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SPC Severe Thunderstorm Watch 539

SPC Severe Thunderstorm Watch 539

[html]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 co*plete
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...c*NTINUE...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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Source: SPC Severe Thunderstorm Watch 539 (http://ht**://www.spc.noaa.gov/products/watch/ww0539.html)