Alert archive / Oklahoma / Areal Flood Warnings in 2011

Areal Flood Warning 29, NWS Tulsa, OK

May 23, 2011Nowata County, Oklahoma

NWS Tulsa, OK issued this areal flood warning at May 23, 2011, 10:45 AM CDT for Nowata County, Oklahoma. It was in force for 6 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 23, 2011, 10:45 AM CDT (15:45 UTC)
Expired: May 23, 2011, 4:30 PM CDT
In force: 6 hr
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Flood severity: None

County Nowata County, OK

The radar

The Tulsa radar (KINX), 70 km from the middle of the area, began a volume at 15:48 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

Springfield, MO (KSGF), launched 12:00Z, 3.8 hours before the alert went out and 162 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: 1041 J/kg
Mixed-layer CIN: -257 J/kg
Mixed-layer LCL: 1640 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 247 m²/s²
0-3 km storm-relative helicity: 224 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tulsa, OK wrote its last area forecast discussion before this areal flood warning went out at May 23, 6:46 AM CDT, 3 hours 59 minutes earlier.

Area forecast discussion, May 23, 6:46 AM CDT, 3 hours 59 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
646 AM CDT MON MAY 23 2011

.DISCUSSION...

THE 12Z AVIATION DISCUSSION IS INCLUDED BELOW.

&&

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
SCT MVFR CIGS WILL AFFECT SOME OF THE TERMINALS THRU 16Z. TSRA
WILL BRUSH BY KBVO THIS MORNING AS WELL. OTHERWISE...VFR WILL
PREVAIL OUTSIDE OF TSRA ACTIVITY. SCT DVLPMT IS EXPTD BY 17Z OR
18Z...WITH THE BEST CHCS BTWN 21Z AND 04Z THIS AFTERNOON AND
EVENING WITH THE HEAT OF THE DAY AND SOME UPPER SUPPORT COMING IN
FROM THE WEST.

LACY

&&

.PREV DISCUSSION... /ISSUED 406 AM CDT MON MAY 23 2011/

DISCUSSION...
VOLATILE LATE SPRING PATTERN WILL CONTINUE FOR THE NEXT 72 HOURS
OR SO WITH A MOIST LOW LEVEL AIRMASS PERSISTING AND A DISTURBED
SOUTHWEST FLOW ALOFT AHEAD OF A POTENT UPPER LEVEL SYSTEM...WHICH
WILL BRING POTENTIAL FOR A SIGNIFICANT SEVERE WEATHER OUTBREAK
TUESDAY. SEVERE WEATHER OUTLOOK FOR TODAY IS COMPLICATED BY
POTENTIAL FOR WIDESPREAD CONVECTION WHICH COULD ULTIMATELY AFFECT
THE AVAILABLE INSTABILITY.

SIGNIFICANTLY BACKED MID LEVEL FLOW SHOWING UP ON PROFILER/88D
NETWORK INDICATING A WAVE MOVING OUT OF THE SOUTHERN ROCKIES
EARLY THIS MORNING...WHILE AT THE SFC A BOUNDARY FROM LEFT BY
STORMS YESTERDAY DRAPED ACROSS EASTERN OK NEAR I-40. ALL QUIET SO
FAR BUT WOULD EXPECT TO SEE ELEVATED STORMS INCREASE IN NEXT FEW
HOURS ALONG AND NORTH OF THIS BOUNDARY. BOTH 06Z NAM AND RECENT
RUNS OF HRRR ALSO INDICATE STORM CLUSTERS BREAKING OUT DURING THE
MORNING SOUTH OF THE BOUNDARY AS ABOVE MENTIONED WAVE LIFTS NE
ACROSS THE AREA. WHILE THIS ACTIVITY WOULD POSE SOME SEVERE THREAT
A MORE SUBSTANTIAL THREAT COULD DEVELOP LATE THIS AFTERNOON...
PROVIDED MORNING STORMS DO NOT WORK OVER THE ATMOSPHERE TOO
MUCH...AS ADDITIONAL STORMS FORM NEAR DRY LINE OVER FAR WESTERN OK
AND ON CONVECTIVE BOUNDARIES. NAM STILL FORECASTS CAPE VALUES
AROUND 5000 J/KG FROM SW OK TOWARD US 75 CORRIDOR BY AFTERNOON
WITH ANY STORMS IN THIS ENVIRONMENT QUICKLY BECOMING SEVERE WITH
VERY LARGE HAIL AND ISOLATED TORNADOES...ESPECIALLY NEAR ANY
PERSISTENT SFC BOUNDARIES.

