Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 57, NWS Norman, OK
NWS Norman, OK issued this severe thunderstorm warning at Mar 24, 2021, 9:55 PM CDT for 4 counties in Oklahoma. It was in force for 35 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
- Mar 24, 2021, 9:55 PM CDT (02:55 UTC)
- Expired
- Mar 24, 2021, 10:30 PM CDT
- In force
- 35 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atoka County, OK, Coal County, OK, Johnston County, OK, Pontotoc County, OK
The radar
The Norman radar (KTLX), 122 km from the middle of the area, began a volume at 02:56 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
Norman, OK (KOUN), launched 00:00Z, 2.9 hours before the alert went out and 119 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1550 m above ground
- 0-6 km bulk shear
- 62 kt
- 0-1 km storm-relative helicity
- 77 m²/s²
- 0-3 km storm-relative helicity
- 353 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
664
WUUS54 KOUN 250255
SVROUN
OKC005-029-069-123-250330-
/O.NEW.KOUN.SV.W.0057.210325T0255Z-210325T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
955 PM CDT Wed Mar 24 2021
The National Weather Service in Norman has issued a
* Severe Thunderstorm Warning for...
Northeastern Johnston County in southeastern Oklahoma...
Southwestern Coal County in southeastern Oklahoma...
Southeastern Pontotoc County in east central Oklahoma...
West central Atoka County in southeastern Oklahoma...
* Until 1030 PM CDT.
* At 955 PM CDT, a severe thunderstorm was located near Reagan,
moving northeast at 40 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 impacted include...
Tishomingo, Wapanucka, Lehigh, Tupelo, Bromide, Centrahoma,
Pontotoc, Clarita, Olney, Reagan, Connerville, Phillips and Jesse.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3424 9670 3438 9681 3471 9642 3444 9617
TIME...MOT...LOC 0255Z 227DEG 35KT 3435 9667
HAIL...1.00IN
WIND...60MPH
$$
Ware1 follow-up statement
345
WWUS54 KOUN 250312
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
1012 PM CDT Wed Mar 24 2021
OKC005-069-123-250321-
/O.CAN.KOUN.SV.W.0057.000000T0000Z-210325T0330Z/
Johnston OK-Pontotoc OK-Atoka OK-
1012 PM CDT Wed Mar 24 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN JOHNSTON...
SOUTHEASTERN PONTOTOC AND WEST CENTRAL ATOKA COUNTIES IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3442 9623 3442 9649 3444 9652 3460 9651
3468 9645 3468 9641 3469 9640 3444 9617
TIME...MOT...LOC 0311Z 227DEG 35KT 3446 9653
$$
OKC029-250330-
/O.CON.KOUN.SV.W.0057.000000T0000Z-210325T0330Z/
Coal OK-
1012 PM CDT Wed Mar 24 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CDT
FOR SOUTHWESTERN COAL COUNTY...
At 1011 PM CDT, a severe thunderstorm was located near Bromide,
moving northeast at 40 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 impacted include...
Lehigh, Tupelo, Bromide, Centrahoma, Clarita, Olney and Phillips.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3442 9623 3442 9649 3444 9652 3460 9651
3468 9645 3468 9641 3469 9640 3444 9617
TIME...MOT...LOC 0311Z 227DEG 35KT 3446 9653
HAIL...1.00IN
WIND...60MPH
$$
WareThe office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 9:34 PM CDT | Special Weather Statement | OUN | Johnston | 26 min |
| Mar 24, 9:36 PM CDT | Special Weather Statement | OUN | Garvin | 24 min |
| Mar 24, 10:01 PM CDT | Special Weather Statement | OUN | Pontotoc | 29 min |
| Mar 24, 10:05 PM CDT | Special Weather Statement | OUN | Bryan | 25 min |
| Mar 24, 10:21 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Coal, Hughes | 39 min |
| Mar 24, 11:11 PM CDT | Special Weather Statement | OUN | Bryan | 34 min |
| Mar 24, 11:39 PM CDT | Special Weather Statement | OUN | Bryan | 21 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.