Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 55, NWS Tulsa, OK

April 18, 20135 counties in Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 18, 2013, 3:11 AM CDT for 5 counties in Oklahoma. It was in force for 64 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 18, 2013, 3:11 AM CDT (08:11 UTC)
Expired: Apr 18, 2013, 4:15 AM CDT
In force: 64 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Cherokee County, OK, McIntosh County, OK, Muskogee County, OK, Okmulgee County, OK, Wagoner County, OK

The radar

The Tulsa radar (KINX), 64 km from the middle of the area, began a volume at 08:13 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.

What was reported inside it

Time	Report	Where	Remark
Apr 18, 4:05 AM CDT	TSTM WND DMG	9 E Onapa, OK	ROOF DAMAGE TO A HOUSE.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 54 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 17, 10:47 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 8.2 hours before the alert went out and 201 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: 1 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 457 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 327 m²/s²
0-3 km storm-relative helicity: 520 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

820 
WUUS54 KTSA 180811
SVRTSA
OKC021-091-101-111-145-180915-
/O.NEW.KTSA.SV.W.0055.130418T0811Z-130418T0915Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
311 AM CDT THU APR 18 2013

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CHEROKEE COUNTY IN EAST CENTRAL OKLAHOMA...
  MUSKOGEE COUNTY IN EAST CENTRAL OKLAHOMA...
  SOUTHEASTERN OKMULGEE COUNTY IN NORTHEAST OKLAHOMA...
  SOUTHERN WAGONER COUNTY IN NORTHEAST OKLAHOMA...
  NORTHERN MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA...

* UNTIL 415 AM CDT

* AT 308 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM 4 MILES NORTHWEST OF BOYNTON TO 9 MILES SOUTH OF
  HOFFMAN...MOVING EAST AT 35 MPH.

  STORM HAZARDS INCLUDE...
  QUARTER SIZE HAIL...
  WIND GUSTS TO 60 MPH...

* SOME LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE...
  HASKELL...BOYNTON...COUNCIL HILL...TAFT...STIDHAM...PORTER...
  TULLAHASSEE...LAKE EUFAULA STATE PARK...OKTAHA...MUSKOGEE...
  RENTIESVILLE...CHECOTAH...OKAY...FORT GIBSON...SEQUOYAH STATE
  PARK...KEEFETON AND WARNER.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 242 AND 276.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. PEOPLE OUTDOORS
SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3588 9570 3594 9505 3538 9536 3526 9599
      3529 9599
TIME...MOT...LOC 0811Z 253DEG 28KT 3571 9566 3536 9586

$$

3 follow-up statements

196 
WWUS54 KTSA 180830
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
330 AM CDT THU APR 18 2013

OKC021-091-101-111-145-180915-
/O.CON.KTSA.SV.W.0055.000000T0000Z-130418T0915Z/
CHEROKEE OK-MCINTOSH OK-MUSKOGEE OK-OKMULGEE OK-WAGONER OK-
330 AM CDT THU APR 18 2013

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR
SOUTHEASTERN WAGONER...EASTERN OKMULGEE...MUSKOGEE...NORTHEASTERN
MCINTOSH AND WESTERN CHEROKEE COUNTIES...

AT 326 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM WAINWRIGHT TO STIDHAM...MOVING EAST AT 30 MPH.

STORM HAZARDS INCLUDE...
QUARTER SIZE HAIL...
WIND GUSTS TO 60 MPH...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...TAFT...
LAKE EUFAULA STATE PARK...OKTAHA...SUMMIT...CHECOTAH...
RENTIESVILLE...ONAPA...MUSKOGEE...KEEFETON...FORT GIBSON AND WARNER.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 250 AND 276.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. PEOPLE OUTDOORS
SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3536 9581 3571 9571 3594 9505 3538 9536
TIME...MOT...LOC 0830Z 253DEG 28KT 3566 9553 3538 9568

$$

474 
WWUS54 KTSA 180841
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
341 AM CDT THU APR 18 2013

OKC111-180851-
/O.CAN.KTSA.SV.W.0055.000000T0000Z-130418T0915Z/
OKMULGEE OK-
341 AM CDT THU APR 18 2013

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OKMULGEE COUNTY IS
CANCELLED...

