Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 150, NWS Tulsa, OK

July 19, 2012Craig County, Nowata County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Jul 19, 2012, 4:40 PM CDT for Craig County, Nowata County, Oklahoma. It was in force for 21 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: Jul 19, 2012, 4:40 PM CDT (21:40 UTC)
Expired: Jul 19, 2012, 5:01 PM CDT
In force: 21 min
Issued by: NWS Tulsa, OK
Area: Storm-based polygon

Counties Craig County, OK, Nowata County, OK

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.7 hours before the alert went out and 149 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: 706 J/kg
Mixed-layer CIN: -140 J/kg
Mixed-layer LCL: 1592 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -102 m²/s²
0-3 km storm-relative helicity: 7 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.

264 
WUUS54 KTSA 192140
SVRTSA
OKC035-105-192215-
/O.NEW.KTSA.SV.W.0150.120719T2140Z-120719T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
440 PM CDT THU JUL 19 2012

THE NATIONAL WEATHER SERVICE IN TULSA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN CRAIG COUNTY IN NORTHEAST OKLAHOMA
  EASTERN NOWATA COUNTY IN NORTHEAST OKLAHOMA

* UNTIL 515 PM CDT

* AT 435 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED OVER CENTRAL
  NOWATA COUNTY...MOVING SOUTHEAST AT 10 MPH.

  STORM HAZARDS INCLUDE...
  WIND GUSTS TO 65 MPH...

* THIS STORM WILL OTHERWISE REMAIN OVER MAINLY RURAL AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE OUTSIDE SHOULD MOVE TO A SAFE SHELTER...PREFERABLY INSIDE A
STRONG BUILDING. STAY AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.

SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS. MOBILE HOMES AND HIGH PROFILE VEHICLES ARE ESPECIALLY 
SUSCEPTIBLE TO HIGH WINDS AND MAY BE OVERTURNED.

&&

LAT...LON 3678 9534 3666 9550 3682 9567 3691 9551
TIME...MOT...LOC 2140Z 313DEG 10KT 3682 9555

$$

1 follow-up statement

185 
WWUS54 KTSA 192201
SVSTSA

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
501 PM CDT THU JUL 19 2012

OKC035-105-192212-
/O.CAN.KTSA.SV.W.0150.000000T0000Z-120719T2215Z/
CRAIG OK-NOWATA OK-
501 PM CDT THU JUL 19 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN NOWATA AND WESTERN
CRAIG COUNTIES IS CANCELLED...

THE THUNDERSTORM HAS WEAKENED BELOW SEVERE LIMITS...THEREFORE THE
SEVERE THUNDERSTORM WARNING HAS BEEN CANCELLED.

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

LAT...LON 3678 9534 3666 9550 3682 9567 3691 9551
TIME...MOT...LOC 2202Z 313DEG 10KT 3678 9549

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 4:02 AM CDT	Excessive Heat Warning	TSA	Tulsa, Washington	29 hr
Jul 19, 4:02 AM CDT	Heat Advisory	TSA	Adair, Cherokee, Choctaw, Craig, Creek, Delaware and 16 more	4 days
Jul 19, 4:28 PM CDT	Special Weather Statement	TSA	Nowata, Washington	32 min
Jul 19, 5:04 PM CDT	Special Weather Statement	TSA	Washington	41 min
Jul 19, 5:45 PM CDT	Special Weather Statement	TSA	Craig, Nowata, Pawnee, Rogers, Washington	30 min
Jul 19, 6:15 PM CDT	Special Weather Statement	TSA	Mayes, Pawnee, Rogers, Tulsa	30 min
Jul 19, 6:39 PM CDT	Special Weather Statement	TSA	Wagoner	36 min
Jul 19, 6:45 PM CDT	Special Weather Statement	TSA	Rogers, Tulsa	30 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2012 Every severe thunderstorm warning in 2012

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.