Forecast - Fire Weather

Gladwin/Roscommon Area Forecast



APX AREA OF RESPONSIBILITY

.DISCUSSION...

A dry airmass will remain in place through the remainder of the 
week, leading to near-critical to critical RHs across parts of 
northern Michigan today and Friday. Widespread RHs below 40 percent 
are anticipated away from the immediate lakeshores today with 
minimum RHs expected to dip into the 25-30 percent range across a 
chunk of northeast lower Michigan (including the Huron National 
Forest) this afternoon. Localized critical RHs (20-25 percent) will 
be possible for a few hours -- especially if cloud cover is not as 
expansive as currently forecast, promoting more efficient daytime 
mixing. East 20 ft winds between 5-10 mph are anticipated into this 
evening with occasional gusts to 15-20 mph. Afternoon temperatures 
will range from the low to mid 50s close to the Lake Huron shoreline 
to the upper 50s/low 60s across northwest lower.

Looking ahead, Friday may be the most concerning fire weather day 
this week. Even lower minimum RHs will be possible -- RHs in the 20-
30 percent range across many interior areas with localized readings 
in the teens possible across northwest lower with downsloping east 
winds. 20 ft wind speeds are expected to be higher as well -- 
sustained 7-13 mph with gusts to 20-30 mph possible during the 
afternoon. Warmer temperatures are also anticipated with highs 
ranging from the upper 50s to the low 70s. Some relief is 
in store this weekend as rain chances move in Saturday morning. 


FORECAST

MIZ016-017-021>023-099-212015-
Presque Isle...Alpena...Alcona...Iosco and Arenac
Counties...including Eastern Huron NF-
358 AM EDT Thu May 21 2026

.TODAY...
Sky/Weather.........Mostly sunny (35-45 percent). Areas of frost 
                    until 1200. 
Max Temperature.....53-58...except 40-45 near the coast. 
   24 HR Trend......7 degrees cooler...except 1 degree cooler near 
                    the coast. 
Min Humidity........26-31 percent...except 35-40 percent along the 
                    coast. 
   24 HR Trend......2 percent wetter...except 6 percent drier along 
                    the coast. 
20-Foot Winds.......East winds 5 to 10 mph with occasional gusts up 
                    to 23 mph. 
Vent Rate...........Good (362). 
Mixing Height.......3200 ft agl. 
Transport Winds.....East around 12 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 

.TONIGHT...
Sky/Weather.........Partly cloudy (40-50 percent). 
Min Temperature.....35-40. 
   24 HR Trend......3 degrees warmer. 
Max Humidity........76-81 percent. 
   24 HR Trend......6 percent drier. 
20-Foot Winds.......East winds around 5 mph with occasional gusts 
                    up to 18 mph. 
Vent Rate...........Poor (31). 
Mixing Height.......400 ft agl. 
Transport Winds.....East around 9 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 

.FRIDAY...
Sky/Weather.........Partly sunny (55-65 percent). 
Max Temperature.....58-63...except 44-49 near the coast. 
   24 HR Trend......5 degrees warmer. 
Min Humidity........30-35 percent. 
   24 HR Trend......1 percent wetter. 
20-Foot Winds.......East winds 5 to 10 mph with occasional gusts up 
                    to 27 mph. 
Vent Rate...........Good (413). 
Mixing Height.......2500 ft agl. 
Transport Winds.....East 12 to 18 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 


$$

Crawford...Oscoda...Roscommon...Ogemaw and Gladwin
Counties...including Western Huron NF-
358 AM EDT Thu May 21 2026

.TODAY...
Sky/Weather.........Mostly sunny (40-50 percent). Widespread frost 
                    until 1200. 
Max Temperature.....56-61. 
   24 HR Trend......1 degree warmer. 
Min Humidity........25-30 percent. 
   24 HR Trend......5 percent drier. 
20-Foot Winds.......East winds around 5 mph with occasional gusts 
                    up to 23 mph. 
Vent Rate...........Good (472). 
Mixing Height.......4300 ft agl. 
Transport Winds.....East around 12 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 

.TONIGHT...
Sky/Weather.........Mostly cloudy (45-55 percent) until 2400, then 
                    partly cloudy (35-45 percent). 
Min Temperature.....35-40. 
   24 HR Trend......3 degrees warmer. 
Max Humidity........71-76 percent. 
   24 HR Trend......11 percent drier. 
20-Foot Winds.......East winds around 5 mph with occasional gusts 
                    up to 18 mph. 
Vent Rate...........Poor (43). 
Mixing Height.......500 ft agl. 
Transport Winds.....East 9 to 12 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 

.FRIDAY...
Sky/Weather.........Partly sunny (55-65 percent). 
Max Temperature.....61-66. 
   24 HR Trend......3 degrees warmer. 
Min Humidity........25-30 percent. 
   24 HR Trend......1 percent drier. 
20-Foot Winds.......East winds 5 to 10 mph with occasional gusts up 
                    to 27 mph. 
Vent Rate...........Excellent (680). 
Mixing Height.......3600 ft agl. 
Transport Winds.....East 15 to 21 mph. 
Pcpn Amount.........None. 
Chance of Thunder...0 percent. 


