Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 854, NWS Norman, OK

October 6, 2016Greer County, Harmon County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Oct 6, 2016, 3:49 PM CDT for Greer County, Harmon 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: Oct 6, 2016, 3:49 PM CDT (20:49 UTC)
Expired: Oct 6, 2016, 4:19 PM CDT
In force: 30 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Greer County, OK, Harmon County, OK

The radar

The Altus AFB radar (KFDR), 85 km from the middle of the area, began a volume at 20:48 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Oct 6, 2:31 PM CDT	Severe Thunderstorm Watch	SPC	9 hr

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 Oct 6, 2:48 PM CDT, 1 hour 1 minute earlier.

Area forecast discussion, Oct 6, 2:48 PM CDT, 1 hour 1 minute before

Area Forecast Discussion
National Weather Service Norman OK
248 PM CDT THU OCT 6 2016

.DISCUSSION...
A few storms have formed this afternoon near the Kansas and Oklahoma
border along and north of an outflow boundary. Farther west, a
few weak radar returns in western Oklahoma are associated
with increasing cloud cover & along an 9-85h moisture gradient.
Several HRRR runs develop storms across southwest/west central
Oklahoma this afternoon with increasing coverage as storms move
eastward through the early evening. Additional storms are expected
to form along a cold front in northwest/north central Oklahoma by
early evening.

35-40 kts of deep layer shear and moderate to high instability should
result in several severe storms, with the best chance during the
late afternoon and early evening. The best tornado
potential appears to be across far north central Oklahoma/southern
Kansas along and near a retreating outflow boundary (back winds &
lower LCL).

Storms will continue to form along a cold front during the evening
and overnight with a risk of hail and damaging winds. Showers
and storms may linger for several hours behind the surface front
as elevated instability will be around 500 J/KG.

Showers and storms will clear southern Oklahoma and north Texas by
mid to late Friday morning.

Showers and thunderstorm chances will increase Sunday into Monday
as a trough lifts across the central Plains.

&&

.PRELIMINARY POINT TEMPS/POPS...
Oklahoma City OK  50  65  45  73 /  80   0   0   0
Hobart OK         51  65  44  72 /  70  10   0   0
Wichita Falls TX  55  67  48  75 /  90  30   0   0
Gage OK           44  66  40  75 /  10   0   0   0
Ponca City OK     48  66  40  74 /  80   0   0   0
Durant OK         60  70  53  79 /  90  30   0   0

&&

.OUN Watches/Warnings/Advisories...
OK...Flood Watch until midnight CDT tonight for OKZ007-008-012-013-
     020.

TX...None.
&&

Hazardous weather outlook, Oct 6, 11:46 AM CDT, 4 hours 3 minutes before

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In the hours before

Local storm report, Oct 6, 10:17 AM CDT, 5 hours 32 minutes before

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Special weather statement, Oct 6, 2:25 PM CDT, 1 hour 24 minutes before

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Special weather statement, Oct 6, 3:27 PM CDT, 22 minutes before

