WW 633 SEVERE TSTM NE SD 180935Z – 181500Z
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 633
NWS Storm Prediction Center Norman OK
435 AM CDT Sun Aug 18 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and Northeast Nebraska
Southern South Dakota
* Effective this Sunday morning from 435 AM until 1000 AM CDT.
* Primary threats include…
Isolated significant damaging wind gusts to 75 mph possible
Isolated very large hail events to 2.5 inches in diameter
possible
SUMMARY…Scattered elevated supercells are forecast to continue
southeast into the Watch area this morning. Large to very large
hail (1 to 2.5 inches in diameter) and severe gusts (60-75 mph) are
possible with the stronger storms as this activity moves southeast
along an instability gradient in advance of a mid-level disturbance.
The severe thunderstorm watch area is approximately along and 55
statute miles east and west of a line from 80 miles north northeast
of Ainsworth NE to 35 miles south southeast of Burwell NE. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU3).
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
2.5 inches. Extreme turbulence and surface wind gusts to 65 knots. A
few cumulonimbi with maximum tops to 550. Mean storm motion vector
32030.
…Smith
