Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 310, NWS Norman, OK

May 17, 20164 counties in Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at May 17, 2016, 1:27 AM CDT for 4 counties in Oklahoma. It was in force for 48 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: May 17, 2016, 1:27 AM CDT (06:27 UTC)
Expired: May 17, 2016, 2:15 AM CDT
In force: 48 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 0.88 in
Wind: 60.0 mph

Counties Garvin County, OK, Grady County, OK, McClain County, OK, Stephens County, OK

The radar

The Norman radar (KTLX), 75 km from the middle of the area, began a volume at 06:29 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 watch it was issued in

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

Issued	Product	Office	Lasted
May 16, 8:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.5 hours before the alert went out and 62 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: 490 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 826 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 170 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted.

572 
WUUS54 KOUN 170627
SVROUN
OKC049-051-087-137-170715-
/O.NEW.KOUN.SV.W.0310.160517T0627Z-160517T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
127 AM CDT TUE MAY 17 2016

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MCCLAIN COUNTY IN CENTRAL OKLAHOMA...
  SOUTHEASTERN GRADY COUNTY IN CENTRAL OKLAHOMA...
  NORTHEASTERN STEPHENS COUNTY IN SOUTHERN OKLAHOMA...
  GARVIN COUNTY IN SOUTHERN OKLAHOMA...

* UNTIL 215 AM CDT

* AT 127 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
  EXTENDING FROM NEAR BRADLEY TO 8 MILES NORTHEAST OF BRAY...MOVING
  EAST AT 35 MPH.

  HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  PAULS VALLEY...LINDSAY...MAYSVILLE...ELMORE CITY...WAYNE...PAOLI...ALEX...
  KATIE...FOSTER...BRADLEY...ROSEDALE...ANTIOCH...PAYNE...COX CITY...ERIN
  SPRINGS...WHITEBEAD AND PERNELL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3460 9775 3491 9778 3493 9716 3462 9718
      3462 9720 3460 9719 3460 9718 3451 9719
TIME...MOT...LOC 0627Z 275DEG 32KT 3488 9770 3471 9769 

HAIL...0.88IN
WIND...60MPH
 
$$

..SPEG.

2 follow-up statements

420 
WWUS54 KOUN 170709
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
209 AM CDT TUE MAY 17 2016

OKC051-087-137-170718-
/O.CAN.KOUN.SV.W.0310.000000T0000Z-160517T0715Z/
MCCLAIN OK-GRADY OK-STEPHENS OK-
209 AM CDT TUE MAY 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MCCLAIN...
SOUTHEASTERN GRADY AND NORTHEASTERN STEPHENS COUNTIES IS CANCELLED...

THE STORMS WHICH PROMPTED THE WARNING HAVE MOVED INTO GARVIN
COUNTY... THEREFORE THE WARNING HAS BEEN CANCELLED FOR MCCLAIN...
GRADY AND STEPHENS COUNTIES.

LAT...LON 3453 9729 3476 9740 3479 9717 3462 9718
      3462 9720 3460 9719 3460 9718 3451 9719
TIME...MOT...LOC 0708Z 280DEG 37KT 3473 9724 3456 9723 

$$

OKC049-170715-
/O.CON.KOUN.SV.W.0310.000000T0000Z-160517T0715Z/
GARVIN OK-
209 AM CDT TUE MAY 17 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 AM CDT
FOR CENTRAL GARVIN COUNTY...

AT 208 AM CDT...SEVERE THUNDERSTORMS WERE LOCATED ALONG A LINE
EXTENDING FROM NEAR PAULS VALLEY TO 7 MILES SOUTHWEST OF WYNNEWOOD...
MOVING EAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS AND NICKEL SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
PAULS VALLEY AND WHITEBEAD. 

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 58 AND 75.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3453 9729 3476 9740 3479 9717 3462 9718
      3462 9720 3460 9719 3460 9718 3451 9719
TIME...MOT...LOC 0708Z 280DEG 37KT 3473 9724 3456 9723 

HAIL...0.88IN
WIND...60MPH
 
$$

..SPEG.

846 
WWUS54 KOUN 170713
SVSOUN

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NORMAN OK
213 AM CDT TUE MAY 17 2016

OKC049-170722-
/O.EXP.KOUN.SV.W.0310.000000T0000Z-160517T0715Z/
GARVIN OK-
213 AM CDT TUE MAY 17 2016

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GARVIN COUNTY WILL
EXPIRE AT 215 AM CDT...
            
THE STORMS WHICH PROMPTED THE WARNING HAVE WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSE AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER... GUSTY
WINDS WILL REMAIN POSSIBLE WITH THESE STORMS.

LAT...LON 3453 9729 3476 9740 3479 9717 3462 9718
      3462 9720 3460 9719 3460 9718 3451 9719
TIME...MOT...LOC 0710Z 275DEG 32KT 3473 9724 3456 9723 

$$

..SPEG.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 9:14 PM CDT	Severe Thunderstorm Warning	OUN	Ellis, Roger Mills	46 min
May 16, 9:31 PM CDT	Tornado Warning	OUN	Ellis, Roger Mills	29 min
May 16, 9:57 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Greer, Roger Mills, Washita	48 min
May 16, 10:02 PM CDT	Tornado Warning	OUN	Beckham, Roger Mills	28 min
May 16, 10:29 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Custer, Greer, Roger Mills, Washita	46 min
May 16, 10:53 PM CDT	Special Weather Statement	OUN	Dewey	37 min
May 16, 10:57 PM CDT	Severe Thunderstorm Warning	OUN	Beckham, Greer, Kiowa, Washita	48 min
May 16, 11:04 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Custer, Dewey	41 min
May 16, 11:35 PM CDT	Special Weather Statement	OUN	Greer	25 min
May 16, 11:38 PM CDT	Severe Thunderstorm Warning	OUN	Blaine, Caddo, Canadian, Kingfisher	52 min
May 16, 11:43 PM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Kiowa, Tillman, Washita	47 min
May 16, 11:59 PM CDT	Special Weather Statement	OUN	Harmon	31 min
May 17, 12:37 AM CDT	Special Weather Statement	OUN	Kingfisher, Logan, Oklahoma	38 min
May 17, 12:38 AM CDT	Special Weather Statement	OUN	Grady	37 min
May 17, 12:43 AM CDT	Severe Thunderstorm Warning	OUN	Caddo, Comanche, Grady	47 min
May 17, 12:53 AM CDT	Severe Thunderstorm Warning	OUN	Cleveland, McClain, Oklahoma	52 min
May 17, 1:24 AM CDT	Severe Thunderstorm Warning	OUN	Harmon, Jackson	51 min
May 17, 1:32 AM CDT	Special Weather Statement	OUN	Cleveland, Lincoln, Pottawatomie	28 min
May 17, 1:46 AM CDT	Special Weather Statement	OUN	Tillman	29 min
May 17, 2:07 AM CDT	Severe Thunderstorm Warning	OUN	Cotton	38 min
May 17, 2:58 AM CDT	Special Weather Statement	OUN	Cotton	32 min
May 17, 4:14 AM CDT	Special Weather Statement	OUN	Kay, Noble, Payne	31 min
May 17, 7:36 AM CDT	Areal Flood Advisory	OUN	Tillman	3 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2016 Every severe thunderstorm warning 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.