387
FNUS53 KGRR 230802
FWFGRR

Fire Weather Planning Forecast for Southwest Lower Michigan
National Weather Service Grand Rapids MI
402 AM EDT Thu May 23 2024

...Dry Through Friday...

.DISCUSSION...Dewpoints fall today as drier air mixes down towards
the surface. Min RH values fall into the 20 to 30 percent range, but
wind gusts will be marginal to support Red Flag criteria. Anticipate
elevated fire weather danger today with near Red Flag across Central
Lower Michigan.

Moisture filters in from the south Friday morning with dewpoints
rising into the mid 60s by the afternoon. Min RH values near 40
percent are expected.

MIZ037>039-043>045-232045-
Mason-Lake-Osceola-Oceana-Newaygo-Mecosta-
Including the cities of Ludington, Baldwin, Reed City, Hart,
Fremont, and Big Rapids
402 AM EDT Thu May 23 2024

.TODAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....73-78.
   24 hr trend......9 degrees warmer.
Min humidity........25-30 percent.
   24 hr trend......31 percent drier.
20-foot winds.......West winds 8 to 13 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......Near Lake Michigan, 2200-2700 ft AGL increasing
                    to 4200-4700 ft AGL in the afternoon.
Mixing height.......Inland, 7900-8400 ft AGL.
Transport winds.....West 15 to 20 mph.
Smoke dispersal.....1850-1860 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Clear (0-10 percent).
Min temperature.....47-52.
   24 hr trend......1 degree warmer.
Max humidity........75-80 percent.
   24 hr trend......41 percent drier.
20-foot winds.......South winds 5 to 6 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......200-700 ft AGL near Lake Michigan and 1100-1600
                    ft AGL Inland.
Transport winds.....Southwest 5 to 10 mph.
Smoke dispersal.....40-140 (poor to fair).
Pcpn Amount.........None.

.FRIDAY...
Sky/weather.........Mostly sunny (35-45 percent).
Max temperature.....77-82.
   24 hr trend......3 degrees warmer.
Min humidity........37-42 percent near Lake Michigan and 29-34
                    percent Inland.
   24 hr trend......
   24 hr trend......8 percent wetter.
   24 hr trend......
20-foot winds.......Southeast winds 7 to 12 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......3700-4200 ft AGL near Lake Michigan and
                    6000-6500 ft AGL Inland.
Transport winds.....South around 10 mph increasing to around 20 mph
                    in the afternoon.
Smoke dispersal.....960-1200 (excellent).
Pcpn Amount.........0.01-0.16 in.


$$

MIZ040-046-232045-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
402 AM EDT Thu May 23 2024

.TODAY...
Sky/weather.........Sunny (20-30 percent).
Max temperature.....Around 78.
   24 hr trend......6 degrees warmer.
Min humidity........23-28 percent.
   24 hr trend......39 percent drier.
20-foot winds.......West winds 9 to 14 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......8500-9000 ft AGL.
Transport winds.....West around 20 mph.
Smoke dispersal.....1920-2020 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Clear (0-5 percent).
Min temperature.....45-50.
   24 hr trend......1 degree warmer.
Max humidity........78-83 percent.
   24 hr trend......28 percent drier.
20-foot winds.......West winds around 5 mph in the evening becoming
                    light.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......1300-1800 ft AGL.
Transport winds.....West around 10 mph.
Smoke dispersal.....40-180 (poor to fair).
Pcpn Amount.........None.

.FRIDAY...
Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 79.
   24 hr trend......2 degrees warmer.
Min humidity........30-35 percent.
   24 hr trend......7 percent wetter.
20-foot winds.......Southeast winds 6 to 11 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......6300-6800 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....670-1070 (excellent).
Pcpn Amount.........none to 0.03 in.


$$

MIZ050-056-064-071-232045-
Muskegon-Ottawa-Allegan-Van Buren-
Including the cities of Muskegon, Grand Haven, Jenison, Holland,
and South Haven
402 AM EDT Thu May 23 2024

.TODAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....75-80.
   24 hr trend......11 degrees warmer.
Min humidity........23-28 percent.
   24 hr trend......27 percent drier.
20-foot winds.......West winds 5 to 10 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......3900-4400 ft AGL near Lake Michigan and
                    7400-7900 ft AGL Inland.
Transport winds.....West around 10 mph.
Smoke dispersal.....1060-1140 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Clear (0-5 percent).
Min temperature.....52-57.
   24 hr trend......1 degree warmer.
Max humidity........62-67 percent.
   24 hr trend......26 percent drier.
20-foot winds.......Light winds becoming southeast around 5 mph
                    overnight.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......600-1100 ft AGL.
Transport winds.....South 5 to 10 mph.
Smoke dispersal.....40-50 (poor).
Pcpn Amount.........None.

