Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 5, NWS Tulsa, OK

March 28, 2014McIntosh County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 28, 2014, 1:42 PM CDT for McIntosh County, Oklahoma. It was in force for 33 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: Mar 28, 2014, 1:42 PM CDT (18:42 UTC)
Expired: Mar 28, 2014, 2:15 PM CDT
In force: 33 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

County McIntosh County, OK

The radar

The Tulsa radar (KINX), 93 km from the middle of the area, began a volume at 18:46 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
Mar 28, 1:48 PM CDT	HAIL 1	4 Ne Eufaula, OK	REPORTED THROUGH LOCAL MEDIA

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 6 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 nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 6.7 hours before the alert went out and 178 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1702 m above ground
0-6 km bulk shear: 71 kt
0-1 km storm-relative helicity: 185 m²/s²
0-3 km storm-relative helicity: 326 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

478 
WUUS54 KTSA 281842
SVRTSA
OKC091-281915-
/O.NEW.KTSA.SV.W.0005.140328T1842Z-140328T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
142 PM CDT FRI MAR 28 2014

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EAST CENTRAL MCINTOSH COUNTY IN SOUTHEAST OKLAHOMA...

* UNTIL 215 PM CDT

* AT 136 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR EUFAULA...
  AND MOVING NORTHEAST AT 30 MPH.

  HAZARD...QUARTER SIZE HAIL.

  SOURCE...RADAR INDICATED.

  IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* THE STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3551 9535 3532 9534 3532 9538 3533 9540
      3530 9543 3529 9547 3530 9550 3529 9551
      3527 9558 3532 9562
TIME...MOT...LOC 1842Z 237DEG 25KT 3532 9552

HAIL...1.00IN
WIND...<50MPH

$$

2 follow-up statements

438 
WWUS54 KTSA 281850
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
150 PM CDT FRI MAR 28 2014

OKC091-281915-
/O.CON.KTSA.SV.W.0005.000000T0000Z-140328T1915Z/
MCINTOSH OK-
150 PM CDT FRI MAR 28 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR EAST CENTRAL
MCINTOSH COUNTY UNTIL 215 PM CDT...

AT 148 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES NORTHEAST
OF EUFAULA...AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL.

SOURCE...RADAR INDICATED.

IMPACT...DAMAGE TO VEHICLES IS EXPECTED.

* THE STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS OF THE
  INDICATED COUNTY...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3551 9535 3532 9535 3532 9538 3533 9540
      3530 9544 3529 9547 3530 9548 3529 9551
      3531 9553 3535 9553
TIME...MOT...LOC 1850Z 237DEG 25KT 3535 9546

HAIL...1.00IN
WIND...<50MPH

$$

510 
WWUS54 KTSA 281909
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
209 PM CDT FRI MAR 28 2014

OKC091-281918-
/O.EXP.KTSA.SV.W.0005.000000T0000Z-140328T1915Z/
MCINTOSH OK-
209 PM CDT FRI MAR 28 2014

* THE STORM WILL OTHERWISE IMPACT MAINLY RURAL AREAS OF THE INDICATED
  COUNTY...

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MCINTOSH COUNTY
WILL EXPIRE AT 215 PM CDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER...SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3551 9535 3532 9535 3532 9538 3533 9540
      3530 9544 3529 9547 3530 9548 3529 9551
      3531 9553 3535 9553
TIME...MOT...LOC 1908Z 237DEG 25KT 3542 9533

$$

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 Mar 28, 12:39 PM CDT, 1 hour 3 minutes earlier.

Area forecast discussion, Mar 28, 12:39 PM CDT, 1 hour 3 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
1239 PM CDT FRI MAR 28 2014

.AVIATION...
CONCERNING TAF SITES KTUL/KRVS/KBVO/KMLC/KXNA/KFYV/KFSM.
LARGELY MVFR CONDITIONS WILL PREVAIL FROM SE OK INTO WESTERN AR
WITH CONVECTION INCREASING IN COVERAGE THROUGH THE
AFTERNOON...BEFORE ENDING FROM WEST TO EAST BY EARLY EVENING.
THEREAFTER SKIES WILL CLEAR WITH VFR CONDITIONS PREVAILING.

