Area Forecast Discussion
Issued by NWS Duluth, MN
Issued by NWS Duluth, MN
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
45
907 FXUS63 KDLH 252009 AFDDLH Area Forecast Discussion National Weather Service Duluth MN 309 PM CDT Wed Sep 25 2024 .KEY MESSAGES... - Areas of fog tonight which may be dense in some areas. - Dry conditions and above normal temperatures persist through the week and into the weekend. - Rain chances return to start the week as a cold front moves through the region bringing cooler temperatures as well. && .DISCUSSION... Issued at 309 PM CDT Wed Sep 25 2024 High pressure was in control across the Nation`s midsection resulting in mainly clear skies and temperatures warming into the 70s across the Northland. Normal highs for late September across the region are in the middle 60s, so highs are running around 10 to 15 degrees above normal. As temperatures cool tonight, fog is expected to develop across the region. Fog is not expected to be as widespread as this morning, but with Ts falling into the same range as Tds, clear skies and light winds, it is expected to develop despite models being a bit pessimistic on this potential. Coverage of fog will need to be monitored for any potential advisories, but there is the potential for areas of dense fog, especially along the Iron Range. High pressure will remain in control through the week and into the weekend. Not only will this keep the region dry and warm, it will keep the remnants of Hurricane Helene to the south as it moves into the Ohio Valley by the weekend. Temperatures will warm a bit more for Thursday through Saturday with highs in the upper 70s and lower 80s before cooling slightly into the 70s for Sunday. This will result in readings some 10 to 20 degrees above normal. Models are in fairly decent agreement bringing a shortwave trough through the Northern Plains into the Upper Midwest for Monday into Tuesday. While most of the energy and QPF look to remain north of the International Border, there will be around a 10 to 30% chance for some shower activity, mainly along and north of the Iron Range for Monday and Monday night. There will be a lot of dry air to overcome, however, so rainfall may be very light if it occurs at all. Much cooler air will spill into the Northland behind the cold front with highs in the 50s and 60s expected for Tuesday which will be near to slightly below normal for the beginning of October. && .AVIATION /18Z TAFS THROUGH 18Z THURSDAY/... Issued at 1228 PM CDT Wed Sep 25 2024 VFR conditions will prevail into tonight with high pressure in control. MVFR to LIFR fog and ceilings are expected to develop after 06z at DLH, HIB and HYR once again with clear skies and light winds overnight. VFR conditions then return by mid-morning Thursday for the remainder of the period with winds under 10 knots. && .MARINE /FOR NEAR SHORE WATERS OF WESTERN LAKE SUPERIOR/... Issued at 309 PM CDT Wed Sep 25 2024 Winds will diminish tonight and become variable at around 5 knots. With ridging overhead for Thursday, winds will remain variable at 5 to 10 knots Thursday into Thursday night. Winds then become southwesterly for Friday at 6 to 12 knots. Waves will remain under 2 feet through the period. For the open water discussion, refer to the NWS Marquette Area Forecast Discussion at weather.gov/mqt. && .DLH WATCHES/WARNINGS/ADVISORIES... MN...None. WI...None. MARINE...None. && $$ DISCUSSION...BJH AVIATION...BJH MARINE...BJH