Area Forecast Discussion
Issued by NWS Medford, OR
Issued by NWS Medford, OR
Versions:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
312 FXUS66 KMFR 241731 AAA AFDMFR Area Forecast Discussion National Weather Service Medford OR 1030 AM PDT Fri May 24 2024 Updated Aviation Discussion .DISCUSSION...Satellite imagery shows varying amounts of high and m id level clouds ahead of an approaching weak upper trough. The upper trough axis is over the west side valleys and will move east late this morning. Meanwhile instability will increase east of the Cascades and this in combination with ample mid level moisture and weak trigger will be enough for isolated thunderstorms from around Mount Shasta and points east to northeast of there and in portions of Lake and northeast Klamath County this afternoon into early this evening. Meanwhile intermittent showers are expected north of the Umpqua Divide, Coos and northern Curry County, with precipitation amounts less than a 0.10 of an inch. Changes were made to the forecast to reflect the above mentioned. -Petrucelli && .AVIATION...24/18Z TAFs... An approaching weak front will move onshore late this afternoon and inland tonight. Northwesterly winds will pick up ahead of the front this afternoon and continue into the evening as the front gradually moves inland, but winds won`t be as significant as the system that passed through earlier this week. Light, spotty precipitation will move onshore and inland late this afternoon into tonight. Best chances will be in northern portions of the region (northern Douglas, Coos, Klamath, and Lake counties) as well as along the south OR Cascade crest. Additionally, there is about a 15-20% chance for isolated thunderstorms developing later in the afternoon into the evening in southern and eastern Lake, eastern Siskiyou and Modoc counties. MVFR and local IFR conditions will develop along the coast in the late afternoon and early evening, continuing overnight. Inland MVFR conditions are expected in Douglas County this evening and tonight. Mountain obscurations are also expected from the Southern Oregon Cascades west this evening through early Saturday morning. Conditions are expected to improve to VFR areawide by late Saturday morning. -CC && .MARINE...Updated 800 AM Friday, May 24, 2024...A front will move through the waters this afternoon. Expect moderate north to northwest winds and steep, short period seas to develop this evening and last into Saturday. Gusty north winds (with gusts up to 25 kt) and steep seas may linger into Saturday evening for areas south of Cape Blanco. Winds and seas are expected to lower Sunday into Monday but may remain locally gusty for areas south of Cape Blanco. Another front moves through next Tuesday but expect mainly light winds. This is followed by a potential for increasing north winds and seas on Wednesday and Thursday. -CC && .MFR WATCHES/WARNINGS/ADVISORIES... OR...CA...None. PACIFIC COASTAL WATERS...Small Craft Advisory from 5 PM this afternoon to 5 PM PDT Saturday for PZZ350-356-370-376. && $$