Plains Tornado Outbreak 4/14-15

#181 Postby **brunota2003** » Fri Apr 13, 2012 6:25 pm

Look at the air being pulled in and the clear rotation!

#182 Postby **MGC** » Fri Apr 13, 2012 6:30 pm

Clear hook echo with that cell. Any reports from chasers?.....MGC

#183 Postby **brunota2003** » Fri Apr 13, 2012 6:31 pm

NWS Norman ‏ @NWSNorman
Strong tornado signature embedded within a large circulation just NE of Altus. Don't go looking for the tornado - you won't see it! #okwx

#184 Postby **Dave** » Fri Apr 13, 2012 6:33 pm

OUN: 4 (miles) E of Warren..extremely strong rotation

Bunkertor · #185 Postby **Bunkertor** » Fri Apr 13, 2012 6:37 pm

MGC wrote:Clear hook echo with that cell. Any reports from chasers?.....MGC

Stormchasers Dave Drummond & Jess Risley are going after it.

#186 Postby **Dave** » Fri Apr 13, 2012 6:42 pm

(7:41 PM) nwsbot: OUN: Unverified/Non-NWS Report -- from Steve Worthington (via spotternetwork.org) @ 06:38 PM CDT -- (S) Other -- -- Spotter is 0 miles NE of Blair, OK (Jackson county) [34.783/-99.329] -- Tornado apparently went through town. Lots of damage throughout town. Large 5th camping trailer flipped over, power lines down, wooden shed destroyed in middle of roads. Lots of roof damage to multiple houses.

#187 Postby **brunota2003** » Fri Apr 13, 2012 6:42 pm

Rotation on radar is broadening and weakening.

Cyclenall · #188 Postby **Cyclenall** » Fri Apr 13, 2012 6:44 pm

Bunkertor wrote:
Cyclenall wrote: A Canadian regional model run earlier today showed a ridiculous amount of supercell initiation for tomorrow starting at 18z!!!!!!!! It continued for a long time after that

Can you provide a link to this ?

I can try and get it but I don't know it off the top.

brunota2003 wrote:Look at the air being pulled in and the clear rotation!

What mode on GRLevel3 is that?

#189 Postby **Dave** » Fri Apr 13, 2012 6:48 pm

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE NORMAN OK
646 PM CDT FRI APR 13 2012

THE NATIONAL WEATHER SERVICE IN NORMAN HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
NORTHWESTERN COMANCHE COUNTY IN SOUTHWESTERN OKLAHOMA...
EXTREME SOUTHEASTERN GREER COUNTY IN SOUTHWESTERN OKLAHOMA...
EXTREME NORTHEASTERN JACKSON COUNTY IN SOUTHWESTERN OKLAHOMA...
KIOWA COUNTY IN SOUTHWESTERN OKLAHOMA...
EXTREME SOUTHEASTERN WASHITA COUNTY IN WEST CENTRAL OKLAHOMA...

* UNTIL 745 PM CDT

* AT 644 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED
A SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DAMAGING HAIL UP
TO GOLF BALL SIZE AND DESTRUCTIVE WINDS IN EXCESS OF 75 MPH. THIS
STORM WAS LOCATED NEAR WARREN...MOVING EAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
MOUNTAIN VIEW...ROOSEVELT...GOTEBO...COOPERTON...
WARREN AND TOM STEED RESERVOIR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH NO WARNING. GET
TO A STORM SHELTER OR STURDY BUILDING IF A TORNADO APPROACHES.

MOVE INSIDE A STURDY BUILDING UNTIL THE STORM HAS PASSED.

#190 Postby **brunota2003** » Fri Apr 13, 2012 6:49 pm

SRV (Storm Relative Velocity)...and it is on Grlevel2 Analyst Edition...but 3 should have it too.

Bunkertor · #191 Postby **Bunkertor** » Fri Apr 13, 2012 6:50 pm

@ Jesse Risley : In case that is a tornado in front of the lens -- holy cowseph :eek:

Edit : False alert

#192 Postby **Dave** » Fri Apr 13, 2012 6:57 pm

7:55 PM) County sheriff reports damage to mobile homes 206 e of blair Golfball hail and rotation 3 south of roosevelt from spotter

#193 Postby **Dave** » Fri Apr 13, 2012 6:58 pm

Podcast (multimedia briefing) from TSA (Tulsa OK)

http://www.srh.noaa.gov/tsa/?n=camtasiaBriefing

#194 Postby **Dave** » Fri Apr 13, 2012 7:11 pm

From the spotternetwork: Spotter is 4 miles ESE of Cold Springs, OK (Kiowa county) [34.769/-98.949] -- Wallcloud associated with tornado at Blair has now broken up.