&&

.PREV DISCUSSION... /ISSUED 1105 AM CDT FRI MAR 28 2014/

..UPDATE...

DISCUSSION...
CONVECTION CONTINUES TO GRADUALLY EXPAND ACROSS NORTH TX...WITH
CONTINUED DEVELOPMENT EXPECTED FURTHER NORTHWARD ACROSS SE OK /
WESTERN AR THROUGH THE AFTERNOON. ANY SFC BASED INSTABILITY...AND
ASSOCIATED HIGHER POTENTIAL FOR SVR WEATHER...WILL BE CONFINED TO
FAR SE OK. THERE DOES REMAIN A ZONE OF SUFFICIENT ELEVATED CAPE /
SHEAR FURTHER NORTH OF THE BOUNDARY TO SUPPORT SOME RISK OF
SEVERE STORMS FROM EAST CENTRAL OK INTO FAR NW AR. STORMS IN THIS
ZONE WILL POSE A RISK OF LARGE HAIL. UPDATED FORECAST WILL HAVE
ONLY MINOR ADJUSTMENTS...WITH HIGH AFTERNOON PRECIP CHANCES AND
BOUNDARY LOCATION ALL IN LINE WITH LATEST THINKING.

&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   58  36  67  42 /  50  10   0   0
FSM   67  42  67  40 /  80  40   0   0
MLC   62  40  68  42 /  70  20   0   0
BVO   57  32  67  38 /  30  10   0   0
FYV   61  34  61  32 /  70  40   0   0
BYV   59  38  60  37 /  70  40   0   0
MKO   59  37  66  40 /  60  10   0   0
MIO   57  36  62  38 /  30  10   0   0
F10   58  38  66  42 /  60  10   0   0
HHW   74  43  71  40 /  60  20   0   0

&&

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

AVIATION...07

Hazardous weather outlook, Mar 28, 1:08 PM CDT, 34 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TULSA OK
108 PM CDT FRI MAR 28 2014

ARZ001-002-010-011-019-020-029-OKZ049-053>076-291000-
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-
108 PM CDT FRI MAR 28 2014

...LIMITED SEVERE WEATHER POTENTIAL CONTINUES INTO THE EVENING...

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SEVERE THUNDERSTORM.
	RISK...LIMITED.
	AREA...GENERALLY ALONG AND EAST OF A LINE FROM EUFAULA
               OKLAHOMA TO FAYETTEVILLE ARKANSAS.
	ONSET...AFTERNOON.

HEAVY RAIN.
	RISK...LIMITED.
	AREA...FAR EASTERN OKLAHOMA AND WESTERN ARKANSAS.
	ONSET...AFTERNOON.

FIRE WEATHER DANGER.
	RISK...LIMITED.
	AREA...ALONG AND NORTHWEST OF INTERSTATE 44.
	ONSET...AFTERNOON.

DISCUSSION...
THUNDERSTORMS WILL INCREASE IN COVERAGE THROUGH THE AFTERNOON
HOURS...PRIMARILY ACROSS SOUTHEAST OKLAHOMA AND WESTERN ARKANSAS.
A LIMITED RISK OF SEVERE WEATHER CONTINUES THROUGH THE EARLY
EVENING HOURS...WITH LARGE HAIL THE PRIMARY HAZARD.  THE EXCEPTION
WILL BE EXTREME SOUTHEAST OKLAHOMA WHERE DAMAGING WINDS WILL
ALSO BE POSSIBLE WITH ANY SEVERE STORMS.  AREAS OF LOCALLY HEAVY
RAIN ARE POSSIBLE THROUGH THE EARLY EVENING HOURS BEFORE THE
PRECIPITATION ENDS FROM WEST TO EAST.
ADDITIONALLY...GUSTY NORTH WINDS ACROSS NORTHEAST OKLAHOMA
WILL ALLOW FOR A PERIOD OF HIGHER FIRE SPREAD POTENTIAL THIS AFTERNOON.
WINDS WILL SUBSIDE AFTER SUNSET.

SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
LOCAL SPOTTER ACTIVATION MAY BE NEEDED ACROSS SOUTHEAST OKLAHOMA
AND WESTERN ARKANSAS.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.
SATURDAY...NO HAZARDS.
SUNDAY AND MONDAY...THUNDERSTORM POTENTIAL...VERY HIGH FIRE WEATHER
         POTENTIAL...HIGH WIND POTENTIAL.
TUESDAY...THUNDERSTORM POTENTIAL.
WEDNESDAY...THUNDERSTORM POTENTIAL...HIGH WIND POTENTIAL...HEAVY RAIN POTENTIAL.
THURSDAY...THUNDERSTORM POTENTIAL.

EXTENDED DISCUSSION...
WILDFIRE POTENTIAL WILL INCREASE NOTICEABLY ON SUNDAY AS GUSTY SOUTH
WINDS AND LOW HUMIDITIES RETURN.  A SLIGHT CHANCE OF THUNDERSTORMS
WILL EXIST SUNDAY NIGHT THROUGH MONDAY...OTHERWISE GUSTY WINDS AND
HEIGHTENED FIRE WEATHER CONCERNS WILL CONTINUE.  LOW THUNDERSTORM
CHANCES WILL CONTINUE ON TUESDAY...WITH MORE WIDESPREAD THUNDERSTORMS
EXPECTED WEDNESDAY INTO THURSDAY.  THE WEATHER PATTERN FOR MID TO LATE
NEXT WEEK CONTINUES TO APPEAR SUPPORTIVE OF SEVERE WEATHER.

EMERGENCY MANAGEMENT PLANNING STATEMENT...
THERE WILL BE AN INCREASE IN MEDIA ATTENTION REGARDING THE
SEVERE WEATHER POTENTIAL FOR MID TO LATE NEXT WEEK.  UNDERSTAND
THIS POTENTIAL DOES EXIST...HOWEVER DETAILS AND POTENTIAL
IMPACTS REMAIN UNCERTAIN AND ANY STATEMENTS OTHERWISE SHOULD
BE MET WITH SKEPTICISM.

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

In the hours before

Local storm report, Mar 28, 11:15 AM CDT, 2 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
1115 AM CDT FRI MAR 28 2014

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

1015 PM     HAIL             TAMAHA                  35.40N 94.98W
03/27/2014  E0.75 INCH       HASKELL            OK   PUBLIC

1105 PM     HAIL             4 WNW BRADEN            35.31N 94.57W
03/27/2014  E0.75 INCH       LE FLORE           OK   PUBLIC

1200 AM     HAIL             MIDLAND                 35.09N 94.35W
03/28/2014  E0.75 INCH       SEBASTIAN          AR   CO-OP OBSERVER

&&

LACY

Local storm report, Mar 28, 11:16 AM CDT, 2 hours 26 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE TULSA OK
1116 AM CDT FRI MAR 28 2014

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

0950 PM     HAIL             2 NE FAYETTEVILLE       36.08N 94.13W
03/27/2014  E1.00 INCH       WASHINGTON         AR   BROADCAST MEDIA

            MOSTLY PEA TO NICKEL SIZE

1015 PM     HAIL             TAMAHA                  35.40N 94.98W
03/27/2014  E0.75 INCH       HASKELL            OK   PUBLIC

1027 PM     HAIL             ENTERPRISE              35.23N 95.38W
03/27/2014  E0.75 INCH       HASKELL            OK   FIRE DEPT/RESCUE

1105 PM     HAIL             4 WNW BRADEN            35.31N 94.57W
03/27/2014  E0.75 INCH       LE FLORE           OK   PUBLIC

