Day: July 15, 2024

SPC Severe Thunderstorm Watch 539

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WW 539 SEVERE TSTM IA IL MO WI 152020Z – 160400Z
WW 0539 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 539
NWS Storm Prediction Center Norman OK
320 PM CDT Mon Jul 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Central and Eastern Iowa Northwest Illinois Northeast Missouri Southwest Wisconsin * Effective this Monday afternoon and evening from 320 PM until 1100 PM CDT. * Primary threats include... Widespread damaging winds and isolated significant gusts to 85 mph likely Scattered large hail likely with isolated very large hail events to 2.5 inches in diameter possible A tornado or two possible SUMMARY...Intense thunderstorms will soon develop across Iowa in a
very moist and unstable air mass. Activity will track eastward and
organize into a fast-moving bowing cluster, capable of very damaging
wind gusts and large hail. A tornado or two is also possible across
this region. The severe thunderstorm watch area is approximately along and 85
statute miles north and south of a line from 25 miles west of Des
Moines IA to 5 miles east southeast of Rockford IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes. && OTHER WATCH INFORMATION...CONTINUE...WW 538... AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A
few cumulonimbi with maximum tops to 600. Mean storm motion vector
27035. ...Hart

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SPC Severe Thunderstorm Watch 538

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WW 538 SEVERE TSTM NY PA LE LO 151620Z – 152300Z
WW 0538 Image

 URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 538
NWS Storm Prediction Center Norman OK
1220 PM EDT Mon Jul 15 2024 The NWS Storm Prediction Center has issued a * Severe Thunderstorm Watch for portions of Western and Central New York Northern Pennsylvania Lake Erie Lake Ontario * Effective this Monday afternoon and evening from 1220 PM until 700 PM EDT. * Primary threats include... Scattered damaging wind gusts to 70 mph likely Isolated large hail events to 1.5 inches in diameter possible SUMMARY...Scattered thunderstorms are expected to intensify through
the afternoon and spread eastward across the watch area. The
strongest cells will pose a risk of damaging wind gusts and some
hail. The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 30 miles west northwest
of Jamestown NY to 30 miles south of Utica NY. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU8). PRECAUTIONARY/PREPAREDNESS ACTIONS... REMEMBER...A Severe Thunderstorm Watch means conditions are
favorable for severe thunderstorms in and close to the watch area.
Persons in these areas should be on the lookout for threatening
weather conditions and listen for later statements and possible
warnings. Severe thunderstorms can and occasionally do produce
tornadoes. && AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
27030. ...Hart

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Chicago, Milwaukee among 32 million under severe weather threat as damaging storms slice across Midwest

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Chicago, Milwaukee among 32 million under severe weather threat as damaging storms slice across Midwest

The new workweek is getting off to a stormy start in the Midwest as tens of millions of people across the region face the risk of severe weather for the third-straight day, with cities such as Chicago and Milwaukee bracing for thunderstorms that will be capable of producing large hail, hurricane-force wind gusts and possible tornadoes.