Alert archive / Texas / Red Flag Warnings in 2013

Red Flag Warning 6, NWS Norman, OK

May 19, 2013Harmon County, Jackson County, Tillman County, Oklahoma; 7 counties in Texas

NWS Norman, OK issued this red flag warning at May 19, 2013, 4:20 AM CDT for Harmon County, Jackson County, Tillman County, Oklahoma; 7 counties in Texas. It took effect at May 19, 2013, 1:00 PM CDT. It was in force for 8 hr. 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 19, 2013, 4:20 AM CDT (09:20 UTC)
In effect from: May 19, 2013, 1:00 PM CDT
Expired: May 19, 2013, 9:00 PM CDT
In force: 8 hr
Issued by: NWS Norman, OK

Counties Harmon County, OK, Jackson County, OK, Tillman County, OK, Archer County, TX, Baylor County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 45 km from the middle of the area, began a volume at 09:25 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

Norman, OK (KOUN), launched 00:00Z, 9.3 hours before the alert went out and 217 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: 3824 J/kg
Mixed-layer CIN: -124 J/kg
Mixed-layer LCL: 1277 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 109 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag 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 red flag warning went out at May 19, 12:32 AM CDT, 3 hours 48 minutes earlier.

Area forecast discussion, May 19, 12:32 AM CDT, 3 hours 48 minutes before

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Hazardous weather outlook, May 18, 9:10 PM CDT, 7 hours 10 minutes before

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In the hours before

Local storm report, May 18, 11:29 PM CDT, 4 hours 51 minutes before

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Special weather statement, May 18, 11:35 PM CDT, 4 hours 45 minutes before

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Local storm report, May 18, 11:56 PM CDT, 4 hours 24 minutes before

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Special weather statement, May 19, 12:07 AM CDT, 4 hours 13 minutes before

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Special weather statement, May 19, 12:33 AM CDT, 3 hours 47 minutes before

