Alert archive / Oklahoma / Tornado Warnings in 2021
Tornado Warning 25, NWS Norman, OK
NWS Norman, OK issued this tornado warning at Oct 10, 2021, 6:53 PM CDT for Caddo County, Grady County, Oklahoma. It was in force for 52 min. 5 reports 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
- Oct 10, 2021, 6:53 PM CDT (23:53 UTC)
- Expired
- Oct 10, 2021, 7:45 PM CDT
- In force
- 52 min
- Issued by
- NWS Norman, OK
- Area
- Storm-based polygon
- Tornado
- Observed
- Hail
- 1.75 in
Counties Caddo County, OK, Grady County, OK
The radar
The Norman radar (KTLX), 64 km from the middle of the area, began a volume at 23:57 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 |
|---|---|---|---|
| Oct 10, 7:00 PM CDT | TSTM WND GST 82 | 3 Nw Chickasha, OK | |
| Oct 10, 7:02 PM CDT | TORNADO | 2 S Verden, OK | |
| Oct 10, 7:13 PM CDT | TSTM WND DMG | 4 Sse Chickasha, OK | TREE DAMAGE. |
| Oct 10, 7:15 PM CDT | TSTM WND GST 58 | 2 Sse Chickasha, OK | |
| Oct 10, 7:35 PM CDT | TSTM WND GST 60 | 3 Nw Chickasha, 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 |
|---|---|---|---|
| Oct 10, 3:22 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Norman, OK (KOUN), launched 12:00Z, 11.9 hours before the alert went out and 49 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
- 8 J/kg
- Mixed-layer CIN
- -777 J/kg
- Mixed-layer LCL
- 1314 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 273 m²/s²
- 0-3 km storm-relative helicity
- 178 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
823
WFUS54 KOUN 102353
TOROUN
OKC015-051-110045-
/O.NEW.KOUN.TO.W.0025.211010T2353Z-211011T0045Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Norman OK
653 PM CDT Sun Oct 10 2021
The National Weather Service in Norman has issued a
* Tornado Warning for...
Central Grady County in central Oklahoma...
Southeastern Caddo County in southwestern Oklahoma...
* Until 745 PM CDT.
* At 645 PM CDT, spotters reported a tornado 4 miles south-southwest
of Anadarko, moving east-northeast at 40 mph.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Chickasha, Blanchard, Anadarko, Verden, Amber, Norge, Middleberg,
Tabler, Ninnekah and Laverty.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room or an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 3523 9767 3495 9767 3496 9827 3505 9829
TIME...MOT...LOC 2352Z 260DEG 34KT 3502 9820
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
..speg.4 follow-up statements
239
WWUS54 KOUN 110005
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
705 PM CDT Sun Oct 10 2021
OKC015-051-110045-
/O.CON.KOUN.TO.W.0025.000000T0000Z-211011T0045Z/
Grady OK-Caddo OK-
705 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
GRADY AND EAST CENTRAL CADDO COUNTIES...
At 704 PM CDT, a confirmed tornado was located near Verden, moving
east-northeast at 35 mph. People near Verden and near and north of
Chickasha should take shelter now.
HAZARD...Damaging tornado and golf ball size hail.
SOURCE...Weather spotters confirmed tornado.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Chickasha, Blanchard, Verden, Amber, Middleberg and Tabler.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
To repeat, a tornado is on the ground. TAKE COVER NOW! Move to a
storm shelter, safe room, or an interior room on the lowest floor of
a sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.
&&
LAT...LON 3523 9767 3500 9767 3500 9818 3507 9822
TIME...MOT...LOC 0004Z 254DEG 32KT 3507 9807
TORNADO...OBSERVED
MAX HAIL SIZE...1.75 IN
$$
..speg.089
WWUS54 KOUN 110016
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
716 PM CDT Sun Oct 10 2021
OKC015-110025-
/O.CAN.KOUN.TO.W.0025.000000T0000Z-211011T0045Z/
Caddo OK-
716 PM CDT Sun Oct 10 2021
...THE TORNADO WARNING FOR EAST CENTRAL CADDO COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved into
Grady County... therefore, the torando warning has been cancelled
for Caddo County.
