URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 456
NWS Storm Prediction Center Norman OK
600 PM MDT Thu Jun 27 2019
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
South-central and Northeast Montana
* Effective this Thursday night and Friday morning from 600 PM
until 100 AM MDT.
* Primary threats include...
Scattered damaging wind gusts to 70 mph possible
Isolated very large hail events to 2.5 inches in diameter
possible
A tornado or two possible
SUMMARY...A broken band/cluster of storms including a few supercells
will continue generally northeastward through the evening. While
some tornado risk may exist across south-central/east-central
Montana early this evening, the prevalent scenario should be an
increasing risk for damaging winds along with hail.
The severe thunderstorm watch area is approximately along and 70
statute miles north and south of a line from 25 miles north
northeast of Sidney MT to 30 miles north northwest of Lewistown MT.
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 454...WW 455...
AVIATION...A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24035.
...Guyer
Read morefrom SPC Forecast Products http://www.spc.noaa.gov/products/watch/ww0456.html
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