Saturday, May 18, 2013

Moderate risk for severe for Kansas City, Oklahoma City and Tulsa

Severe weather risk for Sunday
Updated Saturday afternoon.... the Storm Prediction Center has a moderate risk for severe weather (45% area) for Sunday for Oklahoma City, Tulsa and Kansas City.

The hatch marks show where EF2 or stronger tornadoes are possible along with thunderstorm winds above 80 mph.

SPC says:  FORECAST SHEAR PROFILES STRONGLY FAVOR LONG-LIVED SUPERCELLS AND WHERE DEW POINTS HOLD IN THE UPPER 60S/LOWER 70S...TORNADOES CAN BE EXPECTED. GIVEN THE EXPECTED SHEAR/INSTABILITY THERE IS SUPPORT FOR STRONG TORNADOES. ADDITIONALLY...VERY LARGE HAIL SHOULD ACCOMPANY THIS ACTIVITY. MATURING COMPLEX OF STORMS SHOULD PROGRESS ACROSS KS/NERN OK INTO WRN MO WITH MORE SCATTERED ACTIVITY ACROSS CNTRL/SRN OK.

NWS Oklahoma City....  INSTABILITY AND WIND FIELDS WILL BE VERY FAVORABLE FOR HIGH END SEVERE STORMS.

NWS Tulsa....  THE STAGE IS SET FOR A SIGNIFICANT OUTBREAK OF SEVERE WEATHER ACROSS PARTS OF EASTERN OKLAHOMA AND NORTHWEST ARKANSAS LATE SUNDAY...WITH A REPEAT PERFORMANCE IN SOME AREAS MONDAY. ALL MODES OF SEVERE WEATHER WILL BE POSSIBLE WITH SOME HIGH END EVENTS LIKELY.
IT WILL BE A POTENTIALLY DANGEROUS LATE AFTERNOON AND EVENING...ESPECIALLY ALONG AND NORTH OF I-44.


NWS Kansas City....   It still appears that if things were to come together correctly, parts of eastern Kansas and western Missouri could see a line of supercells capable of producing very large hail (baseball-size or larger), damaging winds and tornadoes. Exact tornado threat, and any potential for long-lived strong tornadoes, will depend on the evolution of low-level wind fields and low-level instability which are difficult to get a feel for given the model spread

Tornadoes this year

It has been a quiet year so far for tornadoes..... on a rate for the quietest year in 60 years but that will probably change tomorrow.

Kentucky has had 14 tornadoes this year which is above the annual average of 11.

Kentucky has had more tornadoes than 42 other states.

If you compute number of tornadoes by state area size, Kentucky ranks number 6. Last year Kentucky was number one in the nation.

Indiana has had 4 tornadoes so far this year.

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