Tuesday, April 24, 2007

Strong to Severe Storms Possible Tomorrow Night & Thursday:

SPC Day 2 Outlook

SPC Day 3 Outlook

* Latest run of the GFS (I am looking at the 12Z run) brings a complex of thunderstorms into Mississippi around midnight Wednesday night/Thursday morning and spreads across the state and into Western Alabama around sunrise. Models bring the prime storm activity into Eastern Mississippi and Western Alabama around that time.

* The GFS brings a decent amount of rain into Mississippi as the complex more in but shifts the heavier rain totals from Southwest into Central and Northeast Mississippi. It suggests rain totals from as low as 0.25" to 1.00" for our area (being the higher totals the further north you go)

* Jackson NWS Hazardous Weather Outlook:
...THUNDERSTORMS...
ISOLATED SEVERE THUNDERSTORMS WILL BE POSSIBLE
ACROSS WESTERN PORTIONS OF THE OUTLOOK AREA BY
LATE WEDNESDAY AFTERNOON...GENERALLY WEST OF THE
MISSISSIPPI RIVER. STRONG THUNDERSTORMS WILL BE
POSSIBLE TO JUST EAST OF THE RIVER.

THE STORMS WILL RESULT FROM A POTENT UPPER LEVEL
SYSTEM AND SURFACE LOW IMPACTING THE REGION. THIS
SYSTEM WILL HAVE PLENTY OF MOISTURE AND ADEQUATE
LEVELS OF WIND SHEAR ALONG WITH ENOUGH INSTABILITY TO
SUPPORT THE RISK FOR ISOLATED SEVERE STORMS.

THE PRIMARY RISK WITH THE SEVERE STORMS WILL BE
DAMAGING WINDS AND ISOLATED TORNADOES.

RESIDENTS WEST OF THE MISSISSIPPI RIVER ARE URGE TO
KEEP UP WITH WEATHER UPDATES ON THIS STORM SYSTEM
FOR WEDNESDAY AFTERNOON.

...DAYS TWO AND THREE...WEDNESDAY NIGHT THROUGH
FRIDAY NIGHT...
ISOLATED SEVERE THUNDERSTORMS WILL SPREAD ACROSS
THE REST OF THE REGION ON WEDNESDAY NIGHT AS THE
STORM SYSTEM PUSHES TOWARD THE LOWER MISSISSIPPI
VALLEY. THIS SYSTEM WILL CONTINUE TO HAVE PLENTY
OF MOISTURE AND ADEQUATE LEVELS OF WIND SHEAR ALONG
WITH ENOUGH INSTABILITY TO SUPPORT THE RISK FOR
SEVERE STORMS.

LOCATIONS MAINLY ALONG AND EAST OF THE MISSISSIPPI
RIVER WILL HAVE THE GREATEST RISK FOR SEVERE WEATHER
INITIALLY WEDNESDAY NIGHT INTO THE MORNING HOURS OF
THURSDAY.

RESIDENTS ARE URGED TO KEEP IN TOUCH WITH LATER
FORECASTS CONCERNING THIS POTENT SPRING STORM SYSTEM.
* Trent will have the latest forecast tonight at 5, 6, and 10. I am back to my normal schedule tomorrow... see you at 5:30 AM!

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