000
NOUS44 KLZK 071731
PNSLZK
ARZ003>007-012>016-021>025-030>034-037>047-052>057-062>069-080200-

PUBLIC INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LITTLE ROCK AR
1225 PM CDT FRI AUG 7 2009

...AN UNUSUAL JULY IN ARKANSAS...

IT WAS A VERY WET JULY...WITH RECORD RAINFALL FOR THE MONTH
AT SEVERAL LOCATIONS. FOR EXAMPLE...A RECORD 11.65 INCHES OF
RAIN WAS MEASURED AT LITTLE ROCK...WHICH SHATTERED THE PREVIOUS
RECORD OF 9.23 INCHES IN 1891. OTHER THAN A LOT OF WATER...THERE
WERE SOME TORNADO MILESTONES OF NOTE.

ON JULY 21ST...THERE WERE FOUR TORNADOES SPAWNED...WITH ANOTHER
FOUR TORNADOES ON THE 30TH. THERE HAVE NOT BEEN THIS MANY TORNADOES
IN ANY JULY SINCE 1950. UP UNTIL THIS YEAR...THE MOST TORNADOES
WAS FIVE IN 1964.

WHILE SURVEY RESULTS ARE NOT OFFICIAL YET...IT APPEARS THAT
ONE OF THE TORNADOES ON THE 30TH TRACKED A LITTLE MORE THAN
32 MILES. THIS IS BY FAR THE LONGEST TRACK IN JULY...WITH THE
PREVIOUS RECORD TRACK OF ONLY 6.9 MILES ON JULY 4 1978.

THIS TORNADO WAS RATED AS EF2 ON THE ENHANCED FUJITA SCALE.
OF THE FOUR DOZEN OR SO TORNADOES THAT OCCURRED IN JULY BEFORE
THIS YEAR...ONLY SEVEN WERE THIS STRONG. USUALLY...TORNADOES
IN JULY ARE WEAK AND SHORT-LIVED.

WHY WAS IT SO WET WITH SO MANY TORNADOES? THE STORM TRACK
IN THE SUMMER USUALLY RIDES WELL NORTH OF THE STATE IN AREAS
SUCH AS THE NORTHERN PLAINS...UPPER MIDWEST AND GREAT LAKES.
IN ARKANSAS...THERE IS OFTEN A RIDGE OF HIGH PRESSURE NEARBY...
WITH HOT CONDITIONS AND ONLY ISOLATED PRECIPITATION. THIS JULY...
THE HIGH WAS WELL TO THE WEST...AND THE STORM TRACK DIPPED WELL
TO THE SOUTH. THIS RESULTED IN STORMY AND COOL CONDITIONS.

$$

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