Alert archive / Oklahoma / Flood Watches in 2016

Flood Watch 5, NWS Norman, OK

May 31, 201639 counties in Oklahoma; 8 counties in Texas

NWS Norman, OK issued this flood watch at May 31, 2016, 10:34 AM CDT for 39 counties in Oklahoma; 8 counties in Texas. It took effect at May 31, 2016, 11:00 AM CDT. It was in force for 71 hr.

The area

The counties it named.

The facts

Issued: May 31, 2016, 10:34 AM CDT (15:34 UTC)
In effect from: May 31, 2016, 11:00 AM CDT
Expired: Jun 3, 2016, 10:20 AM CDT
In force: 71 hr
Issued by: NWS Norman, OK
Flood severity: None

All 47 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, Garfield County, OK, Garvin County, OK, Grady County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Jefferson County, OK, Johnston County, OK, Kingfisher County, OK, Kiowa County, OK, Lincoln County, OK, Logan County, OK, Love County, OK, Major County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Noble County, OK, Oklahoma County, OK, Payne County, OK, Pontotoc County, OK, Pottawatomie County, OK, Roger Mills County, OK, Stephens County, OK, Tillman County, OK, Washita 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 Norman radar (KTLX), 92 km from the middle of the area, began a volume at 15:37 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 12:00Z, 3.6 hours before the alert went out and 76 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: 682 J/kg
Mixed-layer CIN: -167 J/kg
Mixed-layer LCL: 1132 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 147 m²/s²
0-3 km storm-relative helicity: 197 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this 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 flood watch went out at May 31, 6:58 AM CDT, 3 hours 36 minutes earlier.

Area forecast discussion, May 31, 6:58 AM CDT, 3 hours 36 minutes before

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Hazardous weather outlook, May 31, 9:15 AM CDT, 1 hour 19 minutes before

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In the hours before

Special weather statement, May 31, 6:58 AM CDT, 3 hours 36 minutes before

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Special weather statement, May 31, 7:03 AM CDT, 3 hours 31 minutes before

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Special weather statement, May 31, 7:33 AM CDT, 3 hours 1 minute before

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Special weather statement, May 31, 7:35 AM CDT, 2 hours 59 minutes before

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Special weather statement, May 31, 8:02 AM CDT, 2 hours 32 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
802 AM CDT TUE MAY 31 2016

OKZ019-020-025-026-029>031-311345-
OKLAHOMA OK-POTTAWATOMIE OK-LOGAN OK-LINCOLN OK-CLEVELAND OK-
PAYNE OK-SEMINOLE OK-
802 AM CDT TUE MAY 31 2016

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN OKLAHOMA...
POTTAWATOMIE...SOUTHEASTERN LOGAN...LINCOLN...NORTHERN CLEVELAND...
SOUTHEASTERN PAYNE AND NORTHWESTERN SEMINOLE COUNTIES UNTIL 845 AM
CDT...

AT 800 AM CDT...THUNDERSTORMS WERE ALONG A LINE EXTENDING FROM
NEAR RIPLEY TO 7 MILES NORTHWEST OF MEEKER TO FAR NORTHEAST NORMAN...MOVING
EAST AT 35 MPH. GUSTY WINDS WILL EXTEND WELL OUT AHEAD OF THE STORMS.

HAZARDS INCLUDE...
WIND GUSTS TO 40 MPH...

LOCATIONS IMPACTED INCLUDE...
EASTERN OKLAHOMA CITY...NORMAN...SOUTHEASTERN EDMOND...MOORE...MIDWEST
CITY...SHAWNEE...DEL CITY...CUSHING...SEMINOLE...TECUMSEH...CHANDLER...
CHOCTAW...HARRAH...MCLOUD...SPENCER...PERKINS...JONES...STROUD...NICOMA PARK
AND PRAGUE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3508 9679 3531 9761 3532 9761 3562 9732
      3607 9710 3605 9662 3544 9663 3539 9661
      3545 9655
TIME...MOT...LOC 1300Z 284DEG 30KT 3599 9688 3558 9698 3519 9736

11

Special weather statement, May 31, 9:50 AM CDT, 44 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
950 AM CDT TUE MAY 31 2016

OKZ039-311515-
STEPHENS OK-
950 AM CDT TUE MAY 31 2016

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL STEPHENS COUNTY UNTIL
1015 AM CDT...

AT 947 AM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER DUNCAN...MOVING
NORTHEAST AT 20 MPH.

