Alert archive / Oklahoma / Flash Flood Watches in 2014

Flash Flood Watch 3, NWS Norman, OK

July 16, 201437 counties in Oklahoma; 8 counties in Texas

NWS Norman, OK issued this flash flood watch at Jul 16, 2014, 3:15 AM CDT for 37 counties in Oklahoma; 8 counties in Texas. It took effect at Jul 16, 2014, 7:00 PM CDT. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued: Jul 16, 2014, 3:15 AM CDT (08:15 UTC)
In effect from: Jul 16, 2014, 7:00 PM CDT
Expired: Jul 17, 2014, 8:49 PM CDT
In force: 26 hr
Issued by: NWS Norman, OK
Flood severity: None

All 45 counties

Atoka County, OK, Beckham County, OK, Blaine County, OK, Bryan County, OK, Caddo County, OK, Canadian County, OK, Carter County, OK, Cleveland County, OK, Coal County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Hughes County, OK, Jackson County, OK, Jefferson County, OK, Johnston County, OK, Kiowa County, OK, Love County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Oklahoma County, OK, Pontotoc County, OK, Pottawatomie County, OK, Roger Mills County, OK, Seminole County, OK, Stephens County, OK, Tillman County, OK, Washita County, OK, Woodward County, OK, Archer County, TX, Baylor County, TX, Clay County, TX, Foard County, TX, Hardeman County, TX, Knox County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 84 km from the middle of the area, began a volume at 08:17 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, 8.3 hours before the alert went out and 89 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: 2081 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 37 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 watch 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 watch went out at Jul 16, 12:39 AM CDT, 2 hours 36 minutes earlier.

Area forecast discussion, Jul 16, 12:39 AM CDT, 2 hours 36 minutes before

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Hazardous weather outlook, Jul 15, 11:34 PM CDT, 3 hours 41 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 16, 6:11 PM CDT	Areal Flood Advisory	OUN	Alfalfa, Garfield, Kingfisher, Major	109 min

Nearby

Flash Flood Watches in Oklahoma, 2014 Flash Flood Watches in Texas, 2014 Every flash flood watch in 2014

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.