Alert archive / Oklahoma / Flash Flood Warnings in 2015

Flash Flood Warning 126, NWS Norman, OK

July 8, 20158 counties in Oklahoma

NWS Norman, OK issued this flash flood warning at Jul 8, 2015, 12:57 AM CDT for 8 counties in Oklahoma. 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: Jul 8, 2015, 12:57 AM CDT (05:57 UTC)
Expired: Jul 8, 2015, 9:00 AM CDT
In force: 8 hr
Issued by: NWS Norman, OK
Area: Storm-based polygon
Flood severity: None

Counties Carter County, OK, Hughes County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Seminole County, OK

The radar

The Norman radar (KTLX), 102 km from the middle of the area, began a volume at 05:59 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, 6.0 hours before the alert went out and 96 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: 8 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 557 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 57 m²/s²
0-3 km storm-relative helicity: 175 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 Jul 7, 6:44 PM CDT, 6 hours 13 minutes earlier.

Area forecast discussion, Jul 7, 6:44 PM CDT, 6 hours 13 minutes before

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Hazardous weather outlook, Jul 7, 11:49 AM CDT, 13 hours 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE NORMAN OK
1149 AM CDT TUE JUL 7 2015

OKZ004>048-050>052-TXZ083>090-081700-
HARPER-WOODS-ALFALFA-GRANT-KAY-ELLIS-WOODWARD-MAJOR-GARFIELD-
NOBLE-ROGER MILLS-DEWEY-CUSTER-BLAINE-KINGFISHER-LOGAN-PAYNE-
BECKHAM-WASHITA-CADDO-CANADIAN-OKLAHOMA-LINCOLN-GRADY-MCCLAIN-
CLEVELAND-POTTAWATOMIE-SEMINOLE-HUGHES-HARMON-GREER-KIOWA-JACKSON-
TILLMAN-COMANCHE-STEPHENS-GARVIN-MURRAY-PONTOTOC-COAL-COTTON-
JEFFERSON-CARTER-JOHNSTON-ATOKA-LOVE-MARSHALL-BRYAN-HARDEMAN-
FOARD-WILBARGER-WICHITA-KNOX-BAYLOR-ARCHER-CLAY-
1149 AM CDT TUE JUL 7 2015

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTHERN...
WESTERN...CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH
TEXAS.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

.FLOODING...
A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR A LARGE PART
OF OKLAHOMA AND WESTERN NORTH TEXAS. PLEASE REFER TO THE WATCH FOR
DETAILS. THE HEAVIEST ADDITIONAL RAINFALL WILL BE OVER PARTS OF
NORTH TEXAS... AND SOUTHERN AND CENTRAL OKLAHOMA THROUGH TONIGHT.

.THUNDERSTORMS...
THUNDERSTORMS ARE POSSIBLE THROUGH TONIGHT ACROSS THE AREA...
ESPECIALLY IN PARTS OF NORTH TEXAS AND SOUTHERN OKLAHOMA. NO
SEVERE THUNDERSTORMS ARE EXPECTED...HOWEVER A FEW STORMS MAY
PRODUCE HEAVY RAIN AND WIND GUSTS UP TO 40 MPH.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY...

.FLOODING....
FLOODING WILL REMAIN POSSIBLE WEDNESDAY...ESPECIALLY ACROSS
SOUTHERN AND CENTRAL OKLAHOMA...AND WESTERN NORTH TEXAS.

.THUNDERSTORMS....
THUNDERSTORMS WILL CONTINUE WEDNESDAY INTO AT LEAST THURSDAY.
LITTLE OR NO RAIN IS EXPECTED FRIDAY THROUGH MONDAY.

.HEAT...
HOT AND HUMID WEATHER WILL RETURN SUNDAY AND MONDAY.

GET GRAPHICS AND MORE DETAILS AT WEATHER.GOV/NORMAN...AND FOLLOW
OUR WEATHER FORECAST OFFICE ON TWITTER AND FACEBOOK.

MBS/EM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 8:13 PM CDT	River Flood Warning	OUN	Hughes, Seminole	50 hr
Jul 7, 9:24 PM CDT	River Flood Warning	OUN	Bryan	3 days
Jul 7, 9:26 PM CDT	River Flood Warning	OUN	Atoka, Bryan	6 days
Jul 7, 9:49 PM CDT	Areal Flood Advisory	OUN	Carter, Garvin, Johnston, McClain, Murray, Pontotoc	3 hr
Jul 7, 9:59 PM CDT	Areal Flood Warning	OUN	Caddo, Comanche, Cotton, Tillman	6 hr
Jul 7, 10:07 PM CDT	Areal Flood Advisory	OUN	Atoka, Coal, Hughes	3 hr
Jul 7, 11:07 PM CDT	Special Weather Statement	OUN	Pontotoc	38 min
Jul 7, 11:15 PM CDT	Areal Flood Advisory	OUN	Carter, Johnston, Love, Marshall	3 hr
Jul 7, 11:45 PM CDT	Areal Flood Advisory	OUN	Coal, Hughes, Johnston, Pontotoc, Pottawatomie, Seminole	3 hr
Jul 7, 11:49 PM CDT	Special Weather Statement	OUN	Pontotoc	41 min
Jul 8, 12:30 AM CDT	Areal Flood Advisory	OUN	Hughes, Pontotoc	3 hr
Jul 8, 1:38 AM CDT	Special Weather Statement	OUN	Johnston	37 min
Jul 8, 2:14 AM CDT	Areal Flood Advisory	OUN	Bryan, Coal, Johnston, Marshall, Pontotoc	3 hr
Jul 8, 3:33 AM CDT	Areal Flood Advisory	OUN	Carter, Lincoln, Love, Murray, Pontotoc, Pottawatomie and 1 more	117 min
Jul 8, 5:08 AM CDT	Areal Flood Advisory	OUN	Atoka, Coal, Hughes, Johnston, Marshall, Pontotoc	4 hr
Jul 8, 5:26 AM CDT	Areal Flood Advisory	OUN	Carter, Jefferson, Love, Murray, Pontotoc	3 hr
Jul 8, 8:29 AM CDT	River Flood Warning	OUN	Cotton	30 hr
Jul 8, 8:34 AM CDT	Areal Flood Advisory	OUN	Carter, Hughes, Johnston, Murray, Pontotoc, Seminole	3 hr
Jul 8, 8:57 AM CDT	Flash Flood Warning	OUN	Atoka, Carter, Coal, Hughes, Johnston, Marshall and 1 more	3 hr
Jul 8, 10:54 AM CDT	Areal Flood Advisory	OUN	Atoka, Bryan, Coal, Johnston	6 hr
Jul 8, 11:44 AM CDT	River Flood Warning	OUN	Hughes	20 hr
Jul 8, 4:27 PM CDT	Areal Flood Warning	OUN	Carter, Coal, Hughes, Johnston, Love, Marshall and 3 more	10 hr

Nearby

Flash Flood Warnings in Oklahoma, 2015 Every flash flood warning in 2015

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.