Severe Thunderstorm Warning 448, NWS Norman, OK

Issued

Aug 13, 2021, 5:10 PM CDT (22:10 UTC)

Expired

Aug 13, 2021, 6:00 PM CDT

In force

50 min

Issued by

NWS Norman, OK

Area

Storm-based polygon

Hail

0.88 in

Wind

60.0 mph

Counties Greer County, OK, Kiowa County, OK

The Altus AFB radar (KFDR), 88 km from the middle of the area, began a volume at 22:12 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.

471 
WUUS54 KOUN 132210
SVROUN
OKC055-075-132300-
/O.NEW.KOUN.SV.W.0448.210813T2210Z-210813T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
510 PM CDT Fri Aug 13 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Northwestern Kiowa County in southwestern Oklahoma...
  Greer County in southwestern Oklahoma...

* Until 600 PM CDT.

* At 510 PM CDT, a severe thunderstorm was located 4 miles northwest
  of Granite, moving northeast at 10 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Mangum, Granite, Lone Wolf, Willow, Brinkman and Altus-Lugert Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3503 9967 3512 9962 3512 9944 3511 9944
      3512 9941 3511 9924 3481 9925 3481 9967
TIME...MOT...LOC 2210Z 241DEG 7KT 3499 9945 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

03

433 
WWUS54 KOUN 132234
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
534 PM CDT Fri Aug 13 2021

OKC055-075-132300-
/O.CON.KOUN.SV.W.0448.000000T0000Z-210813T2300Z/
Kiowa OK-Greer OK-
534 PM CDT Fri Aug 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHWESTERN KIOWA AND GREER COUNTIES...

At 534 PM CDT, a severe thunderstorm was located near Granite, moving
northeast at 10 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Mangum, Granite, Lone Wolf, Willow, Brinkman and Altus-Lugert Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3503 9967 3512 9962 3512 9944 3511 9944
      3512 9941 3511 9924 3481 9925 3481 9967
TIME...MOT...LOC 2234Z 241DEG 7KT 3501 9940 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

03

075 
WWUS54 KOUN 132250
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
550 PM CDT Fri Aug 13 2021

OKC055-075-132300-
/O.EXP.KOUN.SV.W.0448.000000T0000Z-210813T2300Z/
Kiowa OK-Greer OK-
550 PM CDT Fri Aug 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN KIOWA AND GREER
COUNTIES WILL EXPIRE AT 600 PM CDT...
                 
The storm which prompted the warning has weakened below severe
limits, therefore the warning will be allowed to expire.  However
gusty winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3503 9967 3512 9962 3512 9944 3511 9944
      3512 9941 3511 9924 3481 9925 3481 9967
TIME...MOT...LOC 2250Z 241DEG 7KT 3502 9938 

$$

03

Severe Thunderstorm Warnings in Oklahoma, 2021Every severe thunderstorm warning in 2021

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.