Alert archive / Oklahoma / Flash Flood Warnings in 2010

Flash Flood Warning 1, NWS Norman, OK

May 25, 2010Beckham County, Custer County, Roger Mills County, Oklahoma

NWS Norman, OK issued this flash flood warning at May 25, 2010, 3:17 AM CDT for Beckham County, Custer County, Roger Mills County, Oklahoma. It was in force for 4 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 25, 2010, 3:17 AM CDT (08:17 UTC)
Expired: May 25, 2010, 7:15 AM CDT
In force: 4 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Beckham County, OK, Custer County, OK, Roger Mills County, OK

The radar

The Altus AFB radar (KFDR), 137 km from the middle of the area, began a volume at 08:21 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 8.3 hours before the alert went out and 206 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: 4563 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 38 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 flash flood 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 flash flood warning went out at May 24, 11:53 PM CDT, 3 hours 24 minutes earlier.

Area forecast discussion, May 24, 11:53 PM CDT, 3 hours 24 minutes before

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Hazardous weather outlook, May 25, 1:50 AM CDT, 1 hour 27 minutes before

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In the hours before

Special weather statement, May 25, 12:29 AM CDT, 2 hours 48 minutes before

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Special weather statement, May 25, 1:00 AM CDT, 2 hours 17 minutes before

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Special weather statement, May 25, 1:37 AM CDT, 1 hour 40 minutes before

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Special weather statement, May 25, 2:03 AM CDT, 1 hour 14 minutes before

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Local storm report, May 25, 2:06 AM CDT, 1 hour 11 minutes before

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Special weather statement, May 25, 2:38 AM CDT, 39 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 24, 7:09 PM CDT	Severe Thunderstorm Warning	OUN	Custer, Dewey, Ellis, Roger Mills, Woodward	66 min
May 24, 7:43 PM CDT	Severe Thunderstorm Warning	OUN	Ellis	47 min
May 24, 7:57 PM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Woods	63 min
May 24, 8:15 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Woodward	45 min
May 24, 8:18 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Woodward	42 min
May 24, 8:23 PM CDT	Tornado Warning	OUN	Ellis, Woodward	37 min
May 24, 8:36 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Roger Mills	24 min
May 24, 8:58 PM CDT	Severe Thunderstorm Warning	OUN	Dewey, Ellis, Major, Roger Mills, Woods, Woodward	62 min
May 24, 9:22 PM CDT	Areal Flood Advisory	OUN	Woodward	3 hr
May 24, 9:59 PM CDT	Severe Thunderstorm Warning	OUN	Major, Woods, Woodward	56 min
May 25, 1:24 AM CDT	Areal Flood Advisory	OUN	Beckham, Custer, Dewey, Ellis, Roger Mills	3 hr
May 25, 6:07 AM CDT	Areal Flood Advisory	OUN	Alfalfa, Grant	3 hr
May 25, 7:23 AM CDT	Areal Flood Advisory	OUN	Beckham, Custer, Roger Mills	3 hr
May 25, 7:59 AM CDT	River Flood Warning	OUN	Major, Woods, Woodward	13 hr
May 24, 7:30 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman	22 min

Nearby

Flash Flood Warnings in Oklahoma, 2010 Every flash flood warning in 2010

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.