Area Forecast Discussion
Issued by NWS Grand Rapids, MI
Issued by NWS Grand Rapids, MI
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094 FXUS63 KGRR 171100 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 700 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 /12Z TAFS THROUGH 12Z WEDNESDAY/... Issued at 700 AM EDT Tue Sep 17 2024 Patchy mist/fog is reducing visibilities to MVFR/IFR in parts of central and south-central Lower Michigan, including JXN. This should quickly clear out with sunshine. High confidence in VFR with CLR skies and light winds mainly from the east. MKG`s wind direction may become NW after 18 Z as the lake breeze develops. JXN is a candidate to drop vis to MVFR again in the pre-dawn hours of Wednesday. && .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