Alert archive / Oklahoma / Special Weather Statements in 2013

Special Weather Statement, NWS Tulsa, OK

March 30, 2013Nowata County, Oklahoma

NWS Tulsa, OK issued this special weather statement at Mar 30, 2013, 8:01 PM CDT for Nowata County, Oklahoma. It was in force for 29 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: Mar 30, 2013, 8:01 PM CDT (01:01 UTC)
Expired: Mar 30, 2013, 8:30 PM CDT
In force: 29 min
Issued by: NWS Tulsa, OK

County Nowata County, OK

The radar

The Tulsa radar (KINX), 58 km from the middle of the area, began a volume at 01:04 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 00:00Z, 1.0 hours before the alert went out and 154 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: 453 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1112 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 218 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Mar 30, 6:37 PM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Mar 30, 6:37 PM CDT, 1 hour 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
637 PM CDT SAT MAR 30 2013

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
MAIN ISSUE THROUGH THE TAF PERIOD WILL BE THUNDERSTORM CHANCES/
TIMING. STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE TO DRIFT
SOUTH ACROSS FAR SOUTHWEST MO AND COULD IMPACT THE FYV/XNA AREAS
LATER THIS EVENING. IFR CONDITIONS WILL BE LIKELY IN THE STRONGER
ACTIVITY. ALTHOUGH TIMING IS NOT AS CERTAIN...ADDITIONAL STORMS
WILL BEGIN TO DEVELOP ACROSS EASTERN OKLAHOMA THIS EVENING AND
CONTINUE THROUGH THE OVERNIGHT HOURS AS ACTIVITY DRIFTS SOUTH/
SOUTHEAST.

&&

.PREV DISCUSSION... /ISSUED 413 PM CDT SAT MAR 30 2013/

DISCUSSION...
SHOWER AND THUNDERSTORM CHANCES WILL INCREASE ONCE AGAIN TONIGHT
INTO EARLY SUNDAY AS A COLD FRONT MOVES SOUTH INTO THE AREA AND
ANOTHER UPPER LEVEL IMPULSE MOVES THROUGH IN THE NORTHWEST FLOW
ALOFT. LARGE HAIL WILL BE POSSIBLE WITH A FEW OF THE STORMS
OVERNIGHT BUT ORGANIZED SEVERE WEATHER IS NOT LIKELY.

THE COLD FRONT THAT WILL MOVE THROUGH THE AREA MONDAY LOOKS SLOWER
AND NOT AS IMPRESSIVE AS IT WAS LOOKING AT THIS TIME YESTERDAY. AS
A RESULT...THERE WILL BE A WINDOW OF OPPORTUNITY FOR TEMPERATURES
TO WARM MONDAY...EVEN IN NORTHEAST OKLAHOMA. ANY PRECIPITATION IS
EXPECTED TO BE POST FRONTAL IN NATURE SO WILL ONLY CARRY LOW POPS
IN NORTHEAST OKLAHOMA MONDAY AFTERNOON.

THE MODELS ARE NOW CONVERGING TOWARDS THE SOLUTION THAT THE ECMWF
HAS BEEN ADVERTISING WITH A CLOSED LOW NOW FORECAST TO TRACK OVER
OR NEAR THE AREA BY THURSDAY. THIS WILL RESULT IN A CLOUDY...DAMP
AND CHILLY PERIOD FROM TUESDAY INTO THURSDAY. ONCE THIS SYSTEM
MOVES BY...A QUICK WARMUP TO NEAR OR ABOVE NORMAL TEMPERATURES
WILL TAKE PLACE FRIDAY THROUGH NEXT WEEKEND AND LIKELY BEYOND.
BOTH THE ECMWF AND GFS HINT AT A CHANGE IN THE UPPER LEVEL PATTERN
BY THE SECOND WEEK OF APRIL WHICH MAY EVENTUALLY KICK-START THE
SPRING SEVERE WEATHER SEASON.

STAYED CLOSE TO GUIDANCE TEMPERATURES THROUGH SUNDAY NIGHT AND
LEANED TOWARDS THE ECMWF MONDAY...WITH FRONTAL TIMING BEING KEY
TO THE HIGHS THAT DAY.

&&

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

AVIATION...12

Hazardous weather outlook, Mar 30, 4:56 PM CDT, 3 hours 5 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
456 PM CDT SAT MAR 30 2013

ARZ001-002-010-011-019-020-029-OKZ049-053>076-311000-
ADAIR OK-BENTON AR-CARROLL AR-CHEROKEE OK-CHOCTAW OK-CRAIG OK-
CRAWFORD AR-CREEK OK-DELAWARE OK-FRANKLIN AR-HASKELL OK-LATIMER OK-
LE FLORE OK-MADISON AR-MAYES OK-MCINTOSH OK-MUSKOGEE OK-NOWATA OK-
OKFUSKEE OK-OKMULGEE OK-OSAGE OK-OTTAWA OK-PAWNEE OK-PITTSBURG OK-
PUSHMATAHA OK-ROGERS OK-SEBASTIAN AR-SEQUOYAH OK-TULSA OK-WAGONER OK-
WASHINGTON OK-WASHINGTON AR-
456 PM CDT SAT MAR 30 2013

THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.

