Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 763, NWS Norman, OK

August 9, 2017Ellis County, Harper County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Aug 9, 2017, 6:30 PM CDT for Ellis County, Harper County, Oklahoma. It was in force for 30 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 9, 2017, 6:30 PM CDT (23:30 UTC)
Expired
Aug 9, 2017, 7:00 PM CDT
In force
30 min
Issued by
NWS Norman, OK
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Ellis County, OK, Harper County, OK

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 9, 3:47 PM CDT, 2 hours 43 minutes earlier.

Area forecast discussion, Aug 9, 3:47 PM CDT, 2 hours 43 minutes before
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Hazardous weather outlook, Aug 9, 11:30 AM CDT, 7 hours before
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<body>
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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
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        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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In the hours before

Special weather statement, Aug 9, 3:40 PM CDT, 2 hours 50 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
340 PM CDT WED AUG 9 2017

OKZ009-010-014-015-092115-
Woodward OK-Roger Mills OK-Dewey OK-Ellis OK-
340 PM CDT WED AUG 9 2017

...SIGNIFICANT WEATHER ADVISORY FOR southwestern Woodward...
northeastern Roger Mills...northwestern Dewey and southeastern Ellis
Counties Until 415 PM CDT...

AT 336 PM CDT, a strong thunderstorm was located near Harmon, moving
east at 25 MPH.

HAZARDS INCLUDE...
Wind gusts to 40 MPH...
Minor flooding in areas of poor drainage...

Locations impacted include...
Vici, Camargo and Harmon.

LAT...LON 3604 9970 3620 9965 3618 9923 3592 9931
TIME...MOT...LOC 2036Z 282DEG 20KT 3611 9957

WR
Special weather statement, Aug 9, 6:07 PM CDT, 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
607 PM CDT WED AUG 9 2017

OKZ004-092330-
Harper OK-
607 PM CDT WED AUG 9 2017

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

AT 558 PM CDT, a strong thunderstorm was located 5 miles east of
Rosston, moving southeast at 35 MPH.

HAZARDS INCLUDE...
Wind gusts to 40 MPH...
Minor flooding in areas of poor drainage...

LAT...LON 3676 9945 3663 9980 3678 9998 3693 9987
TIME...MOT...LOC 2258Z 301DEG 28KT 3681 9984

WR

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 9, 3:40 PM CDTSpecial Weather StatementOUNEllis35 min
Aug 9, 3:49 PM CDTSevere Thunderstorm WarningOUNDewey, Ellis, Roger Mills26 min
Aug 9, 4:23 PM CDTSevere Thunderstorm WarningOUNDewey, Ellis, Roger Mills
Aug 9, 4:24 PM CDTSevere Thunderstorm WarningOUNCuster, Dewey, Roger Mills51 min
Aug 9, 6:07 PM CDTSpecial Weather StatementOUNHarper23 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017Every severe thunderstorm warning in 2017

Sources

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