ACUS11 KWNS 102050
SWOMCD
SPC MCD 102050=20
IDZ000-ORZ000-CAZ000-102315-

Mesoscale Discussion 1243
NWS Storm Prediction Center Norman OK
0350 PM CDT Tue Jun 10 2025

Areas affected...Far Northern CA...Southern/Eastern OR

Concerning...Severe potential...Watch unlikely=20

Valid 102050Z - 102315Z

Probability of Watch Issuance...20 percent

SUMMARY...Isolated hail and/or damaging gusts are possible from far
northern CA into southern and eastern OR this afternoon and evening.

DISCUSSION...Visible satellite imagery shows increasing coverage of
deep cumulus across the higher terrain of far northeast CA and
south-central OR, with several instances of convective initiation.
Some additional increase in storm coverage is anticipated as
southwesterly flow and large-scale ascent gradually strengthen.
Isolated hail could occur with this early-stage cellular convection.
A deeply mixed airmass exists downstream, and the general
expectation is for damaging gusts as the storms become more outflow
dominant as they move off the terrain over the next few hours.

..Mosier.. 06/10/2025

...Please see https://urldefense.com/v3/__http://www.spc.noaa.gov__;!!DZ3fj= g!_QqUpaeBBBBpWpt8unwinFrJ0A4MRK0HuwNGtFKaZzf2JiKg4PPtqiW_-UCKN6vpEq7O6vzLv= BV7SEBc8Dm0Ha60FUc$ for graphic product...

ATTN...WFO...BOI...PDT...MFR...

LAT...LON 42622245 43612157 44082064 44282009 44661863 44801751
44471689 44041688 43591708 42971771 42052005 41502187
42622245=20

MOST PROBABLE PEAK WIND GUST...UP TO 60 MPH
MOST PROBABLE PEAK HAIL SIZE...UP TO 1.25 IN


=3D =3D =3D
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