.DAY ONE...THROUGH TONIGHT.

SEVERE THUNDERSTORM.
	RISK...ELEVATED.
	AREA...EASTERN OKLAHOMA...WEST CENTRAL AND NORTHWEST ARKANSAS.
	ONSET...EVENING.

FLASH FLOOD.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA...WEST CENTRAL AND NORTHWEST ARKANSAS.
	ONSET...EVENING.

HEAVY RAIN.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA...WEST CENTRAL AND NORTHWEST ARKANSAS.
	ONSET...EVENING.

DISCUSSION...
AMPLE SURFACE HEATING IN THE WAKE OF THE MORNING STORMS HAS RESULTED IN
SUFFICIENT LOW LEVEL INSTABILITY ACROSS MOST OF EASTERN OKLAHOMA
AS OF LATE AFTERNOON. AS THE ATMOSPHERE CONTINUES TO RECOVER INTO
THE EVENING...ADDITIONAL THUNDERSTORMS WILL LIKELY DEVELOP. LITTLE
IN THE WAY OF A CAP IN PLACE SUGGESTS STORM FORMATION IS POSSIBLE
JUST ABOUT ANYWHERE ACROSS EASTERN OKLAHOMA WHERE SURFACE
INSTABILITY IS HIGHEST. A CLUSTER OF STORMS CURRENTLY ACROSS
SOUTHEAST KANSAS HAVE THE POTENTIAL TO BACKBUILD ACROSS NORTHEAST
OKLAHOMA AS WELL BY EARLY OR MID EVENING. THE BEST CHANCES FOR
ORGANIZED ACTIVITY WILL REMAIN ALONG A WEAK SURFACE BOUNDARY THAT
WILL MOVE INTO NORTHEAST OKLAHOMA LATER TONIGHT IN CONJUNCTION
WITH AN UPPER LEVEL DISTURBANCE. LARGE HAIL WILL BE THE PRIMARY
RISK WITH ANY SEVERE STORMS TONIGHT.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
ACTIVATION OF THE REGIONAL SPOTTER NETWORK LIKELY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
SUNDAY...THUNDERSTORM POTENTIAL.
MONDAY...HIGH WIND POTENTIAL.
TUESDAY THROUGH FRIDAY...NO HAZARDS.

EXTENDED DISCUSSION...
SHOWERS AND THUNDERSTORMS WILL CONTINUE NEAR THE FRONTAL BOUNDARY ON
SUNDAY...WITH HIGHEST CHANCES SOUTH OF INTERSTATE 40. A STRONGER
COLD FRONT SHOULD MOVE THROUGH THE AREA MONDAY AFTERNOON...WITH
RAIN CHANCES INCREASING FROM NORTH TO SOUTH BEHIND THE BOUNDARY.

CONSIDERABLY COOLER WEATHER IS EXPECTED TUESDAY THROUGH THURSDAY.
A SLOW MOVING UPPER SYSTEM WILL BRING CONTINUED RAIN CHANCES IN
THAT TIME FRAME. ONCE THIS SYSTEM CLEARS...TEMPERATURES WILL BEGIN
TO REBOUND TOWARDS THE END OF NEXT WEEK.

WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.

In the hours before

Local storm report, Mar 30, 7:46 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
746 PM CDT SAT MAR 30 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0720 PM     HAIL             OWASSO                  36.27N 95.85W
03/30/2013  E0.75 INCH       TULSA              OK   PUBLIC

&&

AEJ

Local storm report, Mar 30, 7:48 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
748 PM CDT SAT MAR 30 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0735 PM     HAIL             CATOOSA                 36.19N 95.75W
03/30/2013  E0.25 INCH       ROGERS             OK   EMERGENCY MNGR

            DURATION ABOUT 2 MINUTES.

&&

AEJ

Special weather statement, Mar 30, 7:50 PM CDT, 11 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
750 PM CDT SAT MAR 30 2013

OKZ061-062-310115-
MAYES OK-ROGERS OK-
750 PM CDT SAT MAR 30 2013

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 815 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     WESTERN MAYES AND SOUTHERN ROGERS

AT 751 PM CDT...A STRONG THUNDERSTORM WAS LOCATED 2 MILES NORTHWEST
OF TIAWAH...MOVING EAST AT 30 MPH. SOME LOCATIONS THAT WILL BE
AFFECTED BY THIS STORM INCLUDE...CLAREMORE...TIAWAH AND PRYOR.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3642 9526 3623 9521 3621 9564 3633 9567
TIME...MOT...LOC 0051Z 262DEG 27KT 3628 9557

Local storm report, Mar 30, 7:51 PM CDT, 10 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
751 PM CDT SAT MAR 30 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0730 PM     HAIL             OWASSO                  36.27N 95.85W
03/30/2013  E1.00 INCH       TULSA              OK   PUBLIC

&&

AEJ

Local storm report, Mar 30, 8:00 PM CDT, 1 minute before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
800 PM CDT SAT MAR 30 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0753 PM     HAIL             3 SE CATOOSA            36.16N 95.71W
03/30/2013  E0.88 INCH       WAGONER            OK   EMERGENCY MNGR

            ON HIGHWAY 412.

