Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 112, NWS Tulsa, OK
NWS Tulsa, OK issued this severe thunderstorm warning at Jun 11, 2021, 11:08 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 52 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Jun 11, 2021, 11:08 PM CDT (04:08 UTC)
- Expired
- Jun 12, 2021, 12:00 AM CDT
- In force
- 52 min
- Issued by
- NWS Tulsa, OK
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Osage County, OK, Pawnee County, OK
The radar
The Vance AFB radar (KVNX), 112 km from the middle of the area, began a volume at 04:11 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jun 11, 11:46 PM CDT | TSTM WND GST 59 | 6 Sw Burbank, OK |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 11, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 00:00Z, 4.1 hours before the alert went out and 160 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
- 3394 J/kg
- Mixed-layer CIN
- -216 J/kg
- Mixed-layer LCL
- 1175 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 225 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
763
WUUS54 KTSA 120408
SVRTSA
OKC113-117-120500-
/O.NEW.KTSA.SV.W.0112.210612T0408Z-210612T0500Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
1108 PM CDT Fri Jun 11 2021
The National Weather Service in Tulsa has issued a
* Severe Thunderstorm Warning for...
Northwestern Osage County in northeastern Oklahoma...
Northwestern Pawnee County in northeastern Oklahoma...
* Until midnight CDT.
* At 1108 PM CDT, a severe thunderstorm was located 3 miles north of
Kaw Lake, moving south at 45 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations in or near the path include...
Pawnee... Fairfax...
Ralston... Burbank...
Skedee... Webb City...
Apperson...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3651 9703 3657 9689 3660 9692 3658 9702
3669 9700 3668 9694 3675 9689 3674 9683
3677 9682 3678 9675 3691 9675 3692 9668
3626 9665 3625 9692 3633 9693 3634 9703
TIME...MOT...LOC 0408Z 352DEG 40KT 3683 9684
HAIL...<.75IN
WIND...60MPH
$$1 follow-up statement
187
WWUS54 KTSA 120429
SVSTSA
Severe Weather Statement
National Weather Service Tulsa OK
1129 PM CDT Fri Jun 11 2021
OKC113-117-120500-
/O.CON.KTSA.SV.W.0112.000000T0000Z-210612T0500Z/
Osage OK-Pawnee OK-
1129 PM CDT Fri Jun 11 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT
FOR WEST CENTRAL OSAGE AND NORTHWESTERN PAWNEE COUNTIES...
At 1129 PM CDT, a severe thunderstorm was located near Burbank,
moving south at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations in or near the path include...
Pawnee... Fairfax...
Shidler... Ralston...
Burbank... Skedee...
Apperson...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3677 9682 3677 9681 3678 9675 3679 9675
3680 9669 3678 9667 3629 9665 3628 9688
3657 9689 3658 9689 3674 9690 3675 9689
3674 9683
TIME...MOT...LOC 0429Z 344DEG 29KT 3671 9677
HAIL...1.00IN
WIND...60MPH
$$The office that day
Everything else NWS Tulsa, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 8:14 PM CDT | Special Weather Statement | TSA | Ottawa | 61 min |
| Jun 11, 10:54 PM CDT | Special Weather Statement | TSA | Osage | 51 min |
| Jun 11, 11:50 PM CDT | Severe Thunderstorm Warning | TSA | Osage, Pawnee | 40 min |
| Jun 12, 1:57 AM CDT | Special Weather Statement | TSA | Okfuskee | 48 min |
| Jun 12, 2:17 AM CDT | Areal Flood Advisory | TSA | Creek, Okfuskee | 3 hr |
| Jun 12, 2:30 AM CDT | Special Weather Statement | TSA | Okfuskee, Okmulgee | 45 min |
| Jun 12, 3:06 AM CDT | Special Weather Statement | TSA | McIntosh, Okmulgee | 24 min |
| Jun 12, 3:12 AM CDT | Areal Flood Advisory | TSA | Okfuskee, Okmulgee | 3 hr |
| Jun 12, 3:31 AM CDT | Special Weather Statement | TSA | McIntosh, Pittsburg | 29 min |
| Jun 12, 3:57 AM CDT | Special Weather Statement | TSA | Tulsa | 33 min |
| Jun 12, 4:02 AM CDT | Special Weather Statement | TSA | Latimer, Pittsburg | 28 min |
| Jun 12, 4:59 AM CDT | Special Weather Statement | TSA | Pushmataha | 46 min |
| Jun 12, 1:06 PM CDT | Heat Advisory | TSA | Adair, Cherokee, Craig, Creek, Delaware, Haskell and 12 more | 7 hr |
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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.