Area Forecast Discussion
Issued by NWS Grand Rapids, MI

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
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 46 47 48 49 50
000
FXUS63 KGRR 181726
AFDGRR

Area Forecast Discussion
National Weather Service Grand Rapids MI
126 PM EDT WED MAY 18 2016

LATEST UPDATE...
Aviation

.SYNOPSIS...
Issued at 327 AM EDT Wed May 18 2016

High pressure will remain situated over the Great Lakes through the
upcoming weekend. Dry weather is forecast over Southwest Lower
Michigan into early next week. Temperatures will gradually warm each
day from the 60s today to around 70 on Friday and into the 70s over
the weekend.

&&

.SHORT TERM...(Today through Friday)
Issued at 327 AM EDT Wed May 18 2016

High pressure will be in firm control of the weather through Friday.
Dry weather is forecast with frost being the only concern. Will not
be making any changes to the going frost and freeze headlines. Lows
tonight will likely dip into the lower to middle 30s across interior
Central Lower Michigan.

Large diurnal temperature swings can be expected in the dry airmass,
with cool morning readings in the 30s rising into the middle to
upper 60s today and pushing close to 70 on Thursday.

.LONG TERM...(Friday night through Tuesday)
Issued at 327 AM EDT Wed May 18 2016

Pretty quiet weather is expected through Monday, after which a cold
front moving across the Great Lakes may trigger a few thunderstorms.

A large area of high pressure over the northern Great Lakes will
provide sunny skies through the weekend. Model trends continue to
push showers associated with a southern stream system farther south
across the Tennessee Valley; we removed pops from Friday night. The
most we`ll likely see are some mid/high clouds over the southern
CWA. Monday and much of Tuesday look dry too, but the cold front
approaching from the west may produce a few storms late in the day.

Temperatures will climb into the lower to mid 70s through the period.

&&

.AVIATION...(For the 18Z TAFS through 18Z Thursday afternoon)
Issued at 126 PM EDT Wed May 18 2016

No big impacts to aviation interests over the next 24 hours, and
likely well beyond. Mainly clear skies can be expected thr4ough
the period, with only a few cumulus clouds around during the
afternoon hours. Winds will generally change from the NE to NW
this evening before going light. KMKG is seeing a lake breeze that
will subside toward sunset. Winds will become more Wrly on
Thursday at all locations and remain below 10 knots.

&&

.MARINE...
Issued at 327 AM EDT Wed May 18 2016

High pressure and light winds are expected the next several days.
Waves will generally be a foot or less through Friday.


&&

.HYDROLOGY...
Issued at 1136 AM EDT Wed May 18 2016

Given the current trends, advisories at Maple Rapids and Ionia
could possibly be dropped by the end of the work week. Steady
declines should then continue right into the weekend with
primarily dry conditions pushing into early next week. Aside from
a few afternoon showers and storms Monday/Tuesday, elevated rain
chances should hold off until the middle of next week.

&&

.GRR Watches/Warnings/Advisories...
MI...Freeze Warning until 8 AM EDT Thursday for MIZ037>040.

     Frost Advisory until 8 AM EDT Thursday for MIZ043>046-051-052.

LM...None.
&&

$$

SYNOPSIS...Duke
SHORT TERM...Duke
LONG TERM...04
AVIATION...NJJ
HYDROLOGY...JAM
MARINE...Duke



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.