Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 310, NWS Tulsa, OK

September 12, 2019Osage County, Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Sep 12, 2019, 6:06 PM CDT for Osage County, Pawnee County, Oklahoma. It was in force for 39 min. 3 reports 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: Sep 12, 2019, 6:06 PM CDT (23:06 UTC)
Expired: Sep 12, 2019, 6:45 PM CDT
In force: 39 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Osage County, OK, Pawnee County, OK

The radar

The Tulsa radar (KINX), 90 km from the middle of the area, began a volume at 23:06 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
Sep 12, 6:12 PM CDT	TSTM WND GST 60	2 N Pawnee, OK
Sep 12, 6:33 PM CDT	TSTM WND DMG	3 N Hallett, OK	LARGE TREE DOWN.
Sep 12, 6:35 PM CDT	TSTM WND DMG	Hominy, OK	TREE, MULTIPLE LARGE TREE LIMBS DOWN.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Sep 12, 2:56 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Norman, OK (KOUN), launched 12:00Z, 11.1 hours before the alert went out and 144 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: 2 J/kg
Mixed-layer CIN: -290 J/kg
Mixed-layer LCL: 1180 m above ground
0-6 km bulk shear: 1 kt
0-1 km storm-relative helicity: -43 m²/s²
0-3 km storm-relative helicity: 18 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

250 
WUUS54 KTSA 122306
SVRTSA
OKC113-117-122345-
/O.NEW.KTSA.SV.W.0310.190912T2306Z-190912T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tulsa OK
606 PM CDT Thu Sep 12 2019

The National Weather Service in Tulsa has issued a

* Severe Thunderstorm Warning for...
  Southeastern Osage County in northeastern Oklahoma...
  Pawnee County in northeastern Oklahoma...

* Until 645 PM CDT.

* At 605 PM CDT, severe thunderstorms were located along a line
  extending from 5 miles southwest of Ralston to near Skedee to 6
  miles east of Pawnee to 2 miles west of Maramec to 5 miles
  northwest of Quay, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations in or near the path include...
  Sand Springs...                   Pawnee...
  Hominy...                         Cleveland...
  Jennings...                       Westport...
  Osage...                          Hallett...
  Blackburn...                      Terlton...
  Maramec...                        Skedee...
  Walnut Creek State Park...        

LAT...LON 3647 9690 3643 9620 3634 9610 3623 9608
      3616 9613 3616 9682 3624 9682 3632 9678
      3639 9682
TIME...MOT...LOC 2305Z 278DEG 39KT 3644 9679 3639 9674 3632 9669 3625
9672 3620 9680

HAIL...<.75IN
WIND...60MPH
 
$$

Lacy

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 2:52 PM CDT	Special Weather Statement	TSA	Kay	23 min
Sep 12, 3:21 PM CDT	Special Weather Statement	TSA	Osage	39 min
Sep 12, 3:55 PM CDT	Special Weather Statement	TSA	Kay	35 min
Sep 12, 4:11 PM CDT	Special Weather Statement	TSA	Pawnee	34 min
Sep 12, 4:15 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	45 min
Sep 12, 4:53 PM CDT	Special Weather Statement	TSA	Pawnee	37 min
Sep 12, 5:13 PM CDT	Special Weather Statement	TSA	Kay	32 min
Sep 12, 5:28 PM CDT	Severe Thunderstorm Warning	TSA	Osage, Pawnee	47 min
Sep 12, 5:45 PM CDT	Areal Flood Advisory	TSA	Osage, Pawnee	4 hr
Sep 12, 6:11 PM CDT	Special Weather Statement	TSA	Creek	34 min
Sep 12, 6:29 PM CDT	Severe Thunderstorm Warning	TSA	Creek, Okmulgee, Osage, Pawnee, Tulsa	46 min
Sep 12, 6:47 PM CDT	Severe Thunderstorm Warning	TSA	Osage	26 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2019 Every severe thunderstorm warning in 2019

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.