LAT...LON 3537 9574 3576 9558 3594 9505 3538 9536
TIME...MOT...LOC 0841Z 253DEG 28KT 3568 9543 3540 9558

$$

OKC021-091-101-145-180915-
/O.CON.KTSA.SV.W.0055.000000T0000Z-130418T0915Z/
CHEROKEE OK-MCINTOSH OK-MUSKOGEE OK-WAGONER OK-
341 AM CDT THU APR 18 2013

...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 AM CDT FOR
SOUTHEASTERN WAGONER...MUSKOGEE...NORTHEASTERN MCINTOSH AND WESTERN
CHEROKEE COUNTIES...

AT 337 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM SUMMIT TO LAKE EUFAULA STATE PARK...MOVING EAST AT 30
MPH.

STORM HAZARDS INCLUDE...
WIND GUSTS TO 60 MPH...
MINOR FLOODING IN AREAS OF POOR DRAINAGE...

SOME LOCATIONS IN OR NEAR THE PATH OF THIS STORM INCLUDE...SUMMIT...
CHECOTAH...RENTIESVILLE...ONAPA...MUSKOGEE...KEEFETON...FORT GIBSON
AND WARNER.

THIS INCLUDES INTERSTATE 40 BETWEEN MILE MARKERS 255 AND 276.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH IS IN EFFECT FOR THE WARNED AREA. PEOPLE OUTDOORS
SHOULD MOVE INSIDE A STURDY BUILDING. STAY AWAY FROM WINDOWS AND
DOORS UNTIL THE STORM HAS PASSED.

&&

LAT...LON 3537 9574 3576 9558 3594 9505 3538 9536
TIME...MOT...LOC 0841Z 253DEG 28KT 3568 9543 3540 9558

$$

675 
WWUS54 KTSA 180914
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
414 AM CDT THU APR 18 2013

OKC021-091-101-145-180924-
/O.EXP.KTSA.SV.W.0055.000000T0000Z-130418T0915Z/
CHEROKEE OK-MCINTOSH OK-MUSKOGEE OK-WAGONER OK-
414 AM CDT THU APR 18 2013

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WAGONER...
MUSKOGEE...NORTHEASTERN MCINTOSH AND WESTERN CHEROKEE COUNTIES
EXPIRES AT 415 AM CDT...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING WILL BE ALLOWED TO EXPIRE.

GUSTY WINDS...SMALL HAIL AND HEAVY RAIN WILL STILL BE POSSIBLE WITH
THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 CDT.

LAT...LON 3537 9574 3576 9558 3594 9505 3538 9536
TIME...MOT...LOC 0914Z 253DEG 28KT 3575 9513 3547 9528

$$

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 18, 12:45 AM CDT, 2 hours 26 minutes earlier.

Area forecast discussion, Apr 18, 12:45 AM CDT, 2 hours 26 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1245 AM CDT THU APR 18 2013

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
THUNDERSTORMS / COLD FRONTAL BOUNDARY PUSHING THROUGH
TAF AREA OVERNIGHT AND EARLY THURSDAY MORNING. MVFR SOME
IFR CONDITIONS. IMPROVING FROM WEST-EAST 15Z-21Z TO VFR.

&&

.PREV DISCUSSION... /ISSUED 946 PM CDT WED APR 17 2013/

..UPDATE...

