Alert archive / Texas / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 663, NWS Norman, OK

July 15, 2016Clay County, Texas

NWS Norman, OK issued this severe thunderstorm warning at Jul 15, 2016, 6:44 AM CDT for Clay County, Texas. It was in force for 46 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: Jul 15, 2016, 6:44 AM CDT (11:44 UTC)
Expired: Jul 15, 2016, 7:30 AM CDT
In force: 46 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Clay County, TX

The radar

The Altus AFB radar (KFDR), 95 km from the middle of the area, began a volume at 11:44 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

Fort Worth, TX (KFWD), launched 00:00Z, 11.7 hours before the alert went out and 136 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: 1267 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 2105 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -38 m²/s²
0-3 km storm-relative helicity: 19 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 Jul 15, 6:33 AM CDT, 11 minutes earlier.

Area forecast discussion, Jul 15, 6:33 AM CDT, 11 minutes before

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Hazardous weather outlook, Jul 15, 5:02 AM CDT, 1 hour 42 minutes before

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In the hours before

Local storm report, Jul 15, 3:05 AM CDT, 3 hours 39 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE NORMAN OK
305 AM CDT FRI JUL 15 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0255 AM     TSTM WND GST     3 NNW SHAWNEE           35.38N 96.94W
07/15/2016  M58.00 MPH       POTTAWATOMIE       OK   MESONET

&&

BTHOREN

Special weather statement, Jul 15, 3:21 AM CDT, 3 hours 23 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
321 AM CDT FRI JUL 15 2016

TXZ088-089-150900-
ARCHER TX-BAYLOR TX-
321 AM CDT FRI JUL 15 2016

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN ARCHER AND
NORTHEASTERN BAYLOR COUNTIES UNTIL 400 AM CDT...

AT 321 AM CDT...A STRONG THUNDERSTORM WAS LOCATED 6 MILES EAST OF
LAKE KEMP...MOVING SOUTHEAST AT 25 MPH.

HAZARDS INCLUDE...
HAIL UP TO THE SIZE OF NICKELS...
WIND GUSTS TO 50 MPH...

LOCATIONS IMPACTED INCLUDE...
LAKE DIVERSION...LAKE KICKAPOO...WESTOVER...NORTHEASTERN LAKE KEMP...
DUNDEE AND MABELLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE WEATHER IS NOT EXPECTED AND NO WARNINGS ARE ANTICIPATED AT
THIS TIME.

&&

LAT...LON 3348 9901 3376 9921 3383 9916 3383 9908
      3381 9896 3372 9862
TIME...MOT...LOC 0814Z 311DEG 22KT 3378 9908

MBS

Special weather statement, Jul 15, 3:33 AM CDT, 3 hours 11 minutes before

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Special weather statement, Jul 15, 3:46 AM CDT, 2 hours 58 minutes before

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Special weather statement, Jul 15, 4:19 AM CDT, 2 hours 25 minutes before