1131 PM     HAIL             4 SW GREENWOOD          35.17N 94.31W
03/27/2014  E0.75 INCH       SEBASTIAN          AR   TRAINED SPOTTER

1200 AM     HAIL             MIDLAND                 35.09N 94.35W
03/28/2014  E0.75 INCH       SEBASTIAN          AR   CO-OP OBSERVER

&&

LACY

Special weather statement, Mar 28, 1:37 PM CDT, 5 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
137 PM CDT FRI MAR 28 2014

OKZ070-071-281915-
MCINTOSH OK-MUSKOGEE OK-
137 PM CDT FRI MAR 28 2014

...SIGNIFICANT WEATHER ADVISORY...

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A
SIGNIFICANT WEATHER ADVISORY EFFECTIVE UNTIL 215 PM CDT
FOR THE FOLLOWING COUNTIES...

IN SOUTHEAST OKLAHOMA
     EASTERN MCINTOSH

IN EAST CENTRAL OKLAHOMA
     SOUTHERN MUSKOGEE

AT 137 PM CDT...A STRONG THUNDERSTORM WAS LOCATED OVER EUFAULA...
MOVING NORTHEAST AT 25 MPH. SOME LOCATIONS THAT WILL BE AFFECTED BY
THIS STORM INCLUDE...EUFAULA...PORUM AND WARNER.

THIS STORM WILL BE CAPABLE OF PRODUCING PENNY SIZE HAIL.

LAT...LON 3560 9531 3540 9514 3531 9538 3533 9540
      3529 9545 3530 9550 3528 9552 3526 9552
      3523 9562 3525 9560 3524 9563 3529 9568
TIME...MOT...LOC 1837Z 235DEG 23KT 3531 9556

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 9:27 PM CDT	Special Weather Statement	TSA	Adair	48 min
Mar 27, 9:52 PM CDT	Special Weather Statement	TSA	Sequoyah	23 min
Mar 27, 10:06 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	39 min
Mar 27, 10:14 PM CDT	Special Weather Statement	TSA	Haskell	46 min
Mar 27, 10:21 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, LeFlore, Sequoyah	39 min
Mar 27, 10:54 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore, Sequoyah	51 min
Mar 27, 11:03 PM CDT	Special Weather Statement	TSA	Haskell	42 min
Mar 28, 2:34 AM CDT	Special Weather Statement	TSA	LeFlore	26 min
Mar 28, 3:00 AM CDT	Special Weather Statement	TSA	LeFlore	30 min
Mar 28, 1:37 PM CDT	Special Weather Statement	TSA	Muskogee	38 min
Mar 28, 1:47 PM CDT	Special Weather Statement	TSA	Cherokee	28 min
Mar 28, 2:28 PM CDT	Special Weather Statement	TSA	Wagoner	32 min
Mar 28, 2:43 PM CDT	Special Weather Statement	TSA	Sequoyah	47 min
Mar 28, 2:54 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Sequoyah	51 min
Mar 28, 3:04 PM CDT	Special Weather Statement	TSA	Cherokee	26 min
Mar 28, 3:30 PM CDT	Special Weather Statement	TSA	Cherokee	30 min
Mar 28, 3:34 PM CDT	Special Weather Statement	TSA	Okfuskee	26 min
Mar 28, 3:49 PM CDT	Special Weather Statement	TSA	Adair	26 min
Mar 28, 4:04 PM CDT	Severe Thunderstorm Warning	TSA	Adair	41 min
Mar 28, 4:13 PM CDT	Special Weather Statement	TSA	Okmulgee	32 min
Mar 28, 4:26 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee	49 min
Mar 28, 5:04 PM CDT	Severe Thunderstorm Warning	TSA	Cherokee, McIntosh, Muskogee, Sequoyah	41 min
Mar 28, 5:39 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Sequoyah	51 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2014 Every severe thunderstorm warning in 2014

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.