Alert archive / Oklahoma / Special Weather Statements in 2016

Special Weather Statement, NWS Tulsa, OK

August 29, 2016Nowata County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Aug 29, 2016, 6:32 PM CDT for Nowata County, Oklahoma. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 29, 2016, 6:32 PM CDT (23:32 UTC)
Expired
Aug 29, 2016, 7:00 PM CDT
In force
28 min
Issued by
NWS Tulsa, OK

County Nowata County, OK

The radar

The Tulsa radar (KINX), 79 km from the middle of the area, began a volume at 23:33 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, 11.5 hours before the alert went out and 175 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 2016-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1199 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2016-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1199 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1027 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 29, 3:10 PM CDT, 3 hours 22 minutes earlier.

Area forecast discussion, Aug 29, 3:10 PM CDT, 3 hours 22 minutes before
Area Forecast Discussion
National Weather Service Tulsa OK
310 PM CDT MON AUG 29 2016

.DISCUSSION...
Coverage of convection this afternoon has been reinforced by
several outflow boundaries...mainly across northeast Oklahoma. As
has been the case the past several days...expect storm coverage to
diminish with the loss of daytime heating. Scope of forecast
largely unchanged with this issuance. Uncapped...moist
environment will stay in place for at least the next several
days...which will maintain daily thunderstorm chances.
Thunderstorm coverage on Wednesday likely to be
enhanced...especially across northeast Oklahoma and northwest
Arkansas as a surface boundary approaches from the northeast.
Thunderstorm chances will decrease from north to south towards the
end of the week...as drier air will begin to filter across the
area along with upper ridging that will strengthen over the
plains. Settled conditions are expected through the
weekend...however at that time upper ridge becomes suppressed and
improved flow will be just to the north of the area. Moisture will
also begin to return at that time....and the next chances for rain
and thunder may come early next week as another cold front
approaches the region.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   73  92  72  88 /  20  20  20  50
FSM   73  93  73  92 /  10  20  10  20
MLC   71  92  72  92 /  10  20  10  30
BVO   71  90  70  85 /  20  20  30  50
FYV   69  90  68  86 /  10  20  20  50
BYV   70  88  68  85 /  10  20  20  50
MKO   72  92  70  90 /  20  20  20  40
MIO   70  90  69  85 /  20  20  20  50
F10   72  92  71  90 /  20  20  20  50
HHW   73  93  73  94 /  10  20  10  20

&&

.TSA Watches/Warnings/Advisories...
OK...None.
AR...None.
&&

SHORT TERM...22
LONG TERM....23
Hazardous weather outlook, Aug 29, 4:08 PM CDT, 2 hours 24 minutes before
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In the hours before

Special weather statement, Aug 29, 3:55 PM CDT, 2 hours 37 minutes before
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Special weather statement, Aug 29, 4:31 PM CDT, 2 hours 1 minute before
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Special weather statement, Aug 29, 4:40 PM CDT, 1 hour 52 minutes before
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Special weather statement, Aug 29, 5:05 PM CDT, 1 hour 27 minutes before
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Special weather statement, Aug 29, 6:04 PM CDT, 28 minutes before
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Special weather statement, Aug 29, 6:32 PM CDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 29, 2:50 PM CDTSpecial Weather StatementTSAWagoner25 min
Aug 29, 2:57 PM CDTSevere Thunderstorm WarningTSALeFlore14 min
Aug 29, 5:05 PM CDTSpecial Weather StatementTSASequoyah25 min
Aug 29, 6:04 PM CDTSpecial Weather StatementTSAWagoner26 min
Aug 29, 6:48 PM CDTSpecial Weather StatementTSAWagoner27 min
Aug 29, 6:59 PM CDTSpecial Weather StatementTSANowata31 min
Aug 29, 2:32 PM CDTSpecial Weather StatementTSACarroll28 min
Aug 29, 2:49 PM CDTSpecial Weather StatementTSASebastian26 min
Aug 29, 3:07 PM CDTSpecial Weather StatementTSABenton38 min
Aug 29, 3:19 PM CDTSevere Thunderstorm WarningTSABenton26 min
Aug 29, 3:43 PM CDTSpecial Weather StatementTSABenton32 min
Aug 29, 3:55 PM CDTSpecial Weather StatementTSAFranklin35 min
Aug 29, 4:31 PM CDTSpecial Weather StatementTSASebastian29 min
Aug 29, 4:40 PM CDTSpecial Weather StatementTSASebastian35 min

Nearby

Special Weather Statements in Oklahoma, 2016Every special weather statement 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.