LAT...LON 3523 9767 3505 9767 3504 9800 3511 9807
TIME...MOT...LOC 0015Z 249DEG 41KT 3512 9796
$$
OKC051-110045-
/O.CON.KOUN.TO.W.0025.000000T0000Z-211011T0045Z/
Grady OK-
716 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR CENTRAL
GRADY COUNTY...
At 715 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles south of Pocasset, moving east at 45 mph.
HAZARD...Tornado and tennis ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Chickasha, Blanchard, Amber and Middleberg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3523 9767 3505 9767 3504 9800 3511 9807
TIME...MOT...LOC 0015Z 249DEG 41KT 3512 9796
TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
$$
..speg.313
WWUS54 KOUN 110030
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
730 PM CDT Sun Oct 10 2021
OKC051-110045-
/O.CON.KOUN.TO.W.0025.000000T0000Z-211011T0045Z/
Grady OK-
730 PM CDT Sun Oct 10 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EAST
CENTRAL GRADY COUNTY...
At 730 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Middleberg, moving east-northeast at 45 mph.
HAZARD...Tornado and tennis ball size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Blanchard, Amber and Middleberg.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a storm shelter, safe room, or an interior
room on the lowest floor of a sturdy building. Avoid windows. If you
are outdoors, in a mobile home, or in a vehicle, move to the closest
substantial shelter and protect yourself from flying debris.
&&
LAT...LON 3523 9767 3509 9767 3509 9786 3517 9788
TIME...MOT...LOC 0030Z 252DEG 39KT 3515 9776
TORNADO...RADAR INDICATED
MAX HAIL SIZE...2.50 IN
$$
..speg.656
WWUS54 KOUN 110044
SVSOUN
Severe Weather Statement
National Weather Service Norman OK
744 PM CDT Sun Oct 10 2021
OKC051-110053-
/O.EXP.KOUN.TO.W.0025.000000T0000Z-211011T0045Z/
Grady OK-
744 PM CDT Sun Oct 10 2021
...THE TORNADO WARNING FOR EAST CENTRAL GRADY COUNTY WILL EXPIRE AT
745 PM CDT...
The storm which prompted the tornado warning has moved out of Grady
County. Therefore, the tornado warning will be allowed to expire for
Grady County.
LAT...LON 3523 9767 3509 9767 3509 9786 3517 9788
TIME...MOT...LOC 0043Z 260DEG 34KT 3517 9761
$$
..speg.The office that day
Everything else NWS Norman, OK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 10, 11:48 AM CDT | Flood Watch | OUN | Cleveland, Lincoln, Logan, Noble, Oklahoma, Payne and 1 more | 11 hr |
| Oct 10, 5:17 PM CDT | Special Weather Statement | OUN | Kiowa | 28 min |
| Oct 10, 5:24 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa | 51 min |
| Oct 10, 5:39 PM CDT | Tornado Warning | OUN | Comanche, Kiowa | 51 min |
| Oct 10, 5:46 PM CDT | Severe Thunderstorm Warning | OUN | Jackson, Kiowa, Tillman | 29 min |
| Oct 10, 6:05 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Comanche, Kiowa, Washita | 55 min |
| Oct 10, 6:14 PM CDT | Tornado Warning | OUN | Caddo, Kiowa | 46 min |
| Oct 10, 6:23 PM CDT | Severe Thunderstorm Warning | OUN | Cotton | 52 min |
| Oct 10, 6:29 PM CDT | Areal Flood Advisory | OUN | Caddo, Comanche, Kiowa, Washita | 3 hr |
| Oct 10, 6:51 PM CDT | Severe Thunderstorm Warning | OUN | Kay | 39 min |
| Oct 10, 6:53 PM CDT | Severe Thunderstorm Warning | OUN | Comanche, Cotton, Jefferson, Stephens, Tillman | 52 min |
| Oct 10, 6:57 PM CDT | Severe Thunderstorm Warning | OUN | Caddo, Canadian, Comanche, Grady | 48 min |
Nearby
Tornado Warnings in Oklahoma, 2021Every tornado warning in 2021Tornadoes 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.