#195 Postby **CrazyC83** » Fri Apr 13, 2012 7:11 pm

If the SPC is inoperational (i.e. gets hit by a tornado, forced to take shelter, etc.), the AFWA in Omaha is the backup. What happens if BOTH are down, who is the secondary backup?

#196 Postby **Dave** » Fri Apr 13, 2012 7:16 pm

Spotter is 3 miles ENE of Roosevelt, OK (Kiowa county) [34.856/-98.967] -- wind driven tennis ball sized hail measured.

#197 Postby **Dave** » Fri Apr 13, 2012 7:21 pm

If AWC has lost production or communications capability, backup will be provided from three U.S. sources: Air Force Weather Agency (AFWA) at Offutt AFB in Omaha Nebraska; Tropical Prediction Center (TPC) in Miami, Fl and the Honolulu Forecast Office (HNL) in Honolulu, Hawaii.

#198 Postby **Dave** » Fri Apr 13, 2012 7:24 pm

HWO - NORMAN OK

715 PM CDT FRI APR 13 2012

THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.

.DAY ONE...THIS EVENING AND TONIGHT...

THUNDERSTORM OUTLOOK...
THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THROUGH TONIGHT
ACROSS PORTIONS OF OKLAHOMA AND WESTERN NORTH TEXAS.

LOCATION...
THE SLIGHT RISK AREA IS GENERALLY NORTHWEST OF AN ATOKA TO LAKE
MURRAY LINE...INCLUDING ALL OF NORTHERN...WESTERN AND CENTRAL
OKLAHOMA...AND WESTERN NORTH TEXAS.

TIMING...
THE MOST LIKELY TIME FOR SEVERE STORMS WILL BE THROUGH 10 PM...BUT
THE RISK WILL CONTINUE THROUGH ABOUT 2 AM.

RECOMMENDED ACTIONS...
STORM SPOTTER GROUPS AND EMERGENCY MANAGEMENT PERSONNEL ACROSS THE
RISK AREA SHOULD PLAN FOR SEVERE WEATHER OPERATIONS THROUGH EARLY
SATURDAY MORNING.

DISCUSSION...
A DIFFUSE DRYLINE/FRONTAL BOUNDARY WILL CONTINUE TO SHIFT
NORTHWESTWARD AND SHARPEN ACROSS WESTERN OKLAHOMA AND
PORTIONS OF WESTERN NORTH TEXAS THROUGH THIS EVENING. MODERATE LOW
LEVEL WINDS...AND A MOIST AND VERY UNSTABLE AIRMASS...WILL EXIST
OVER THE AREA AHEAD OF THIS FEATURE. GIVEN THE MAGNITUDE OF
INSTABILITY AND WIND SHEAR...SUPERCELLS ARE EXPECTED TO CONTINUE TO
DEVELOP THROUGH MUCH OF THIS EVENING...WITH A THREAT OF VERY LARGE
HAIL...DAMAGING WINDS...AND TORNADOES. THE STRONGEST STORMS WILL
PRODUCE HAIL TO THE SIZE OF BASEBALLS AND DAMAGING WINDS OF 70 MPH.
THE TORNADO THREAT WILL CONTINUE INTO LATE EVENING...AS THE LOW
LEVEL JET INCREASES AIDING IN LOW LEVEL STORM INFLOW AND ROTATION.

PROBABILITY TABLE...
VALID THROUGH 700 AM CDT SATURDAY APR 14.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...100 PERCENT.
PROBABILITY OF SEVERE STORMS IF STORMS OCCUR...100 PERCENT.

OTHER HAZARDOUS WEATHER...
NONE.

#199 Postby **CrazyC83** » Fri Apr 13, 2012 7:27 pm

Dave wrote:If AWC has lost production or communications capability, backup will be provided from three U.S. sources: Air Force Weather Agency (AFWA) at Offutt AFB in Omaha Nebraska; Tropical Prediction Center (TPC) in Miami, Fl and the Honolulu Forecast Office (HNL) in Honolulu, Hawaii.

It would look so weird if the NHC was working on this...

#200 Postby **Dave** » Fri Apr 13, 2012 7:28 pm

(8:28 PM) OUN issues Tornado Warning for Comanche, Kiowa [OK] till 8:00 PM CDT ...* AT 726 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR COOPERTON...MOVING EAST AT 15 MPH

Plains Tornado Outbreak 4/14-15

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