ONE SOLUTION THAT HAS REMAINED CONSISTENT IS FOR STRONG UPPER WAVE
NOW APPROACHING CALIFORNIA COAST TO MOVE ACROSS SOUTHWEST AND
BECOME NEGATIVELY TILTED TUESDAY AFTERNOON...WHILE DRY LINE PUSHES
INTO CENTRAL OK AND SFC BOUNDARY LINGERS ACROSS NE OKLAHOMA AND NW
ARKANSAS. FORECAST INSTABILITY AND DEEP LAYER SHEAR CONTINUE TO
SUGGEST A MAJOR OUTBREAK OF SEVERE WEATHER...INCLUDING STRONG
TORNADOES...LATE TUESDAY AFTERNOON. STORMS ULTIMATELY MAY GROW
INTO A SEVERE SQUALL LINE TUESDAY NIGHT.

UPPER LOW WILL SLOWLY MOVE ACROSS KANSAS WEDNESDAY WITH DEEPER
MOISTURE BEING PUSHED EAST...THOUGH SOME THREAT OF SEVERE WEATHER
POSSIBLE OVER FAR EASTERN AREAS. DRIER AND MORE STABLE AIRMASS
FINALLY SPREADS OVER THE AREA BY THURSDAY FOR A RESPITE FROM THE
ACTIVE WEATHER...WITH BELOW NORMAL TEMPS. WILL CONTINUE WITH A DRY
FORECAST FOR THE HOLIDAY WEEKEND AS MODEL DIFFERENCES ABOUND.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   84  69  86  67 /  60  60  20  60
FSM   82  68  87  69 /  60  60  20  50
MLC   82  71  84  70 /  50  30  20  50
BVO   84  67  84  66 /  60  60  30  70
FYV   77  66  82  69 /  70  70  30  50
BYV   78  63  81  68 /  70  70  40  50
MKO   80  68  85  68 /  60  50  20  60
MIO   84  66  81  68 /  70  70  40  70
F10   81  69  85  68 /  50  40  20  50
HHW   85  70  87  69 /  50  30  10  40

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

AVIATION...30

Hazardous weather outlook, May 23, 9:05 AM CDT, 1 hour 40 minutes before

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In the hours before

Special weather statement, May 23, 9:29 AM CDT, 1 hour 16 minutes before

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Special weather statement, May 23, 9:36 AM CDT, 1 hour 9 minutes before

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Special weather statement, May 23, 10:00 AM CDT, 45 minutes before

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Local storm report, May 23, 10:30 AM CDT, 15 minutes before

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Special weather statement, May 23, 10:31 AM CDT, 14 minutes before

