Here is additional information for the winter storm/heavy snow event. All
mountain passes will receive a pretty generous dousing Saturday through Monday.
See below graphics for timing and forecast snow amounts. Consider not traveling
at high elevations if you don’t absolutely have to.
Morgan Lindsay
Klamath County Emergency Management
2543 Shasta Way, Klamath Falls, OR 97603
541-851-3741 Office
541-281-8357 Cell
From: Michael Petrucelli - NOAA Federal [mailto:michael.petrucelli@xxxxxxxx]
Sent: Friday, March 3, 2017 3:07 PM
To: _NWS WR MFR Gotomeeting <mfr.gotomeeting@xxxxxxxx>
Subject: Heavy mountain snow and lower elevation snow Saturday night through
Sunday
Partners,
A PDF is attached. Unusually low snow levels for this time of year.
[NWS Headline Banner.PNG]
Heavy mountain snow and lower elevation snow Saturday night through Sunday
Impacts
· Snow covered roads will result in travel concerns for the mountain passes.
· Snow covered roads could also impact passes on I-5 from Grants Pass to
Roseburg.
· Brief whiteout conditions possible due to a combination of snow and wind in
the mountains.
· Snow will melt off on roads in the valleys Sunday morning and remain wet due
to warm road temperatures. Although brief roadside slush is possible in heavier
showers Sunday afternoon.
· A better chance for slushy or snow covered roads in the valleys Sunday night
into Monday morning and could be slower to melt off.
Forecast Confidence
· High for snow covered roads in the mountains.
· Medium for snow amounts in the mountains.
· Low for snow covered roads near and at the valley floor.
· Medium for the lower passes on I-5 (Sexton,Canyon Creek ect).
· Low for snow amounts in the lower elevations.
Timing and Strength
· Snow:
o The time period of highest concern is Sunday night through Monday morning.
o Snow levels will start out near 3000 feet Saturday evening, lowering to the
valley floors Sunday morning. Heaviest snow will be above 2500 feet.
o Snow levels will come up to around 1500 feet Sunday, but could briefly lower
to 1000 feet or less in heavier showers Sunday afternoon and evening.
o Snow levels will lower back down to the valley floors Sunday night into
Monday morning.
o See attached graphics for storm total snow amounts.
Weather Summary
A storm system will bring in a much colder and unstable air mass Saturday
afternoon through Sunday night. Snow levels will come down to around 3000 feet
Saturday evening, then down near the valley floors Sunday morning. Snow levels
will come up to around 1500 feet Sunday afternoon, but could briefly lower to a
1000 feet or less in heavier showers Sunday afternoon and evening. Showers are
expected just about everywhere during this time, but they will tend to be more
frequent and heavier Sunday afternoon and evening. Significant snow is likely
in the mountains, but low elevation snow is also a concern Saturday evening
through Sunday night. The net impact we will see in the lower elevations will
depend on the timing and intensity of showers. For example, if they come during
the day, the stronger March sun and warmer road temperatures should limit the
impacts. If it comes in at night, then impacts could be more significant. This
is why the forecast confidence for snow covered roads and amounts in the lower
elevations are low to medium. Road snow will be a concern at low and high
elevations Monday morning, then confined to the higher passes Monday afternoon.
For a detailed view of the hazards areas, visit the NWS Weather and Hazards
Viewer.<http://www.wrh.noaa.gov/map/?wfo=mfr>
Please do not reply to this email. Contact NWS Medford at (541) 773-1067 for a
24x7 forecaster.
Monitor NWS Medford on the web<http://weather.gov/medford>
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YouTube<https://www.youtube.com/user/NWSMedford> for further updates.
For information on how to receive our warnings via our iNWS notification
system, contact ryan.sandler@xxxxxxxx<mailto:ryan.sandler@xxxxxxxx>.
[https://lh4.googleusercontent.com/B2h4nAqU2iQE_5FtjWovP1mJQ3AFn9a4ZGy5wvsmeb5EGux5hkcaObvRWRZQB6oHjrCkR6fMzLrmNV_rY4Qw9rM04CEKc2bsxB41lVflX-_wjQPf8kcmtVnYFUwarvrEmbyCZTOX]
[https://lh5.googleusercontent.com/YxvN3aPp5d0bLSNRF04zGU69bMucuub6hx73U0lKvZ-GmC3fI0aAMaofxD5z0xU2beOIUlgVrF5fqsmUtkRJdOrEFh1jWbUKCqg7UL-Q8H2_7HeSL6ox8Gr3v5mylG-GakycEckF]
[https://lh4.googleusercontent.com/6PXZ6sqDZwfyLPYt0kZg0U_1Iri2ubWBjpReadsGwd47RDGkAT5wKQvHsB2PjxVQyLBPyjAlPn3EdUawVACkIh-_YCZyCl5MM-3l32Fyhp0gOctYhSeqNfw7YSeisO3riYdV_Q8v][https://lh6.googleusercontent.com/UiAk2XRXdx3gDfr4ddouwtni_2-sOaR4YNtm6U5_Oe7hm-ZtVI0g6jHajDfSLswgqVUiGXrkXcwKvAH4ayF7d8goBpx3iJImAXe2BQBl7RbxxQY2lDmZXVEOMQq3WcxS5fqo2xP_]
--
Michael Petrucelli
Meteorologist, Aviation and D.O.T Focal Point
National Weather Service - Medford, OR
4003 Cirrus Drive
Medford OR 97504
541-773-1067
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Attachment:
NWSPartnerE-mailBriefing 3-3-17.pdf
Description: NWSPartnerE-mailBriefing 3-3-17.pdf