DISCUSSION...
CLUSTER OF STRONG THUNDERSTORMS CURRENTLY MOVING INTO NORTHEAST
OKLAHOMA THIS EVENING WITH COLD FRONT LOCATED NEAR A LENAPAH...MANFORD
LINE. SEVERE WEATHER THREAT WILL REMAIN OVERNIGHT ALONG AND SOUTH
OF FRONT WITH THE POTENTIAL FOR DAMAGING WINDS/LARGE HAIL. LOW
LEVEL WIND FIELDS REMAIN STRONG AND WILL LIKELY CONTINUE AS UPPER
JET STREAK SPREADS INTO NORTH TEXAS...THEREFORE A LIMITED TORNADO
THREAT WILL REMAIN ALONG/SOUTH OF BOUNDARY OVERNIGHT. VERY HEAVY
RAINFALL LIKELY IN THE STRONGER CELLS AND ANY TRAINING OF
THUNDERSTORMS OVER NORTHEAST OKLAHOMA COULD CREATE LOCALIZED
FLOODING. UPDATE OUT SHORTLY FOR SHORT TERM TRENDS. NO OTHER
SIGNIFICANT CHANGES.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   33  58  39  67 /  10   0   0   0
FSM   36  58  37  65 /  10   0   0   0
MLC   35  59  36  66 /  10   0   0   0
BVO   31  59  35  66 /  10   0   0   0
FYV   33  53  31  61 /  10   0   0   0
BYV   34  53  34  61 /  10  10   0   0
MKO   33  58  37  66 /  10   0   0   0
MIO   32  55  35  64 /  10   0   0   0
F10   33  58  37  66 /  10   0   0   0
HHW   36  59  36  67 /  10   0   0   0

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...FLASH FLOOD WATCH UNTIL 7 AM THURSDAY FOR OKZ054-OKZ055-OKZ056-
     OKZ057-OKZ058-OKZ059-OKZ060-OKZ061-OKZ062-OKZ063-OKZ064-
     OKZ065-OKZ066-OKZ067.

AR...NONE.
&&

SHORT TERM...05
LONG TERM....05
AVIATION...21

Hazardous weather outlook, Apr 17, 8:37 PM CDT, 6 hours 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
837 PM CDT WED APR 17 2013

ARZ001-002-010-011-019-020-029-OKZ049-053>076-181000-
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-
837 PM CDT WED APR 17 2013

...SEVERE WEATHER LIKELY OVERNIGHT WITH THE THREAT FOR HEAVY
   RAINFALL...

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

.DAY ONE...TONIGHT.

TORNADO.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
	ONSET...ONGOING.

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

FLASH FLOOD.
	RISK...ELEVATED.
	AREA...NORTHEAST OKLAHOMA.
	ONSET...OVERNIGHT.

HEAVY RAIN.
	RISK...SIGNIFICANT.
	AREA...NORTHEAST OKLAHOMA.
	ONSET...OVERNIGHT.

SIGNIFICANT WINDS.
	RISK...LIMITED.
	AREA...EASTERN OKLAHOMA...NORTHWEST AND WEST CENTRAL ARKANSAS.
	ONSET...ONGOING.

DISCUSSION...
CLUSTERS OF STRONG TO SEVERE THUNDERSTORMS WILL MOVE INTO PORTIONS
OF NORTHEAST OKLAHOMA THIS EVENING.  STORMS WILL SPREAD INTO
SOUTHEAST OKLAHOMA AFTER MIDNIGHT AND INTO NORTHWEST ARKANSAS LATE
TONIGHT.  LARGE HAIL AND DAMAGING WINDS WILL BE THE PRIMARY THREAT...
ALTHOUGH A FEW ISOLATED TORNADOES WILL BE POSSIBLE AS STRONG WIND
FIELDS REMAIN OVERNIGHT.

ADDITIONALLY...SOME LOCATIONS ACROSS ACROSS NORTHEAST OKLAHOMA MAY
SEE 2 TO 3 INCHES OF RAINFALL...POTENTIALLY LEADING TO LOCALIZED
FLASH FLOODING.

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

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.
THURSDAY...SEVERE THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL...
HEAVY RAIN POTENTIAL.
FRIDAY THROUGH SUNDAY...NO HAZARDS.
MONDAY...THUNDERSTORM POTENTIAL. TUESDAY...THUNDERSTORM
POTENTIAL...HIGH WIND POTENTIAL.

