Oklahoma Severe Weather Discussion - April 2013

[Plutonic Panda]

This is funny.

[venture]

NWS Norman ‏@NWSNorman2m
Don't be surprised to see sub-freezing svr t-storm warnings tonight! Frzg rain and severe hail at the same time in spots! #okwx

[td25er]

Don't take it out of context. Thunderstorms are a very intricate and fascinating scientific process. Very interesting if you ask me, and they make life less boring.

Also, wildfires serve a very beneficial purpose to the environment. I don't wish for anyone's home to be destroyed by one, but they serve a purpose, same as storms.

I totally agree they are fascinating. I haven't studied meteorology, but I can appreciate the complexity (degree in applied math).

[venture]

Looks like SW OK is finally going to go.

Cells popping up now from Minco back to west of Lawton. Storm down in Baylor Co TX is now severe.

[td25er]

You don't follow these threads very much do you?

No one roots for any destruction to property. However forecasting weather is a science and is fun to test your skills. Also several of us appreciate the amazing power that drives many of the storms we have around here and respect it greatly.

I do follow them during "risky" days because you guys are awesome. It just seems like some posters are actually dissapointed when there is not massive hail and tornadoes.

[ou48A]

https://twitter.com/NWSNorman

NWS Norman‏@NWSNorman1h
Parts of Oklahoma are 50-60 degrees colder than they were at this time yesterday! #okwx pic.twitter.com/6fRLMa64M9

[LocoAko]

Sounds like a severe thunderstorm watch can be expected shortly based on the latest tweet from the NWS. Having elevated severe thunderstorms over a near- or sub-freezing surface layer is just ridiculous. I love the Plains, lol.

[venture]

Cell near Medicine Park and another near Grandfield now, both below severe levels. Cell north of Gage in NW OK may be severe shortly.

[venture]

OUN WW 86 SEVERE TSTM KS OK TX 092235Z - 100600Z http://1.usa.gov/bjHcdO?OUN

WW 86 SEVERE TSTM KS OK TX 092235Z - 100600Z
AXIS..75 STATUTE MILES EAST AND WEST OF LINE..
35SSW SPS/WICHITA FALLS TX/ - 45N HUT/HUTCHINSON KS/ ..AVIATION COORDS.. 65NM E/W /30SSW SPS - 17SW SLN/ HAIL SURFACE AND ALOFT..2 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 23035.


OKLAHOMA COUNTIES INCLUDED ARE ALFALFA BECKHAM BLAINE CADDO CANADIAN CLEVELAND COMANCHE COTTON CUSTER DEWEY ELLIS GARFIELD GARVIN GRADY GRANT GREER HARMON HARPER JACKSON JEFFERSON KAY KINGFISHER KIOWA LINCOLN LOGAN MAJOR MCCLAIN NOBLE OKLAHOMA PAYNE POTTAWATOMIE ROGER MILLS STEPHENS TILLMAN WASH!TA WOODS WOODWARD



URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 86
NWS STORM PREDICTION CENTER NORMAN OK
535 PM CDT TUE APR 9 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

CENTRAL KANSAS
CENTRAL AND WESTERN OKLAHOMA
WESTERN NORTH TEXAS

EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 535
PM UNTIL 100 AM CDT.

WIDESPREAD LARGE HAIL
ISOLATED HAIL TO 2.0 INCHES IN DIAMETER POSSIBLE

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 75
STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH
SOUTHWEST OF WICHITA FALLS TEXAS TO 45 MILES NORTH OF HUTCHINSON
KANSAS. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO INTENSIFY THIS
AFTERNOON AND EVENING OVER THE WATCH AREA. STORMS WILL BE BEHIND A
STRONG SURFACE COLD FRONT. BUT DESPITE THE VERY COLD LOW LEVEL
ENVIRONMENT...FORECAST SOUNDINGS SHOW AMPLE ELEVATED INSTABILITY AND
SHEAR FOR ROTATING THUNDERSTORMS CAPABLE OF LARGE HAIL. COVERAGE OF
STORMS MAY CONTINUE TO INCREASE THROUGH MIDNIGHT.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 23035.

[s00nr1]

I can't recall ever seeing a severe tstorm watch in sub-freezing air.

[ou48A]

I can't recall ever seeing a severe tstorm watch in sub-freezing air.

In about 1972/1973 or so there was a documented tornado in southern Oklahoma that occurred while it was sleeting.

[Anonymous.]

This is sort of scary... The probability of getting greater than half an inch of ice has appeared. Before it was just .25".

[rezman]

I was just outside during the instant temperature drop. Pretty cool! ... no pun intended.

[RadicalModerate]

I can't recall ever seeing a severe tstorm watch in sub-freezing air.

Maybe it is The Weather Apocalypse predicted on the Inca Calendar.
Perhaps PPanda has exactly the right plants to enhance the viewing of The Event.
(from the rosetta stone of obscure references: refer to post 200 ^^^)

Did I hear someone placing bets on weather events?
Has the Elks Club, the VFW, the American Legion and/or The Rotary heard about this?

[venture]

Quick surface map with radar...

West of the White line is below freezing.

[SoonerDave]

NWS Norman ‏@NWSNorman2m
Don't be surprised to see sub-freezing svr t-storm warnings tonight! Frzg rain and severe hail at the same time in spots! #okwx

In my 48 years here in the great state of Oklahoma, I cannot remember ever hearing of such a thing. Hail and freezing rain in the same storm!?!?

[silvergrove]

Quick surface map with radar...

West of the White line is below freezing.

I like how that front goes from fairly straight from Texas to Lawton, then bulges out just so it can get OKC early on

[SoonerDave]

This is sort of scary... The probability of getting greater than half an inch of ice has appeared. Before it was just .25".

This is potentially horrendous.

[venture]

In my 48 years here in the great state of Oklahoma, I cannot remember ever hearing of such a thing. Hail and freezing rain in the same storm!?!?

Well...when was the big ice storm...4 years ago? We had thunderstorms during it, so its kinda the same thing...just that we didn't have hail with it. Just consider the hail REALLY BIG sleet.

[SoonerDave]

Guess we've still got a couple hours before anything down at Lawton would head this way....

[venture]

Beautiful evening to be out on Mount Scott. Storm moving in from the south with hail up to 0.55" right now. NW winds sustained at 33 mph gusting to 43 mph. Air temp...49. Sounds relaxing doesn't it?

[SomeGuy]

So will OKC get ice or not?

[venture]

So will OKC get ice or not?

Looks probable, but lets see how this convection continues to develop first.

[venture]

This is where we stand now with the storms and freezing line.

[MsProudSooner]

I looked at the KOTV website this afternoon. The current temperature was 79 and there was a Winter Weather Advisory in the upper left corner of the screen. That's crazy.