Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 236, NWS Norman, OK

May 10, 2017Alfalfa County, Woods County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 10, 2017, 11:53 AM CDT for Alfalfa County, Woods County, Oklahoma. It was in force for 37 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: May 10, 2017, 11:53 AM CDT (16:53 UTC)
Expired: May 10, 2017, 12:30 PM CDT
In force: 37 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Alfalfa County, OK, Woods County, OK

The radar

The Vance AFB radar (KVNX), 42 km from the middle of the area, began a volume at 16:55 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 nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 4.9 hours before the alert went out and 162 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 125 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 May 10, 9:43 AM CDT, 2 hours 10 minutes earlier.

Area forecast discussion, May 10, 9:43 AM CDT, 2 hours 10 minutes before

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Hazardous weather outlook, May 10, 9:57 AM CDT, 1 hour 56 minutes before

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In the hours before

Special weather statement, May 10, 9:16 AM CDT, 2 hours 37 minutes before

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Special weather statement, May 10, 9:28 AM CDT, 2 hours 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
928 AM CDT WED MAY 10 2017

OKZ006-007-101500-
Alfalfa OK-Grant OK-
928 AM CDT WED MAY 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR Alfalfa and northwestern Grant
Counties Until 1000 AM CDT...

AT 927 AM CDT, strong thunderstorms were along a line extending from
5 miles southeast of Kiowa to 5 miles north of Nash, moving northeast
at 35 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 40 MPH...
Minor flooding in areas of poor drainage...
Frequent cloud to ground lightning...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3688 9774 3657 9833 3700 9854 3700 9773
TIME...MOT...LOC 1427Z 231DEG 31KT 3698 9839 3674 9806

30

Special weather statement, May 10, 10:03 AM CDT, 1 hour 50 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1003 AM CDT WED MAY 10 2017

OKZ007-008-012-013-101530-
Garfield OK-Kay OK-Grant OK-Noble OK-
1003 AM CDT WED MAY 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR eastern Garfield...western Kay...
eastern Grant and northwestern Noble Counties Until 1030 AM CDT...

AT 1001 AM CDT, strong thunderstorms were along a line extending from
near Renfrow to 4 miles northwest of Lamont to 4 miles northwest of
Garber to 3 miles west of Douglas, moving northeast at 50 MPH.

HAZARDS INCLUDE...
Hail up to one-half inch diameter...
Wind gusts to 40 MPH...
Minor flooding in areas of poor drainage...
Frequent cloud to ground lightning...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3687 9714 3628 9726 3617 9786 3695 9778
      3700 9769 3700 9716
TIME...MOT...LOC 1501Z 234DEG 43KT 3693 9768 3673 9762 3647 9765 3626
9774

30

Special weather statement, May 10, 10:04 AM CDT, 1 hour 49 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1004 AM CDT WED MAY 10 2017

OKZ009-014-101530-
Roger Mills OK-Ellis OK-
1004 AM CDT WED MAY 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR central Roger Mills and south
central Ellis Counties Until 1030 AM CDT...

AT 1002 AM CDT, a strong thunderstorm was located 7 miles southwest
of Roll, moving northeast at 45 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 40 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3557 9974 3568 9991 3604 9967 3586 9939
TIME...MOT...LOC 1502Z 217DEG 39KT 3569 9977

30

Special weather statement, May 10, 10:36 AM CDT, 1 hour 17 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1036 AM CDT WED MAY 10 2017

OKZ009-010-014-015-101600-
Woodward OK-Roger Mills OK-Dewey OK-Ellis OK-
1036 AM CDT WED MAY 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR southeastern Woodward...
northeastern Roger Mills...northwestern Dewey and southeastern Ellis
Counties Until 1100 AM CDT...

AT 1033 AM CDT, a strong thunderstorm was located 8 miles northwest
of Leedey, moving northeast at 45 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 40 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3587 9939 3596 9958 3622 9943 3621 9899
TIME...MOT...LOC 1533Z 217DEG 39KT 3597 9944

30

Special weather statement, May 10, 11:13 AM CDT, 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE Norman OK
1113 AM CDT WED MAY 10 2017

OKZ010-011-101645-
Major OK-Woodward OK-
1113 AM CDT WED MAY 10 2017

...SIGNIFICANT WEATHER ADVISORY FOR northwestern Major and
southeastern Woodward Counties Until 1145 AM CDT...

