Area Forecast Discussion
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
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979 FXUS63 KGRR 170730 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 330 AM EDT Tue Sep 17 2024 .KEY MESSAGES... - Dry and warm weather continues through midweek - Slight chances for rain late this week into next week && .DISCUSSION... Issued at 330 AM EDT Tue Sep 17 2024 - Dry and warm weather continues through midweek Ridging at the sfc/aloft will continue to dominate the wx pattern through midweek bringing mostly clear to partly cloudy skies and warm temps. High temps today will be a bit cooler than yesterday as h8 temps cool a bit to around 13 C. This in conjunction with ample sun will result in high temps reaching the low to mid 80s today. Mins tonight will be mostly in the 50s with potential for some patchy shallow ground fog again during the early morning hours Wednesday. High temps Wednesday will once again reach the low to mid 80s as we continue to have rather large diurnal temp swings with a relatively dry airmass in place. - Slight chances for rain late this week into next week The influence of the blocking high may begin to weaken and translate east later in the week, allowing some jet streaks and upper-level troughs or lows to move closer to our region. Per ensembles, the earliest chance of measurable rain may be Friday, though this is only a slight chance given so few solutions producing rain. The cold front that will approach Michigan, associated with a Dakota-Manitoba low, is likely to get washed out. There is a little better chance of rain around Sunday, which more EC ensembles are clustering toward as a more robust northern stream low moves over the Upper Midwest. However, southern stream ridging from Texas to the Great Lakes at that time does complicate the picture. && .AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 156 AM EDT Tue Sep 17 2024 Going with a persistence forecast for MVFR visibility with mist around sunrise between 11 and 12 Z, at AZO, BTL, and LAN. May happen a little earlier at JXN where it also has a tendency to temporarily drop to IFR. Otherwise, VFR with light winds between NE and SE. Winds should become W at MKG this afternoon as the lake breeze develops. && .MARINE... Issued at 330 AM EDT Tue Sep 17 2024 Sfc ridging will continue to result in light winds in the 5 to 10 kt range which will become onshore in the afternoon and early evening daily. Wave heights will remain aob 1 ft through midweek. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. MARINE...None. && $$ DISCUSSION...Laurens/CAS AVIATION...CAS MARINE...Laurens