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Local storm report, May 23, 10:39 AM CDT, 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 7:00 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Okfuskee, Okmulgee	45 min
May 22, 7:13 PM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware, Mayes	62 min
May 22, 7:26 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee	49 min
May 22, 7:38 PM CDT	Areal Flood Advisory	TSA	Delaware, Ottawa	112 min
May 22, 7:39 PM CDT	Flash Flood Warning	TSA	Delaware	4 hr
May 22, 7:39 PM CDT	Tornado Warning	TSA	Delaware, Ottawa	36 min
May 22, 7:46 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	29 min
May 22, 7:51 PM CDT	Areal Flood Advisory	TSA	McIntosh, Muskogee, Okfuskee, Okmulgee	84 min
May 22, 7:53 PM CDT	Special Weather Statement	TSA	Cherokee	37 min
May 22, 8:09 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	66 min
May 22, 8:09 PM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Okmulgee, Wagoner	51 min
May 22, 8:16 PM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware	29 min
May 22, 8:19 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Mayes, Wagoner	30 min
May 22, 8:20 PM CDT	Tornado Warning	TSA	Delaware	55 min
May 22, 8:32 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	43 min
May 22, 8:41 PM CDT	Special Weather Statement	TSA	Choctaw	34 min
May 22, 8:45 PM CDT	Tornado Warning	TSA	Delaware	45 min
May 22, 9:01 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	44 min
May 22, 9:15 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Ottawa, Rogers	60 min
May 22, 9:29 PM CDT	Special Weather Statement	TSA	Latimer	31 min
May 22, 9:35 PM CDT	Special Weather Statement	TSA	LeFlore	25 min
May 22, 9:38 PM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pittsburg	30 min
May 22, 10:12 PM CDT	Special Weather Statement	TSA	Creek, Tulsa	33 min
May 22, 10:14 PM CDT	Special Weather Statement	TSA	Delaware	31 min
May 22, 10:30 PM CDT	Severe Thunderstorm Warning	TSA	Rogers, Tulsa, Wagoner	45 min
May 22, 10:37 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Rogers, Tulsa	22 min
May 22, 10:39 PM CDT	Special Weather Statement	TSA	Delaware	36 min
May 22, 10:50 PM CDT	Severe Thunderstorm Warning	TSA	Adair, LeFlore, Sequoyah	40 min
May 22, 10:55 PM CDT	Severe Thunderstorm Warning	TSA	Delaware	35 min
May 22, 11:01 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	59 min
May 22, 11:01 PM CDT	Tornado Warning	TSA	Delaware	29 min
May 22, 11:10 PM CDT	Flash Flood Warning	TSA	Delaware	6 hr
May 22, 11:12 PM CDT	Special Weather Statement	TSA	Mayes, Rogers	33 min
May 23, 5:07 AM CDT	Areal Flood Warning	TSA	Delaware	4 hr
May 23, 5:42 AM CDT	Special Weather Statement	TSA	Osage	33 min
May 23, 5:49 AM CDT	Severe Thunderstorm Warning	TSA	Osage	26 min
May 23, 6:20 AM CDT	Severe Thunderstorm Warning	TSA	Osage	25 min
May 23, 6:50 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	25 min
May 23, 7:12 AM CDT	Special Weather Statement	TSA	Osage	33 min
May 23, 7:16 AM CDT	Special Weather Statement	TSA	Nowata	29 min
May 23, 7:25 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	50 min
May 23, 7:38 AM CDT	Special Weather Statement	TSA	Washington	37 min
May 23, 7:53 AM CDT	Special Weather Statement	TSA	Washington	37 min
May 23, 8:06 AM CDT	Severe Thunderstorm Warning	TSA	Nowata, Washington	39 min
May 23, 8:16 AM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	44 min
May 23, 8:48 AM CDT	Special Weather Statement	TSA	Pushmataha	27 min
May 23, 8:49 AM CDT	Special Weather Statement	TSA	Nowata	26 min
May 23, 8:57 AM CDT	Special Weather Statement	TSA	Craig, Ottawa	33 min
May 23, 9:01 AM CDT	Special Weather Statement	TSA	Pushmataha	44 min
May 23, 9:11 AM CDT	Special Weather Statement	TSA	Pushmataha	34 min
May 23, 9:15 AM CDT	Areal Flood Advisory	TSA	Craig, Delaware, Nowata, Ottawa	2 hr
May 23, 9:26 AM CDT	Special Weather Statement	TSA	Craig	34 min
May 23, 9:29 AM CDT	Special Weather Statement	TSA	Ottawa	31 min
May 23, 9:36 AM CDT	Special Weather Statement	TSA	Choctaw	39 min
May 23, 9:56 AM CDT	Flash Flood Warning	TSA	Craig, Delaware, Nowata, Ottawa	4 hr
May 23, 10:00 AM CDT	Special Weather Statement	TSA	Craig	30 min
May 23, 10:31 AM CDT	Special Weather Statement	TSA	Craig	29 min
May 23, 11:31 AM CDT	Special Weather Statement	TSA	Craig	29 min
May 23, 11:58 AM CDT	Special Weather Statement	TSA	Craig	32 min
May 23, 12:15 PM CDT	Special Weather Statement	TSA	Adair	30 min
May 23, 1:38 PM CDT	Flash Flood Warning	TSA	Craig, Delaware, Nowata, Ottawa, Rogers	6 hr
May 23, 1:40 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	35 min
May 23, 2:08 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Nowata	49 min
May 23, 2:10 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	35 min
May 23, 2:32 PM CDT	River Flood Warning	TSA	Ottawa	42 hr
May 23, 2:37 PM CDT	River Flood Warning	TSA	Adair	60 hr
May 23, 2:37 PM CDT	River Flood Warning	TSA	Cherokee	3 days
May 23, 2:41 PM CDT	River Flood Advisory	TSA	Cherokee, Delaware	54 hr
May 23, 3:20 PM CDT	Flash Flood Watch	TSA	Adair, Cherokee, Craig, Creek, Delaware, Haskell and 14 more	34 hr
May 23, 4:24 PM CDT	Areal Flood Warning	TSA	Nowata	6 hr
May 23, 4:52 PM CDT	Severe Thunderstorm Warning	TSA	Osage	53 min
May 23, 5:06 PM CDT	Tornado Warning	TSA	Osage	24 min
May 23, 5:29 PM CDT	Tornado Warning	TSA	Osage, Pawnee	31 min
May 23, 5:41 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers	32 min
May 23, 5:55 PM CDT	Tornado Warning	TSA	Osage, Pawnee	50 min
May 23, 6:47 PM CDT	Areal Flood Advisory	TSA	Washington	118 min
May 23, 6:59 PM CDT	Special Weather Statement	TSA	Delaware, Mayes, Wagoner	46 min
May 22, 7:52 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	38 min
May 22, 8:30 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	60 min
May 22, 8:39 PM CDT	Tornado Warning	TSA	Benton	16 min

Nearby

Areal Flood Warnings in Oklahoma, 2011 Every areal flood warning in 2011

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.