Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 310, NWS Tulsa, OK

May 27, 2017Creek County, Okfuskee County, Okmulgee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 27, 2017, 9:14 PM CDT for Creek County, Okfuskee County, Okmulgee County, Oklahoma. It was in force for 46 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 27, 2017, 9:14 PM CDT (02:14 UTC)
Expired: May 27, 2017, 10:00 PM CDT
In force: 46 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 2.5 in
Wind: 70.0 mph

Counties Creek County, OK, Okfuskee County, OK, Okmulgee County, OK

The radar

The Tulsa radar (KINX), 77 km from the middle of the area, began a volume at 02:15 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 27, 4:01 PM CDT	Tornado Watch	SPC	10 hr

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 2.2 hours before the alert went out and 123 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: 5174 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1475 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 8.1

Open this sounding in Storm Lab

The text

As transmitted.

330 
WUUS54 KTSA 280214
SVRTSA
OKC037-107-111-280300-
/O.NEW.KTSA.SV.W.0310.170528T0214Z-170528T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
914 PM CDT SAT MAY 27 2017

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  South central Creek County in northeastern Oklahoma...
  Northwestern Okmulgee County in northeastern Oklahoma...
  Northeastern Okfuskee County in east central Oklahoma...

* Until 1000 PM CDT

* At 914 PM CDT, a severe thunderstorm was located 4 miles northwest
  of Okfuskee, moving southeast at 15 mph.

  HAZARD...Tennis ball size hail and 70 mph wind gusts. 

  SOURCE...Radar indicated. 

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           considerable tree damage. Wind damage is also likely to 
           mobile homes, roofs, and outbuildings. 

* Locations in or near the path include...
  Okmulgee...                       Okfuskee...
  Beggs...                          Preston...
  Okmulgee State Park...            

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until midnight CDT for northeastern
and east central Oklahoma.

LAT...LON 3567 9642 3578 9624 3579 9596 3567 9584
      3551 9612
TIME...MOT...LOC 0214Z 299DEG 15KT 3565 9628 

HAIL...2.50IN
WIND...70MPH
 
$$

1 follow-up statement

451 
WWUS54 KTSA 280239
SVSTSA

Severe Weather Statement
National Weather Service Tulsa OK
939 PM CDT SAT MAY 27 2017

OKC037-107-111-280300-
/O.CON.KTSA.SV.W.0310.000000T0000Z-170528T0300Z/
Creek OK-Okmulgee OK-Okfuskee OK-
939 PM CDT SAT MAY 27 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR SOUTH CENTRAL CREEK...NORTHWESTERN OKMULGEE AND NORTHEASTERN
OKFUSKEE COUNTIES...

At 939 PM CDT, a severe thunderstorm was located over Okfuskee,
moving east at 25 mph.

HAZARD...70 mph wind gusts and half dollar size hail. 

SOURCE...Radar indicated. 

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings. 

Locations in or near the path include...
Okmulgee...                       Okfuskee...
Beggs...                          Preston...
Okmulgee State Park...            

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

A tornado watch remains in effect until midnight CDT for northeastern
and east central Oklahoma.

LAT...LON 3565 9635 3574 9616 3579 9596 3567 9584
      3551 9612
TIME...MOT...LOC 0239Z 287DEG 21KT 3558 9622 

HAIL...1.25IN
WIND...70MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 7:15 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	20 min
May 27, 7:27 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Mayes, Nowata, Rogers	63 min
May 27, 7:43 PM CDT	Special Weather Statement	TSA	Creek	47 min
May 27, 7:50 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okfuskee	55 min
May 27, 8:10 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes	50 min
May 27, 8:26 PM CDT	Tornado Warning Tornado observed	TSA	Creek, Okfuskee	49 min
May 27, 8:33 PM CDT	Severe Thunderstorm Warning	TSA	Creek	30 min
May 27, 8:39 PM CDT	Special Weather Statement	TSA	Mayes	51 min
May 27, 8:48 PM CDT	Special Weather Statement	TSA	Tulsa	42 min
May 27, 8:52 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes	53 min
May 27, 8:55 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Tulsa	35 min
May 27, 8:58 PM CDT	Tornado Warning	TSA	Okfuskee	47 min
May 27, 9:09 PM CDT	Areal Flood Advisory	TSA	Creek, Okfuskee, Okmulgee	3 hr
May 27, 9:11 PM CDT	Tornado Warning	TSA	Okfuskee	34 min
May 27, 9:16 PM CDT	Special Weather Statement	TSA	Rogers	29 min
May 27, 9:21 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Rogers, Wagoner	39 min
May 27, 9:26 PM CDT	Special Weather Statement	TSA	Tulsa	34 min
May 27, 9:39 PM CDT	Flash Flood Warning	TSA	Creek, Okfuskee	4 hr
May 27, 9:42 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Delaware, Mayes, Wagoner	63 min
May 27, 9:43 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	47 min
May 27, 9:46 PM CDT	Areal Flood Advisory	TSA	Delaware, Mayes	3 hr
May 27, 9:46 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Muskogee, Okfuskee, Okmulgee, Wagoner	44 min
May 27, 10:14 PM CDT	Special Weather Statement	TSA	Adair	46 min
May 27, 10:17 PM CDT	Special Weather Statement	TSA	Delaware	43 min
May 27, 10:23 PM CDT	Severe Thunderstorm Warning	TSA	McIntosh, Muskogee, Okmulgee	37 min
May 27, 10:25 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg, Pushmataha	35 min
May 27, 10:32 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	43 min
May 27, 10:44 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Delaware, Mayes, Nowata, Ottawa, Rogers	61 min
May 27, 10:45 PM CDT	Areal Flood Advisory	TSA	Adair	3 hr
May 27, 10:48 PM CDT	Severe Thunderstorm Warning	TSA	Haskell, McIntosh, Muskogee, Sequoyah	42 min
May 27, 11:09 PM CDT	Severe Thunderstorm Warning	TSA	Craig, Ottawa	51 min
May 27, 11:10 PM CDT	Severe Thunderstorm Warning	TSA	Pittsburg, Pushmataha	65 min
May 27, 11:19 PM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee, Haskell, LeFlore, Sequoyah	41 min
May 27, 11:40 PM CDT	Severe Thunderstorm Warning	TSA	Sequoyah	35 min
May 27, 11:53 PM CDT	Severe Thunderstorm Warning	TSA	Ottawa	37 min
May 28, 12:05 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pittsburg, Pushmataha	40 min
May 28, 12:37 AM CDT	Severe Thunderstorm Warning	TSA	Latimer, LeFlore, Pushmataha	38 min
May 28, 12:58 AM CDT	Severe Thunderstorm Warning	TSA	LeFlore	32 min
May 28, 1:15 AM CDT	Special Weather Statement	TSA	Osage	30 min
May 28, 1:27 AM CDT	Special Weather Statement	TSA	Creek	33 min
May 28, 1:34 AM CDT	Severe Thunderstorm Warning	TSA	Creek	41 min
May 28, 1:44 AM CDT	Special Weather Statement	TSA	Okfuskee	31 min
May 28, 2:01 AM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee	26 min
May 28, 2:23 AM CDT	Special Weather Statement	TSA	Choctaw	37 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Every severe thunderstorm warning in 2017

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.