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Special weather statement, Oct 6, 3:36 PM CDT, 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 5, 7:17 PM CDT	Special Weather Statement	OUN	Tillman	28 min
Oct 5, 10:06 PM CDT	Special Weather Statement	OUN	Kingfisher	24 min
Oct 5, 10:31 PM CDT	Special Weather Statement	OUN	Kingfisher	29 min
Oct 5, 10:35 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble	40 min
Oct 5, 10:58 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Kingfisher, Logan, Noble	47 min
Oct 5, 11:03 PM CDT	Special Weather Statement	OUN	Blaine	27 min
Oct 5, 11:14 PM CDT	Special Weather Statement	OUN	Noble	31 min
Oct 5, 11:20 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Blaine, Garfield, Kingfisher, Major	40 min
Oct 5, 11:33 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant	42 min
Oct 5, 11:41 PM CDT	Special Weather Statement	OUN	Noble	34 min
Oct 5, 11:53 PM CDT	Special Weather Statement	OUN	Payne	37 min
Oct 5, 11:55 PM CDT	Special Weather Statement	OUN	Alfalfa	35 min
Oct 6, 12:01 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	44 min
Oct 6, 12:36 AM CDT	Special Weather Statement	OUN	Kay	24 min
Oct 6, 12:42 AM CDT	Special Weather Statement	OUN	Grant	33 min
Oct 6, 12:44 AM CDT	Special Weather Statement	OUN	Alfalfa	31 min
Oct 6, 1:07 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	38 min
Oct 6, 1:33 AM CDT	Special Weather Statement	OUN	Custer	27 min
Oct 6, 1:41 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	33 min
Oct 6, 2:17 AM CDT	Special Weather Statement	OUN	Kay	43 min
Oct 6, 2:26 AM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	34 min
Oct 6, 2:53 AM CDT	Areal Flood Advisory	OUN	Garfield, Grant, Kay, Noble	3 hr
Oct 6, 3:07 AM CDT	Special Weather Statement	OUN	Garfield, Grant, Kay	3 hr
Oct 6, 3:26 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay, Noble	49 min
Oct 6, 3:31 AM CDT	Flash Flood Warning	OUN	Garfield, Grant, Kay, Noble	6 hr
Oct 6, 4:27 AM CDT	Flash Flood Warning	OUN	Kay	3 hr
Oct 6, 5:06 AM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	39 min
Oct 6, 6:50 AM CDT	Special Weather Statement	OUN	Logan, Payne	25 min
Oct 6, 7:25 AM CDT	Flash Flood Warning	OUN	Kay, Noble	2 hr
Oct 6, 7:34 AM CDT	Flash Flood Warning	OUN	Logan, Noble, Payne	3 hr
Oct 6, 8:22 AM CDT	River Flood Warning	OUN	Grant, Kay, Noble	41 hr
Oct 6, 9:44 AM CDT	Areal Flood Warning	OUN	Garfield, Grant, Kay, Noble	3 hr
Oct 6, 10:05 AM CDT	Flood Watch	OUN	Garfield, Grant, Kay, Noble, Payne	14 hr
Oct 6, 2:25 PM CDT	Special Weather Statement	OUN	Kay	50 min
Oct 6, 3:27 PM CDT	Special Weather Statement	OUN	Grant	33 min
Oct 6, 3:32 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	28 min
Oct 6, 3:36 PM CDT	Special Weather Statement	OUN	Harmon	24 min
Oct 6, 4:12 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	48 min
Oct 6, 4:36 PM CDT	Special Weather Statement	OUN	Grant	9 min
Oct 6, 4:40 PM CDT	Special Weather Statement	OUN	Beckham	20 min
Oct 6, 4:47 PM CDT	Special Weather Statement	OUN	Grant	13 min
Oct 6, 4:50 PM CDT	Special Weather Statement	OUN	Custer	25 min
Oct 6, 4:54 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Washita	51 min
Oct 6, 4:57 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	48 min
Oct 6, 5:00 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	45 min
Oct 6, 5:01 PM CDT	Special Weather Statement	OUN	Garfield	29 min
Oct 6, 5:21 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	54 min
Oct 6, 5:24 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Major, Woodward	51 min
Oct 6, 5:36 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Roger Mills	39 min
Oct 6, 5:44 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	46 min
Oct 6, 5:52 PM CDT	Special Weather Statement	OUN	Woods	53 min
Oct 6, 6:09 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant, Major, Woods, Woodward	66 min
Oct 6, 6:13 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	47 min
Oct 6, 6:15 PM CDT	Severe Thunderstorm Warning	OUN	Dewey	60 min
Oct 6, 6:20 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Roger Mills, Washita	40 min
Oct 6, 6:30 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	19 min
Oct 6, 6:36 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	39 min
Oct 6, 6:41 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Roger Mills	34 min
Oct 6, 6:57 PM CDT	Severe Thunderstorm Warning	OUN	Cotton, Tillman	48 min
Oct 5, 7:10 PM CDT	Special Weather Statement	OUN	Knox	35 min
Oct 5, 7:26 PM CDT	Special Weather Statement	OUN	Baylor	49 min
Oct 5, 7:50 PM CDT	Special Weather Statement	OUN	Baylor	25 min
Oct 6, 3:24 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman	51 min
Oct 6, 4:47 PM CDT	Flash Flood Warning	OUN	Hardeman	3 hr
Oct 6, 6:29 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	46 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2016 Every severe thunderstorm warning in 2016

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.