AT 1112 AM CDT, a strong thunderstorm was located 5 miles east of
Mutual, moving northeast at 45 MPH.

HAZARDS INCLUDE...
Hail up to the size of nickels...
Wind gusts to 40 MPH...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3652 9896 3651 9896 3651 9893 3642 9871
      3642 9870 3616 9901 3616 9923 3656 9907
TIME...MOT...LOC 1612Z 217DEG 39KT 3625 9906

30

The office that day

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

Issued	Product	Office	Counties	Lasted
May 10, 6:26 AM CDT	Special Weather Statement	OUN	Beckham, Roger Mills	34 min
May 10, 7:01 AM CDT	Special Weather Statement	OUN	Beckham, Roger Mills	29 min
May 10, 7:30 AM CDT	Special Weather Statement	OUN	Custer, Dewey, Woodward	45 min
May 10, 8:08 AM CDT	Special Weather Statement	OUN	Custer, Dewey, Major, Woods, Woodward	52 min
May 10, 8:40 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	50 min
May 10, 8:48 AM CDT	Special Weather Statement	OUN	Blaine, Major	27 min
May 10, 9:16 AM CDT	Special Weather Statement	OUN	Garfield, Grant, Kingfisher	29 min
May 10, 9:28 AM CDT	Special Weather Statement	OUN	Alfalfa	32 min
May 10, 10:03 AM CDT	Special Weather Statement	OUN	Garfield, Grant	27 min
May 10, 10:04 AM CDT	Special Weather Statement	OUN	Roger Mills	26 min
May 10, 10:36 AM CDT	Special Weather Statement	OUN	Dewey	24 min
May 10, 11:13 AM CDT	Special Weather Statement	OUN	Woodward	32 min
May 10, 1:29 PM CDT	Special Weather Statement	OUN	Marshall	31 min
May 10, 1:57 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Major	48 min
May 10, 2:09 PM CDT	Special Weather Statement	OUN	Johnston	36 min
May 10, 2:24 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	27 min
May 10, 2:34 PM CDT	Special Weather Statement	OUN	Coal	26 min
May 10, 2:45 PM CDT	Special Weather Statement	OUN	Alfalfa	30 min
May 10, 2:54 PM CDT	Special Weather Statement	OUN	Oklahoma	36 min
May 10, 2:58 PM CDT	Special Weather Statement	OUN	Garfield	32 min
May 10, 3:08 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Grant, Kay	37 min
May 10, 3:24 PM CDT	Severe Thunderstorm Warning	OUN	Kay, Noble	37 min
May 10, 3:37 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	23 min
May 10, 3:44 PM CDT	Special Weather Statement	OUN	Hughes	16 min
May 10, 3:54 PM CDT	Special Weather Statement	OUN	Kay	36 min
May 10, 4:01 PM CDT	Tornado Warning	OUN	Jackson	29 min
May 10, 4:17 PM CDT	Special Weather Statement	OUN	Kay	28 min
May 10, 4:28 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	47 min
May 10, 4:59 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Jackson, Kiowa	46 min
May 10, 5:14 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Kiowa, Tillman	46 min
May 10, 5:42 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Jackson, Kiowa	48 min
May 10, 5:44 PM CDT	Areal Flood Advisory	OUN	Jackson	2 hr
May 10, 6:00 PM CDT	Special Weather Statement	OUN	Jackson	30 min
May 10, 6:15 PM CDT	Severe Thunderstorm Warning	OUN	Harmon	45 min
May 10, 6:17 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa	43 min
May 10, 6:20 PM CDT	Severe Thunderstorm Warning	OUN	Jackson	55 min
May 10, 6:24 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon	39 min
May 10, 6:30 PM CDT	Special Weather Statement	OUN	Jackson	30 min
May 10, 6:38 PM CDT	Areal Flood Advisory	OUN	Jackson	2 hr
May 10, 6:41 PM CDT	Areal Flood Advisory	OUN	Jackson, Kiowa	3 hr
May 10, 6:54 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	51 min
May 10, 6:56 PM CDT	Severe Thunderstorm Warning	OUN	Caddo	49 min
May 10, 6:57 PM CDT	Special Weather Statement	OUN	Greer	33 min
May 10, 5:49 PM CDT	Special Weather Statement	OUN	Hardeman	26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.