Free weather forecast for New York, New Jersey, and eastern Pennsylvania.
The main threat for severe weather will be found over Florida where Tropical Storm Fay is making a second landfall. When a tropical system moves over land, the additional low level wind shear can lead to the development of tornadoes, which is possible over southern Florida. Heavy rain and strong wind gusts exceeding 70 mph [...]
The digging trough over the eastern two-thirds of the nation is producing several areas of potential severe weather across the country.
Over the eastern Great Lakes, an upper low will move into the Great Lakes with a strong cold front at the surface focusing strong to severe thunderstorms over the eastern Great Lakes. The disturbances [...]
The focus of the severe weather this afternoon will be over the northern Plains. A building heat ridge over the southern and central Plains will send hot and moist air into the lower levels of the atmosphere in this region. Meanwhile, a trough will begin to dig over the northern Rockies, which will send a [...]
An active day of severe weather can be expected due to several different disturbances over the United States.
The remnants of Dolly continue to move through the southern Plains, which will produce wide spread showers and thunderstorms from southern Nebraska through central Texas. The greatest threat from these thunderstorms will be the heavy rain, which [...]
The majority of the severe weather today will concentrate in two locations.
A cold front will move through the East coast this afternoon with showers and strong to severe thunderstorms over New England, the Mid Atlantic coast, and the Carolina coast. The combination of increasing lapse rates, strong wind shear, and strengthening isentropic lifting will [...]
The majority of the severe weather today will be focused over the northern Plains and eastern Rockies this afternoon. An area of low pressure and impressive warm front will continue to move north this afternoon. The combination of strong isentropic lifting and a strong mid level disturbance will produce significant lifting and vertical wind shear [...]
Severe thunderstorms will concentrate along and ahead of an advancing cold front over the northern Plains, Mid West, and western Great Lakes. A strengthening disturbance moving south from Manitoba will enhance lifting ahead of the cold front, which will help destabilize the atmosphere. However, low level and mid level vertical shear will be generally weak, [...]
The combination of a strong 500 MB trough over the Great Lakes and Ohio Valley with a stationary front will produce favorable conditions for severe weather from the Mississippi Valley to the Mid Atlantic coast today.
Over the Mississippi and Tennessee Valleys, a weakening MCS this morning will move through these region with heavy rain, strong [...]
There are a few interesting areas of concern for severe weather today spanning from the Rockies to New England.
Over the Rockies, the return flow at the surface is bringing in a great deal of moisture over parts of the eastern Rockies under an area of cold, dry upper level air. The result is that the [...]
The main threat for concentrated severe weather will be over the northern Rockies where a strong upper disturbance will move through eastern Montana. The strongest thunderstorms will produce large hail, strong wind gusts, heavy downpours, and frequent lightning.
Otherwise, much of the CONUS will be quiet with a few isolated severe thunderstorms over the Mid [...]
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