EXTENDED DISCUSSION...
THE SEVERE STORM RISK... AND OVERALL RAIN CHANCES WILL DECREASE
THURSDAY AS THE FRONT BEGINS TO ACCELERATE AND MOVE FARTHER EAST.
MUCH COLDER AIR WILL SETTLE ACROSS THE REGION BEHIND THE
FRONT... WITH MUCH OF NORTHEAST OKLAHOMA AND NORTHWEST ARKANSAS
LIKELY TO EXPERIENCE TEMPERATURES NEAR FREEZING FRIDAY MORNING.
NORTHWEST ARKANSAS AND LOW LYING VALLEY LOCATIONS OF NORTHEAST
OKLAHOMA WILL BE AT RISK FOR FREEZING TEMPERATURES ONCE AGAIN
SATURDAY MORNING. STORM CHANCES WILL RETURN EARLY NEXT WEEK AS
ANOTHER STRONG FRONT APPROACHES.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
THOSE WITH HORTICULTURAL INTERESTS SHOULD MONITOR TEMPERATURE
FORECASTS FOR FREEZE POTENTIAL FOR FRIDAY AND SATURDAY MORNING.

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

In the hours before

Local storm report, Apr 18, 12:00 AM CDT, 3 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1200 AM CDT THU APR 18 2013

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

1155 PM     HAIL             10 S TULSA              35.99N 95.92W
04/17/2013  E1.00 INCH       TULSA              OK   AMATEUR RADIO

            151 ST AND LEWIS AREA IN TULSA

&&

SFP

Local storm report, Apr 18, 12:37 AM CDT, 2 hours 34 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1237 AM CDT THU APR 18 2013

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

1205 AM     TSTM WND DMG     BROKEN ARROW            36.05N 95.79W
04/18/2013                   TULSA              OK   TRAINED SPOTTER

            4 INCH DIAMETER LIMBS ON SOUTH 145TH.

&&

Local storm report, Apr 18, 1:09 AM CDT, 2 hours 2 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
109 AM CDT THU APR 18 2013

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

1205 AM     TSTM WND DMG     6 SW BROKEN ARROW       35.99N 95.87W
04/18/2013                   TULSA              OK   AMATEUR RADIO

            ROOF DAMAGE TO A HOME...TREE DAMAGE AND A BARN DAMAGED.
            THIS DAMAGE WAS NEAR A RADAR SIGNATURE SUGGESTING A
            TORNADO. AN NWS TEAM WILL INVESTIGATE THE AREA TOMORROW.

&&
THIS WAS NEAR 131ST STREET SOUTH AND 117TH STREET IN BROKEN ARROW.

SFP

Local storm report, Apr 18, 1:22 AM CDT, 1 hour 49 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
122 AM CDT THU APR 18 2013

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

0110 AM     TORNADO          SPAVINAW                36.39N 95.05W
04/18/2013                   MAYES              OK   EMERGENCY MNGR

            EMERGENCY MANAGER REPORTS TORNADO TOUCHDOWN IN
            SPAVINAW...NO DETAILS AT THIS TIME.

&&

SFP

Local storm report, Apr 18, 2:41 AM CDT, 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
241 AM CDT THU APR 18 2013

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

0239 AM     FLASH FLOOD      BIXBY                   35.94N 95.88W
04/18/2013                   TULSA              OK   TRAINED SPOTTER

            FLOODING REPORTED NEAR 111TH STREET SOUTH AND MINGO

&&

MAT

Special weather statement, Apr 18, 2:46 AM CDT, 25 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
246 AM CDT THU APR 18 2013

OKZ060-062-065>068-070-071-180830-
CHEROKEE OK-MAYES OK-MCINTOSH OK-MUSKOGEE OK-OKFUSKEE OK-OKMULGEE
OK-TULSA OK-WAGONER OK-
246 AM CDT THU APR 18 2013

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 330 AM CDT
FOR THE FOLLOWING COUNTIES...

IN EAST CENTRAL OKLAHOMA
     NORTHWESTERN CHEROKEE...MUSKOGEE AND SOUTHEASTERN OKFUSKEE

IN SOUTHEAST OKLAHOMA
     NORTHERN MCINTOSH

IN NORTHEAST OKLAHOMA
     SOUTHERN MAYES...EASTERN OKMULGEE...SOUTHEASTERN TULSA AND
     WAGONER

AT 246 AM CDT...STRONG THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM 4 MILES EAST OF HECTORVILLE TO MORRIS TO
BRYANT...MOVING NORTHEAST AT 55 MPH.