.FRIDAY...
Sky/weather.........Mostly sunny (30-40 percent) until 5 PM, then
                    mostly cloudy (70-80 percent). Chance of rain
                    showers after 2 PM.
Chance of pcpn......30 percent in the afternoon.
Max temperature.....80-85.
   24 hr trend......5 degrees warmer.
Min humidity........29-34 percent.
   24 hr trend......8 percent wetter.
20-foot winds.......South winds 8 to 13 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......4200-4700 ft AGL near Lake Michigan and
                    5700-6200 ft AGL Inland.
Transport winds.....South 15 to 20 mph.
Smoke dispersal.....980-1120 (excellent).
Pcpn Amount.........0.02-0.25 in.


$$

MIZ051-052-057>059-232045-
Montcalm-Gratiot-Kent-Ionia-Clinton-
Including the cities of Greenville, Alma, Grand Rapids, Ionia,
and St. Johns
402 AM EDT Thu May 23 2024

.TODAY...
Sky/weather.........Sunny (10-20 percent).
Max temperature.....Around 78.
   24 hr trend......5 degrees warmer.
Min humidity........22-27 percent.
   24 hr trend......21 percent drier.
20-foot winds.......West winds 8 to 13 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......8400-8900 ft AGL.
Transport winds.....West around 15 mph.
Smoke dispersal.....1560-1710 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Clear (0-5 percent).
Min temperature.....Around 53.
   24 hr trend......2 degrees warmer.
Max humidity........55-60 percent.
   24 hr trend......33 percent drier.
20-foot winds.......Light winds.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......1300-1800 ft AGL.
Transport winds.....Southwest around 5 mph.
Smoke dispersal.....30-90 (poor).
Pcpn Amount.........None.

.FRIDAY...
Sky/weather.........Sunny (20-30 percent) until 5 PM, then partly
                    sunny (55-65 percent).
Max temperature.....80-85.
   24 hr trend......3 degrees warmer.
Min humidity........26-31 percent.
   24 hr trend......5 percent wetter.
20-foot winds.......Southeast winds 7 to 12 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......6500-7000 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....890-1130 (excellent).
Pcpn Amount.........0.01-0.11 in.


$$

MIZ065>067-072>074-232045-
Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson-
Including the cities of Hastings, Charlotte, Lansing, Kalamazoo,
Battle Creek, and Jackson
402 AM EDT Thu May 23 2024

.TODAY...
Sky/weather.........Sunny (0-10 percent).
Max temperature.....Around 80.
   24 hr trend......3 degrees cooler.
Min humidity........22-27 percent.
   24 hr trend......17 percent drier.
20-foot winds.......West winds 6 to 11 mph.
Haines Index........6 or high potential for large plume dominated
                    fire growth.
Mixing height.......8200-8700 ft AGL.
Transport winds.....West around 15 mph.
Smoke dispersal.....1270-1390 (excellent).
Pcpn Amount.........None.

.TONIGHT...
Sky/weather.........Clear (0-5 percent).
Min temperature.....Around 54.
   24 hr trend......1 degree warmer.
Max humidity........54-59 percent.
   24 hr trend......31 percent drier.
20-foot winds.......Light winds.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......800-1300 ft AGL.
Transport winds.....Northwest around 5 mph shifting to the south
                    overnight.
Smoke dispersal.....40-60 (poor).
Pcpn Amount.........None.

.FRIDAY...
Sky/weather.........Sunny (15-25 percent) until 5 PM, then partly
                    sunny (50-60 percent).
Max temperature.....Around 83.
   24 hr trend......3 degrees warmer.
Min humidity........26-31 percent.
   24 hr trend......6 percent wetter.
20-foot winds.......South winds 7 to 12 mph.
Haines Index........5 or moderate potential for large plume
                    dominated fire growth.
Mixing height.......6200-6700 ft AGL.
Transport winds.....South 10 to 15 mph.
Smoke dispersal.....900-1120 (excellent).
Pcpn Amount.........None to 0.14 in.


$$

.FORECAST FOR DAYS 3 THROUGH 7...

.FRIDAY NIGHT...Mostly cloudy with a chance of thunderstorms.
Showers. Lows in the upper 50s. Southeast winds 5 to 9 mph shifting
to the southwest overnight.
.SATURDAY...Mostly sunny. Highs in the lower 70s. West winds 6 to
11 mph.
.SATURDAY NIGHT...Partly cloudy. Lows in the lower 50s. Northwest
winds 5 to 7 mph shifting to the east 5 to 6 mph overnight.
.SUNDAY...Mostly cloudy. Chance of showers and thunderstorms in the
afternoon. Highs in the mid 70s. East winds 5 to 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of thunderstorms.
Showers likely in the evening, then a chance of showers overnight.
Lows in the mid 50s. East winds 5 to 10 mph.
.MEMORIAL DAY...Partly sunny. Chance of showers until midday, then
showers likely in the afternoon. Highs in the upper 60s. Northwest
winds 7 to 12 mph.
.MONDAY NIGHT...Partly cloudy with a chance of showers. Lows in the
lower 50s.
.TUESDAY...Partly sunny with a chance of showers. Highs in the upper
60s.
.TUESDAY NIGHT...Partly cloudy with a chance of showers. Lows in the
upper 40s.
.WEDNESDAY...Mostly sunny. Highs in the upper 60s.

$$