WW 476 SEVERE TSTM IA MO 121015Z – 121600Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 476
NWS Storm Prediction Center Norman OK
515 AM CDT Wed Jul 12 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Iowa
Northern Missouri
* Effective this Wednesday morning from 515 AM until 1100 AM CDT.
* Primary threats include...
Widespread damaging winds likely with isolated significant gusts
to 85 mph possible
Isolated large hail events to 1.5 inches in diameter possible
A tornado or two possible
SUMMARY...A fast moving and intense bow echo over eastern Nebraska
will surge across the watch area this morning, posing a risk of
widespread damaging wind gusts, including a few significant severe
gusts over 75 mph.
The severe thunderstorm watch area is approximately along and 80
statute miles north and south of a line from 25 miles south of
Denison IA to 35 miles south southeast of Cedar Rapids IA. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU6).
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 475...
AVIATION...A few severe thunderstorms with hail surface and aloft to
1.5 inches. Extreme turbulence and surface wind gusts to 75 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29045.
...Hart
