Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 770, NWS Norman, OK

August 16, 2019Harper County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 16, 2019, 5:47 PM CDT for Harper County, Oklahoma. It was in force for 73 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 16, 2019, 5:47 PM CDT (22:47 UTC)
Expired
Aug 16, 2019, 7:00 PM CDT
In force
73 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

County Harper County, OK

The radar

The Dodge City radar (KDDC), 111 km from the middle of the area, began a volume at 22:47 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 forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Norman, OK wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 2:48 PM CDT, 2 hours 59 minutes earlier.

Area forecast discussion, Aug 16, 2:48 PM CDT, 2 hours 59 minutes before
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Hazardous weather outlook, Aug 16, 11:47 AM CDT, 6 hours before
Hazardous Weather Outlook
National Weather Service Norman OK
1147 AM CDT Fri Aug 16 2019

OKZ004>048-050>052-TXZ083>090-171115-
Harper-Woods-Alfalfa-Grant-Kay-Ellis-Woodward-Major-Garfield-
Noble-Roger Mills-Dewey-Custer-Blaine-Kingfisher-Logan-Payne-
Beckham-Washita-Caddo-Canadian-Oklahoma-Lincoln-Grady-McClain-
Cleveland-Pottawatomie-Seminole-Hughes-Harmon-Greer-Kiowa-Jackson-
Tillman-Comanche-Stephens-Garvin-Murray-Pontotoc-Coal-Cotton-
Jefferson-Carter-Johnston-Atoka-Love-Marshall-Bryan-Hardeman-
Foard-Wilbarger-Wichita-Knox-Baylor-Archer-Clay-
1147 AM CDT Fri Aug 16 2019

This hazardous weather outlook is for portions of northern...
western...central...and southern Oklahoma...and western north
Texas.

.DAY ONE...Through tonight...

.Thunderstorms...
There is a risk of a few strong to severe thunderstorms today,
mainly along and northwest of a line from Hollis to Watonga to
Stillwater. The strongest storms will be capable of producing
wind gusts to 60 mph, heavy downpours, and hail up to the size of
quarters. The most likely time for severe weather will be between
5 pm and 11 pm.

Isolated to widely scattered may develop late this afternoon
across southern Kansas and northern Oklahoma. Other storms will
be possible farther south across the eastern Texas panhandle and
western Oklahoma. Modest instability and favorable wind fields
will result in the possibility of a few strong to severe storms.

.Heat...
Heat indices around 105 are expected this afternoon across much
of the area.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday...

.Thunderstorms...
There is Marginal Risk of severe thunderstorms Saturday afternoon
and evening across much of western and northern Oklahoma and
portions of western north Texas. Large hail and strong winds will
be the main hazards.

.Heat...
Afternoon heat indices between 100 and 105 degrees will continue
across much of the area through the middle of next week.

Get graphics and more details at weather.gov/norman...and
follow our weather forecast office on Twitter and Facebook.

In the hours before

Special weather statement, Aug 16, 5:11 PM CDT, 36 minutes before
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Special weather statement, Aug 16, 5:36 PM CDT, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
536 PM CDT Fri Aug 16 2019

OKZ004-162330-
Harper OK-
536 PM CDT Fri Aug 16 2019

...SIGNIFICANT WEATHER ADVISORY FOR western Harper County Until 630
PM CDT...

AT 534 PM CDT, a strong thunderstorm was located 4 miles southeast of
Rosston, moving east at 15 MPH.

HAZARDS INCLUDE...
Wind gusts over 50 MPH...
Heavy rain can lead to reduced visibility...
Frequent cloud to ground lightning...

Locations impacted include...
Laverne, Buffalo and Rosston.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the weather situation closely and be alert for threatening
weather conditions.

&&

LAT...LON 3695 9962 3665 9960 3670 10001 3687 10000
TIME...MOT...LOC 2234Z 266DEG 12KT 3678 9986

03

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 16, 9:01 AM CDTSpecial Weather StatementOUNNoble29 min
Aug 16, 9:31 AM CDTSpecial Weather StatementOUNNoble29 min
Aug 16, 1:57 PM CDTHeat AdvisoryOUNAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 24 more6 hr
Aug 16, 5:36 PM CDTSpecial Weather StatementOUNHarper54 min
Aug 16, 6:31 PM CDTAreal Flood AdvisoryOUNHarper3 hr
Aug 16, 6:56 PM CDTSevere Thunderstorm WarningOUNHarper34 min
Aug 16, 5:11 PM CDTSpecial Weather StatementOUNFoard64 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019Every severe thunderstorm warning in 2019

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.