers OK-
134 AM CDT Sun May 9 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CRAIG AND
NORTHEASTERN ROGERS COUNTIES IS CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore the warning has been cancelled. However small hail, gusty
winds and heavy rain are still possible with this thunderstorm.
LAT...LON 3678 9518 3655 9509 3652 9541 3667 9543
3670 9543
TIME...MOT...LOC 0632Z 258DEG 29KT 3662 9523
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 8, 11:50 PM CDT | Special Weather Statement | TSA | Rogers | 25 min |
| May 9, 12:16 AM CDT | Special Weather Statement | TSA | Rogers | 29 min |
| May 9, 1:00 AM CDT | Special Weather Statement | TSA | Nowata | 30 min |
| May 9, 1:12 AM CDT | Special Weather Statement | TSA | Mayes | 33 min |
| May 9, 1:44 AM CDT | Special Weather Statement | TSA | Ottawa | 46 min |
| May 9, 1:47 AM CDT | Special Weather Statement | TSA | Delaware | 28 min |
| May 9, 2:08 AM CDT | Special Weather Statement | TSA | Delaware | 37 min |
| May 9, 2:21 AM CDT | Special Weather Statement | TSA | Sequoyah | 24 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.