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Special weather statement, May 19, 1:11 AM CDT, 3 hours 9 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
May 18, 7:00 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon, Jackson	45 min
May 18, 7:26 PM CDT	Areal Flood Advisory	OUN	Jackson, Kiowa, Washita	3 hr
May 18, 7:29 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Greer, Kiowa, Washita	46 min
May 18, 7:53 PM CDT	Special Weather Statement	OUN	Canadian	37 min
May 18, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods	49 min
May 18, 8:02 PM CDT	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson	43 min
May 18, 8:12 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa, Washita	48 min
May 18, 8:15 PM CDT	Special Weather Statement	OUN	Custer	15 min
May 18, 8:22 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher	38 min
May 18, 8:31 PM CDT	Severe Thunderstorm Warning	OUN	Kiowa	29 min
May 18, 8:39 PM CDT	Special Weather Statement	OUN	Alfalfa, Dewey, Garfield, Grant, Major, Woods and 1 more	51 min
May 18, 8:43 PM CDT	Severe Thunderstorm Warning	OUN	Jackson, Tillman	47 min
May 18, 8:49 PM CDT	High Wind Warning	OUN	Alfalfa, Dewey, Garfield, Grant, Kay, Major and 2 more	3 hr
May 18, 8:56 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Jackson, Kiowa, Tillman	34 min
May 18, 9:02 PM CDT	Flash Flood Warning	OUN	Kiowa	3 hr
May 18, 9:05 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Cleveland, Grady, McClain, Oklahoma	40 min
May 18, 9:31 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady, Jackson, Kiowa, Tillman and 1 more	44 min
May 18, 11:04 PM CDT	Severe Thunderstorm Warning	OUN	Comanche, Cotton, Grady, Stephens	41 min
May 18, 11:08 PM CDT	Special Weather Statement	OUN	Lincoln, Pottawatomie, Seminole	37 min
May 18, 11:15 PM CDT	Severe Thunderstorm Warning	OUN	Hughes, Pottawatomie, Seminole	45 min
May 18, 11:35 PM CDT	Special Weather Statement	OUN	Major	25 min
May 18, 11:43 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major, Woodward	47 min
May 19, 12:07 AM CDT	Special Weather Statement	OUN	Hughes, Seminole	23 min
May 19, 12:29 AM CDT	Severe Thunderstorm Warning	OUN	Dewey, Major, Woodward	46 min
May 19, 12:33 AM CDT	Special Weather Statement	OUN	Blaine	27 min
May 19, 1:11 AM CDT	Special Weather Statement	OUN	Garfield, Major	64 min
May 19, 2:12 AM CDT	Severe Thunderstorm Warning	OUN	Garfield, Noble	33 min
May 19, 2:31 PM CDT	Special Weather Statement	OUN	Woods	29 min
May 19, 2:48 PM CDT	Special Weather Statement	OUN	Canadian	27 min
May 19, 3:00 PM CDT	Special Weather Statement	OUN	Woods	30 min
May 19, 3:17 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	43 min
May 19, 3:19 PM CDT	Special Weather Statement	OUN	Canadian	26 min
May 19, 3:21 PM CDT	Special Weather Statement	OUN	Harper	24 min
May 19, 3:25 PM CDT	Severe Thunderstorm Warning	OUN	Grant	35 min
May 19, 3:31 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Kingfisher, Logan, Oklahoma	44 min
May 19, 3:40 PM CDT	Severe Thunderstorm Warning	OUN	Harper, Woods	50 min
May 19, 3:42 PM CDT	Tornado Warning	OUN	Canadian, Logan, Oklahoma	33 min
May 19, 3:54 PM CDT	Special Weather Statement	OUN	Grady	36 min
May 19, 4:00 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Grant	45 min
May 19, 4:07 PM CDT	Severe Thunderstorm Warning	OUN	Woods, Woodward	53 min
May 19, 4:11 PM CDT	Tornado Warning	OUN	Oklahoma	34 min
May 19, 4:16 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Grady, McClain	44 min
May 19, 4:33 PM CDT	Severe Thunderstorm Warning	OUN	Logan	27 min
May 19, 4:36 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	39 min
May 19, 4:43 PM CDT	Tornado Warning	OUN	Lincoln, Oklahoma	32 min
May 19, 4:50 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	40 min
May 19, 4:51 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	39 min
May 19, 4:57 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Grady, McClain	63 min
May 19, 4:58 PM CDT	Tornado Warning	OUN	Lincoln	32 min
May 19, 5:12 PM CDT	Severe Thunderstorm Warning	OUN	Grant, Kay	48 min
May 19, 5:21 PM CDT	Tornado Warning	OUN	Cleveland, McClain	24 min
May 19, 5:30 PM CDT	Tornado Warning	OUN	Lincoln, Payne	30 min
May 19, 5:40 PM CDT	Tornado Warning	OUN	Cleveland, McClain	35 min
May 19, 6:00 PM CDT	Severe Thunderstorm Warning	OUN	Kay	45 min
May 19, 6:01 PM CDT	Tornado Warning	OUN	Cleveland, Pottawatomie	44 min
May 19, 6:03 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	42 min
May 19, 6:08 PM CDT	Tornado Warning	OUN	Lincoln	37 min
May 19, 6:17 PM CDT	Severe Thunderstorm Warning	OUN	Cleveland, Lincoln, Oklahoma, Pottawatomie	43 min
May 19, 6:29 PM CDT	Tornado Warning	OUN	Pottawatomie	46 min
May 19, 6:42 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Payne	18 min
May 19, 6:45 PM CDT	Severe Thunderstorm Warning	OUN	Lincoln, Pottawatomie	45 min
May 19, 6:59 PM CDT	Tornado Warning	OUN	Lincoln, Pottawatomie	31 min
May 18, 7:51 PM CDT	Special Weather Statement	OUN	Foard, Hardeman	24 min
May 18, 7:56 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Knox	49 min
May 18, 8:01 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	44 min
May 18, 8:45 PM CDT	Severe Thunderstorm Warning	OUN	Baylor	45 min

Nearby

Red Flag Warnings in Texas, 2013 Red Flag Warnings in Oklahoma, 2013 Every red flag warning in 2013

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.