&&

AEJ

Special weather statement, Mar 30, 8:01 PM CDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
801 PM CDT SAT MAR 30 2013

OKZ056-057-310130-
CRAIG OK-NOWATA OK-
801 PM CDT SAT MAR 30 2013

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 830 PM CDT
FOR THE FOLLOWING COUNTIES...

IN NORTHEAST OKLAHOMA
     WESTERN CRAIG AND SOUTHERN NOWATA

AT 802 PM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 3 MILES NORTHEAST OF NOWATA TO 5 MILES WEST OF
WATOVA...MOVING EAST AT 25 MPH. SOME LOCATIONS THAT WILL BE AFFECTED
BY THESE STORMS INCLUDE...NOWATA...WATOVA AND NEW ALLUWE.

THESE STORMS WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL AND WIND
GUSTS TO 40 MPH. RESIDENTS IN THESE AREAS SHOULD REMAIN ALERT IN CASE
THE SIGNIFICANT WEATHER ADVISORY IS UPGRADED TO A WARNING.

LAT...LON 3676 9518 3659 9542 3660 9581 3666 9581
      3678 9563
TIME...MOT...LOC 0102Z 271DEG 22KT 3673 9558 3664 9573

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 7:13 PM CDT	Special Weather Statement	TSA	Tulsa	32 min
Mar 30, 7:40 PM CDT	Special Weather Statement	TSA	Okfuskee	35 min
Mar 30, 7:41 PM CDT	Special Weather Statement	TSA	Wagoner	34 min
Mar 30, 7:50 PM CDT	Special Weather Statement	TSA	Mayes	25 min
Mar 30, 7:57 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Wagoner	63 min
Mar 30, 8:24 PM CDT	Special Weather Statement	TSA	Rogers	36 min
Mar 30, 8:38 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Rogers	52 min
Mar 30, 8:45 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Wagoner	60 min
Mar 30, 8:53 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa, Rogers	67 min
Mar 30, 9:10 PM CDT	Tornado Warning	TSA	Cherokee, Muskogee, Wagoner	35 min
Mar 30, 9:19 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Ottawa	56 min
Mar 30, 9:21 PM CDT	Severe Thunderstorm Warning	TSA	Delaware, Mayes, Rogers	54 min
Mar 30, 9:31 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Muskogee, Sequoyah, Wagoner	59 min
Mar 30, 9:33 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	57 min
Mar 30, 10:04 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes	56 min
Mar 30, 10:09 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Haskell, Muskogee, Sequoyah	66 min
Mar 30, 10:31 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg	44 min
Mar 30, 10:41 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Muskogee, Sequoyah	64 min
Mar 30, 11:08 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	67 min
Mar 30, 11:19 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, Sequoyah	41 min
Mar 30, 11:23 PM CDT	Special Weather Statement	TSA	Pushmataha	37 min
Mar 30, 11:38 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg, Pushmataha	67 min
Mar 30, 11:58 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	62 min
Mar 31, 12:38 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	67 min
Mar 31, 3:27 AM CDT	Special Weather Statement	TSA	Osage	63 min
Mar 31, 3:43 AM CDT	Special Weather Statement	TSA	Osage, Pawnee, Washington	47 min
Mar 31, 4:20 AM CDT	Special Weather Statement	TSA	Craig, Creek, Nowata, Pawnee, Rogers, Tulsa and 1 more	55 min
Mar 31, 5:13 AM CDT	Special Weather Statement	TSA	Delaware, Mayes, Tulsa, Wagoner	47 min
Mar 31, 5:17 AM CDT	Special Weather Statement	TSA	Latimer, Pittsburg	43 min
Mar 31, 5:44 AM CDT	Special Weather Statement	TSA	LeFlore	31 min
Mar 31, 5:58 AM CDT	Special Weather Statement	TSA	Latimer, Pittsburg	47 min
Mar 31, 6:35 AM CDT	Special Weather Statement	TSA	Choctaw	40 min
Mar 31, 6:42 AM CDT	Special Weather Statement	TSA	Pushmataha	63 min
Mar 31, 7:01 AM CDT	Severe Thunderstorm Warning	TSA	Choctaw	59 min
Mar 30, 9:42 PM CDT	Special Weather Statement	TSA	Carroll	33 min
Mar 30, 9:49 PM CDT	Severe Thunderstorm Warning	TSA	Benton, Carroll, Madison	56 min
Mar 30, 10:43 PM CDT	Severe Thunderstorm Warning	TSA	Carroll, Madison	32 min
Mar 31, 12:31 AM CDT	Special Weather Statement	TSA	Sebastian	29 min
Mar 31, 6:15 AM CDT	Special Weather Statement	TSA	Carroll, Madison, Washington	60 min

Nearby

Special Weather Statements in Oklahoma, 2013 Every special weather statement in 2013

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.