Scientific Forecaster Discussion

Return to Local Conditions & Forecast

Without Abbreviations
With Abbreviations

fxus63 kgrr 240640 

Area forecast discussion
National Weather Service Grand Rapids Michigan
240 am EDT Sat Aug 24 2019

Latest update...

issued at 240 am EDT Sat Aug 24 2019

- comfortable weather continues through the weekend.

- Showers/storms likely Monday night through Tuesday morning.


Discussion...(today through next friday)
issued at 240 am EDT Sat Aug 24 2019

A large dome of high pressure over the Great Lakes will result in
clear skies through Sunday. So another day with highs in the mid 70s
lows around 50 is expected. Late in the weekend, the high will drift
east and more humid weather will return. A sizable upper trough
will move through late Monday ahead of a cold front and give US a
good chance at seeing rain. Locally heavy rainfall appears possible
given precipitable water values around 2 inches. Quantitative precipitation forecast in excess of an
inch is progd for much of the western cwa late Monday into Tuesday.

This looks like mostly a rain event with a few embedded non severe
storms due to limited instability.

After the cold front moves through Tuesday, drier and cooler air
will flow into the cwa and highs will fall back to the lower to mid


Aviation...(for the 06z tafs through 06z Saturday night)
issued at 130 am EDT Sat Aug 24 2019

VFR conditions will continue through tonight. Winds will be near
calm tonight and from the east at 5 to 10 knots on Saturday.


issued at 240 am EDT Sat Aug 24 2019

High pressure over the Great Lakes will result in 1-2 foot waves and
variable winds around 10 knots today and tonight.


GRR watches/warnings/advisories...


National Weather Service Glossary of Abbreviations