HAZARDS INCLUDE...
HAIL UP TO ONE-HALF INCH DIAMETER...
WIND GUSTS TO 40 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

LAT...LON 3443 9799 3454 9805 3465 9778 3446 9768
TIME...MOT...LOC 1447Z 246DEG 16KT 3450 9795

..SPEG.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 31, 2:29 AM CDT	Special Weather Statement	OUN	Harper	61 min
May 31, 3:10 AM CDT	Special Weather Statement	OUN	Harper	35 min
May 31, 3:25 AM CDT	Special Weather Statement	OUN	Harper	50 min
May 31, 3:45 AM CDT	Special Weather Statement	OUN	Woodward	45 min
May 31, 4:01 AM CDT	Special Weather Statement	OUN	Woods	44 min
May 31, 4:18 AM CDT	Special Weather Statement	OUN	Kingfisher	42 min
May 31, 4:22 AM CDT	Special Weather Statement	OUN	Alfalfa, Woods, Woodward	53 min
May 31, 4:24 AM CDT	Special Weather Statement	OUN	Garfield	66 min
May 31, 4:29 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Major, Woods, Woodward	61 min
May 31, 5:01 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Blaine, Dewey, Garfield, Grant, Kingfisher and 2 more	44 min
May 31, 5:30 AM CDT	Special Weather Statement	OUN	Garfield, Kingfisher, Logan	30 min
May 31, 5:43 AM CDT	Severe Thunderstorm Warning	OUN	Alfalfa, Garfield, Grant, Kay, Major, Noble	62 min
May 31, 5:58 AM CDT	Special Weather Statement	OUN	Blaine, Kingfisher	62 min
May 31, 6:08 AM CDT	Severe Thunderstorm Warning	OUN	Kingfisher	42 min
May 31, 6:39 AM CDT	Special Weather Statement	OUN	Logan	51 min
May 31, 6:46 AM CDT	Special Weather Statement	OUN	Canadian	44 min
May 31, 6:48 AM CDT	Special Weather Statement	OUN	Payne	57 min
May 31, 6:58 AM CDT	Special Weather Statement	OUN	Kay, Noble	32 min
May 31, 7:03 AM CDT	Special Weather Statement	OUN	Logan, Oklahoma	57 min
May 31, 7:33 AM CDT	Special Weather Statement	OUN	Cleveland, Grady, Lincoln, Oklahoma	27 min
May 31, 7:35 AM CDT	Special Weather Statement	OUN	Kay, Payne	25 min
May 31, 8:02 AM CDT	Special Weather Statement	OUN	Lincoln, Pottawatomie	43 min
May 31, 9:50 AM CDT	Special Weather Statement	OUN	Stephens	25 min
May 31, 12:05 PM CDT	Areal Flood Advisory	OUN	Johnston, Pontotoc	115 min
May 31, 12:21 PM CDT	Flash Flood Warning	OUN	Johnston, Pontotoc	3 hr
May 31, 12:26 PM CDT	Areal Flood Advisory	OUN	Hughes	2 hr
May 31, 1:14 PM CDT	Flash Flood Warning	OUN	Love	3 hr
May 31, 1:16 PM CDT	Special Weather Statement	OUN	Marshall	29 min
May 31, 1:31 PM CDT	Special Weather Statement	OUN	Atoka	29 min
May 31, 1:46 PM CDT	Severe Thunderstorm Warning	OUN	Atoka, Bryan	44 min
May 31, 1:50 PM CDT	Severe Thunderstorm Warning	OUN	Marshall	40 min
May 31, 1:56 PM CDT	Flash Flood Warning	OUN	Marshall	3 hr
May 31, 2:15 PM CDT	Special Weather Statement	OUN	Carter	30 min
May 31, 2:19 PM CDT	Severe Thunderstorm Warning	OUN	Bryan	41 min
May 31, 2:22 PM CDT	Areal Flood Advisory	OUN	Carter	3 hr
May 31, 4:46 PM CDT	Special Weather Statement	OUN	Oklahoma	29 min
May 31, 5:17 PM CDT	Special Weather Statement	OUN	Oklahoma	28 min
May 31, 5:20 PM CDT	Areal Flood Advisory	OUN	Cleveland, Grady, McClain, Oklahoma	3 hr
May 31, 5:25 PM CDT	Special Weather Statement	OUN	Tillman	35 min
May 31, 5:33 PM CDT	Severe Thunderstorm Warning	OUN	Grady	27 min
May 31, 5:52 PM CDT	Severe Thunderstorm Warning	OUN	Oklahoma	26 min
May 31, 6:01 PM CDT	Severe Thunderstorm Warning	OUN	Canadian, Grady	44 min
May 31, 6:21 PM CDT	Flash Flood Warning	OUN	Grady	3 hr
May 31, 6:23 PM CDT	Areal Flood Advisory	OUN	Tillman	3 hr
May 31, 6:51 PM CDT	Special Weather Statement	OUN	Grady	24 min
May 30, 10:17 PM CDT	Special Weather Statement	OUN	Knox	43 min
May 31, 12:33 PM CDT	Areal Flood Advisory	OUN	Archer	117 min

Nearby

Flood Watches in Oklahoma, 2016 Flood Watches in Texas, 2016 Every flood watch 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.