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Special weather statement, Jul 15, 6:02 AM CDT, 42 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
Jul 14, 9:22 PM CDT	Special Weather Statement	OUN	Harmon	23 min
Jul 14, 9:31 PM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	59 min
Jul 14, 10:00 PM CDT	Special Weather Statement	OUN	Logan	60 min
Jul 14, 10:13 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Jackson, Kiowa, Tillman	47 min
Jul 14, 10:26 PM CDT	Special Weather Statement	OUN	Blaine, Dewey	64 min
Jul 14, 10:32 PM CDT	Areal Flood Advisory	OUN	Harmon, Jackson	3 hr
Jul 14, 10:43 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey	62 min
Jul 14, 10:52 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Jackson, Tillman	53 min
Jul 14, 11:06 PM CDT	Severe Thunderstorm Warning	OUN	Garfield, Logan, Noble, Payne	39 min
Jul 14, 11:07 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Dewey, Roger Mills, Washita	53 min
Jul 14, 11:09 PM CDT	Special Weather Statement	OUN	Roger Mills	66 min
Jul 14, 11:11 PM CDT	Areal Flood Advisory	OUN	Blaine, Canadian, Custer, Dewey, Kingfisher	3 hr
Jul 14, 11:22 PM CDT	Flash Flood Warning	OUN	Blaine, Canadian, Kingfisher	3 hr
Jul 14, 11:23 PM CDT	Severe Thunderstorm Warning	OUN	Kingfisher, Logan	52 min
Jul 14, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Roger Mills	33 min
Jul 14, 11:31 PM CDT	Areal Flood Advisory	OUN	Garfield, Kingfisher, Logan, Noble	3 hr
Jul 14, 11:39 PM CDT	Special Weather Statement	OUN	Oklahoma	66 min
Jul 14, 11:41 PM CDT	Special Weather Statement	OUN	Kingfisher, Payne	64 min
Jul 14, 11:47 PM CDT	Special Weather Statement	OUN	Cotton, Tillman	58 min
Jul 14, 11:49 PM CDT	Special Weather Statement	OUN	Canadian, Custer, Washita	56 min
Jul 14, 11:54 PM CDT	Areal Flood Advisory	OUN	Beckham, Blaine, Caddo, Custer, Dewey, Roger Mills and 1 more	3 hr
Jul 14, 11:57 PM CDT	Flash Flood Warning	OUN	Custer, Washita	3 hr
Jul 14, 11:59 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Roger Mills, Washita	48 min
Jul 15, 12:16 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Logan, Noble, Payne	29 min
Jul 15, 12:21 AM CDT	Special Weather Statement	OUN	Greer, Kiowa	39 min
Jul 15, 12:29 AM CDT	Special Weather Statement	OUN	Caddo, Canadian, Grady	61 min
Jul 15, 12:37 AM CDT	Areal Flood Advisory	OUN	Blaine, Caddo, Canadian, Grady	113 min
Jul 15, 12:49 AM CDT	Special Weather Statement	OUN	Payne	56 min
Jul 15, 12:51 AM CDT	Special Weather Statement	OUN	Cleveland, Logan, Oklahoma	54 min
Jul 15, 12:59 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Grady, McClain	46 min
Jul 15, 1:05 AM CDT	Areal Flood Advisory	OUN	Canadian, Kingfisher, Oklahoma	3 hr
Jul 15, 1:08 AM CDT	Severe Thunderstorm Warning	OUN	Payne	52 min
Jul 15, 1:17 AM CDT	Flash Flood Warning	OUN	Blaine, Caddo, Canadian, Grady	3 hr
Jul 15, 1:36 AM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, McClain, Oklahoma	54 min
Jul 15, 1:41 AM CDT	Areal Flood Advisory	OUN	Cleveland, Grady, McClain, Oklahoma	3 hr
Jul 15, 1:45 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Canadian, Comanche, Garvin, Grady, McClain	45 min
Jul 15, 1:55 AM CDT	Flash Flood Warning	OUN	Cleveland, McClain, Oklahoma	3 hr
Jul 15, 2:09 AM CDT	Areal Flood Advisory	OUN	Cleveland, Garvin, Grady, McClain	3 hr
Jul 15, 2:18 AM CDT	Special Weather Statement	OUN	Oklahoma, Pottawatomie	57 min
Jul 15, 2:21 AM CDT	Special Weather Statement	OUN	Garvin, McClain, Pottawatomie	54 min
Jul 15, 2:31 AM CDT	Areal Flood Advisory	OUN	Lincoln, Pottawatomie	3 hr
Jul 15, 2:46 AM CDT	Special Weather Statement	OUN	Garvin	59 min
Jul 15, 2:49 AM CDT	Special Weather Statement	OUN	Hughes, Murray, Pontotoc, Seminole	56 min
Jul 15, 3:13 AM CDT	Areal Flood Advisory	OUN	Carter, Cleveland, Garvin, McClain, Murray, Pontotoc and 2 more	3 hr
Jul 15, 3:33 AM CDT	Special Weather Statement	OUN	Carter, Johnston, Marshall, Murray	57 min
Jul 15, 3:46 AM CDT	Special Weather Statement	OUN	Coal, Hughes, Pontotoc	59 min
Jul 15, 3:53 AM CDT	Areal Flood Advisory	OUN	Carter, Coal, Johnston, Murray, Pontotoc	3 hr
Jul 15, 4:19 AM CDT	Special Weather Statement	OUN	Atoka, Bryan, Coal, Johnston, Marshall	56 min
Jul 14, 8:54 PM CDT	Special Weather Statement	OUN	Foard	36 min
Jul 14, 9:02 PM CDT	Special Weather Statement	OUN	Foard, Knox	28 min
Jul 15, 12:31 AM CDT	Special Weather Statement	OUN	Archer, Baylor, Clay, Wichita	59 min
Jul 15, 1:02 AM CDT	Areal Flood Advisory	OUN	Archer, Baylor, Clay	3 hr
Jul 15, 3:21 AM CDT	Special Weather Statement	OUN	Archer	39 min
Jul 15, 6:02 AM CDT	Special Weather Statement	OUN	Clay	43 min
Jul 15, 4:26 PM CDT	Special Weather Statement	OUN	Baylor	34 min

Nearby

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