THESE STORMS WILL BE CAPABLE OF PRODUCING 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 3559 9600 3586 9600 3620 9511 3587 9513
      3539 9537 3528 9613 3529 9623
TIME...MOT...LOC 0746Z 243DEG 47KT 3588 9579 3563 9579
          3541 9597

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 7:22 PM CDT	Special Weather Statement	TSA	Delaware	53 min
Apr 17, 8:42 PM CDT	Special Weather Statement	TSA	Delaware	33 min
Apr 17, 9:02 PM CDT	Special Weather Statement	TSA	Pawnee	43 min
Apr 17, 9:38 PM CDT	Special Weather Statement	TSA	Creek, Osage, Washington	52 min
Apr 17, 10:09 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa	51 min
Apr 17, 10:35 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Osage, Pawnee, Rogers, Tulsa, Washington	55 min
Apr 17, 10:46 PM CDT	Special Weather Statement	TSA	Craig, Nowata	44 min
Apr 17, 11:00 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee, Okmulgee, Tulsa	60 min
Apr 17, 11:12 PM CDT	Tornado Warning	TSA	Creek, Okmulgee	33 min
Apr 17, 11:44 PM CDT	Tornado Warning	TSA	Creek, Okmulgee, Rogers, Tulsa, Wagoner	31 min
Apr 17, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Muskogee, Okmulgee, Rogers, Tulsa, Wagoner	52 min
Apr 18, 12:17 AM CDT	Flash Flood Warning	TSA	Creek, Muskogee, Okfuskee, Okmulgee, Rogers, Tulsa and 1 more	4 hr
Apr 18, 12:17 AM CDT	Tornado Warning	TSA	Mayes, Rogers, Tulsa, Wagoner	28 min
Apr 18, 12:38 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Muskogee, Okmulgee and 2 more	67 min
Apr 18, 12:46 AM CDT	Tornado Warning	TSA	Delaware, Mayes	29 min
Apr 18, 1:00 AM CDT	Flash Flood Warning	TSA	Cherokee, Craig, Delaware, Mayes, Muskogee, Ottawa and 2 more	4 hr
Apr 18, 1:16 AM CDT	Tornado Warning	TSA	Delaware, Mayes, Ottawa	44 min
Apr 18, 1:53 AM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware	37 min
Apr 18, 2:19 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Delaware	56 min
Apr 18, 2:39 AM CDT	Tornado Warning	TSA	Adair, Cherokee, Delaware	51 min
Apr 18, 2:46 AM CDT	Special Weather Statement	TSA	McIntosh, Muskogee, Okmulgee, Wagoner	44 min
Apr 18, 3:16 AM CDT	Flash Flood Warning	TSA	Adair, Cherokee, Delaware, Ottawa	4 hr
Apr 18, 4:28 AM CDT	Areal Flood Warning	TSA	Creek, Muskogee, Okfuskee, Okmulgee, Tulsa, Wagoner	14 hr
Apr 18, 4:55 AM CDT	Areal Flood Warning	TSA	Cherokee, Delaware, Mayes, Muskogee, Rogers, Wagoner	14 hr
Apr 18, 7:15 AM CDT	Areal Flood Warning	TSA	Adair, Cherokee, Delaware	12 hr
Apr 18, 8:23 AM CDT	River Flood Warning	TSA	Cherokee, Delaware	8 hr
Apr 18, 8:37 AM CDT	River Flood Warning	TSA	Okmulgee	4 days
Apr 18, 9:08 AM CDT	River Flood Warning	TSA	Cherokee	48 hr
Apr 18, 11:58 AM CDT	River Flood Warning	TSA	Adair	30 hr
Apr 18, 3:30 PM CDT	Freeze Warning	TSA	Craig, Creek, Nowata, Pawnee, Rogers, Tulsa and 1 more	17 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2013 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.