National Weather Service Raw Text Product
Displaying AFOS PIL: AFDGRR Received: 2020-06-29 07:09 UTC
Previous in Time Latest Product Next in Time
View All KGRR Products for 29 Jun 2020 View All AFD Products for 29 Jun 2020 View As Image Download As Text
915 FXUS63 KGRR 290709 AFDGRR Area Forecast Discussion National Weather Service Grand Rapids MI 309 AM EDT Mon Jun 29 2020 LATEST UPDATE... Synopsis/Discussion/Marine .SYNOPSIS... Issued at 309 AM EDT Mon Jun 29 2020 - Dry most of the week - Very warm through the week && .DISCUSSION...(Today through next Sunday) Issued at 309 AM EDT Mon Jun 29 2020 - Dry most of the week Predominantly dry wx is fcst through most of the upcoming week. However a few showers and perhaps a storm may clip our wsw fcst area early this week. This as a result of weak isentropic upglide to the ne of the stationary frontal boundary which will extend from northern IL se to central/southern IN early this week. Low level convergence with the lake breeze will also aid this potential each afternoon. However a consensus of latest medium range guidance/ensembles continues to suggest that most of the rain and convection will stay to our west/sw/south in closer proximity to the stationary front. - Very warm through the week Latest ensembles and medium range guidance continues to suggest it will be very warm through the week as the upper ridge builds in and h8 temps slowly moderate. High temps will reach the mid to upper 80s daily and h8 temps/500 hgts suggest high temps will likely reach the lower 90s by the holiday weekend. Ensembles also continue to indicate a very dry pattern will develop the next couple of weeks. && .AVIATION...(For the 06Z TAFS through 06Z Monday night) Issued at 255 AM EDT Mon Jun 29 2020 VFR weather is in place across Southwest Lower Michigan at 06z. This should continue to be the case for the most part the next 24 hours. There are two aviation concern through the forecast period. The first is a very small chance for some light/patchy fog this morning. All observation sites are reporting 10 mile visibilities at this point and we are not expecting any major fog development. The second concern is the threat of showers and thunderstorms this afternoon and evening. We are expecting scattered storms from roughly 19z to 03z from about U.S. Highway 131 to the west. The storms are not expected to be strong and will randomly bubble up across the area given low wind shear. Cannot rule out some brief IFR/MVFR conditions in the heavier rain in the cores of the cells. Winds through the period will be light from the southeast at 5-10 knots. && .MARINE... Issued at 309 AM EDT Mon Jun 29 2020 A high pressure ridge will result in minimal wind speeds and wave heights below two feet early this week. Offshore winds are forecast for the most part but winds will swing around to the northwest to west around midday daily. && .GRR WATCHES/WARNINGS/ADVISORIES... MI...None. LM...None. && $$ SYNOPSIS...Laurens DISCUSSION...Laurens AVIATION...Duke MARINE...Laurens