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FXUS01 KWBC 110813

PMDSPD



Short Range Forecast Discussion

NWS Weather Prediction Center College Park MD

400 AM EDT Thu Apr 11 2024



Valid 12Z Thu Apr 11 2024 - 12Z Sat Apr 13 2024



...Powerful storm system to foster high wind potential over much

of the eastern U.S. today with severe weather, heavy rain and

flash flood threats for parts of the Southeast, upper Ohio Valley

and into the northern Mid-Atlantic...



...High wind threat continues across the Great Lakes, Northeast,

and into the Appalachians on Friday into early Saturday as flash

flood threat will be confined to northern New England...



An intensifying low pressure system centered over the Mid-South

early this morning is forecast to track northeast toward the Great

Lakes through tonight.  This system will progressively engulf the

entire eastern U.S. today with widespread moderate rainfall and a

couple axes of heavy rain.  The heaviest rains will be associated

with clusters of strong to severe thunderstorms across the

Southeast ahead of a potent cold front where a few inches of rain

can be expected.  Another area of heavy rain will be near and

along the track of the intense low pressure system center, from

the Mid-Mississippi Valley across the Ohio Valley toward the lower

Great Lakes where 2 inches of rain can be expected.  The intensity

and size of the system will bring the threat of high winds into

much of the eastern U.S. including the Great Lakes, Midwest and

the Ohio Valley through the next couple of days.  The southern

portion of the potent cold front is forecast to move off the

Southeast U.S. this evening, bringing the heavy rain and

thunderstorms out into the Atlantic.  The front will take extra

time to pass through Florida, where a line of strong to severe

thunderstorms is forecast to pass through the peninsula overnight

tonight.  Meanwhile, warm and moist air from the Atlantic will

surge up the Eastern Seaboard tonight with widespread moderate to

locally heavy rain under very strong and gusty south-southeasterly

winds.



Friday will likely see the moderate to heavy rain and high winds

impacting the Great Lakes and the entire Northeast as the

Mid-Atlantic clears out from the rain.  The center of the low

pressure system should begin exiting the Great Lakes into southern

Canada early on Friday.  However, the size and intensity of the

storm will keep the high winds and heavy rain threat into Saturday

morning from the lower Great Lakes to the Northeast with flash

flooding threat to be confined across northern New England.



Outside of the big storm in the eastern U.S., the weather will be

relatively quiet across the Southwest and through the mid-section

of the country under the influence of a high pressure system.  The

West Coast will see somewhat more active weather dropping in from

north to south through the next couple of days as a compact but

energetic upper low that originated from the Arctic Ocean dips

south and approaches California by Saturday morning.  Mainly light

to locally moderate precipitation can be expected to reach coastal

Pacific Northwest today, reaching into northern California on

Friday before sliding south into central California by Saturday

morning.  Some of the precipitation will spill into the interior

section of the Northeast by Friday and continue into Saturday

morning.



Kong





Graphics available at

https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php



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