EXTENDED FORECAST


.SATURDAY...MOSTLY CLOUDY WITH SHOWERS. LOWS IN THE MID 40S.
HIGHS AROUND 60. EAST WINDS AROUND 10 MPH. 
.SUNDAY...MOSTLY CLOUDY WITH CHANCE OF SHOWERS. LOWS IN THE MID
40S. HIGHS AROUND 70. SOUTHWEST WINDS AROUND 5 MPH. 
.MEMORIAL DAY...PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN
THE MID 70S. WEST WINDS AROUND 5 MPH. 
.TUESDAY...MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH. 
.WEDNESDAY...PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. EAST WINDS AROUND 5 MPH. 

$$

DJC


GRR AREA OF RESPONSIBILITY

.DISCUSSION...
High pressure north of the state will supply a dry flow from the
Northeast through Friday. This will place the warmest and driest 
conditions along the Lake Michigan shoreline. A system will move
up toward the area Friday night and early Saturday. This will provide
a fairly widespread area of rain. This moves out Saturday afternoon, 
with a few showers and a storm possible Sunday. 


FORECAST

MIZ037>039-043>045-212030-
Clare-Isabella-
Including the cities of Clare and Mount Pleasant
503 AM EDT Thu May 21 2026

.TODAY...
Sky/weather.........Mostly sunny (35-45 percent). Areas of frost 
                    until 8 AM. 
Max temperature.....Around 60. 
   24 hr trend......3 degrees cooler. 
Min humidity........31-36 percent. 
   24 hr trend......7 percent wetter. 
20-foot winds.......East winds 7 to 12 mph. Gusts up to 21 mph in 
                    the afternoon. 
Mixing height.......4300-4800 ft AGL. 
Transport winds.....East around 15 mph. 
Smoke dispersal.....560-830 (good to excellent). 
Pcpn Amount.........None. 

.TONIGHT...
Sky/weather.........Partly cloudy (50-60 percent). 
Min temperature.....37-42. 
   24 hr trend......3 degrees warmer. 
Max humidity........71-76 percent. 
   24 hr trend......2 percent drier. 
20-foot winds.......East winds 5 to 10 mph. 
Mixing height.......3500-4000 ft AGL decreasing to 100-600 ft AGL 
                    after midnight. 
Transport winds.....East 10 to 15 mph. 
Smoke dispersal.....70-550 (poor to good). 
Pcpn Amount.........None. 

.FRIDAY...
Sky/weather.........Partly sunny (55-65 percent). 
Max temperature.....Around 65. 
   24 hr trend......5 degrees warmer. 
Min humidity........31-36 percent. 
   24 hr trend......Unchanged. 
20-foot winds.......East winds 10 to 15 mph with gusts to around 27 
                    mph. 
Mixing height.......3400-3900 ft AGL. 
Transport winds.....East around 15 mph increasing to around 25 mph 
                    in the afternoon. 
Smoke dispersal.....620-950 (excellent). 
Pcpn Amount.........None. 


$$

EXTENDED FORECAST


.FRIDAY NIGHT...Mostly cloudy. Chance of showers in the evening,
then showers and a slight chance of thunderstorms after midnight.
Lows in the lower 50s. East winds 10 to 15 mph. 
.SATURDAY...Mostly cloudy. Showers and a slight chance of
thunderstorms in the morning, then a chance of showers in the
afternoon. Highs in the upper 60s. East winds 8 to 13 mph. 
.SATURDAY NIGHT...Mostly cloudy. Chance of showers in the evening.
Lows in the lower 50s. Northwest winds 5 to 9 mph shifting to the
southwest 5 to 6 mph after midnight. 
.SUNDAY...Mostly cloudy. Chance of showers. Highs in the mid 70s.
Southwest winds 5 to 10 mph. 
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s. West winds
5 to 7 mph in the evening becoming light. 
.MEMORIAL DAY...Mostly sunny. Highs in the upper 70s. Northwest
winds 5 to 6 mph. 
.MONDAY NIGHT...Partly cloudy. Lows in the mid 50s. 
.TUESDAY...Mostly sunny. Highs in the lower 80s. 
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. 
.WEDNESDAY...Partly sunny. Highs in the lower 80s. 

$$


DTX AREA OF RESPONSIBILITY

.DISCUSSION...High pressure will expand across the Great Lakes today
and hold over the region through Friday. This system will sustain
cool conditions with persistent east-northeast winds. The drier
airmass will keep min RH values in the 40s today. An upper level
disturbance then drives widespread rain across the region late
Friday and Friday night. Milder temperatures with shower and
thunderstorms chances will persist through the weekend.

FORECAST


Midland-Bay-Saginaw-Shiawassee-Genesee-
Including the cities of Midland-Bay City-Saginaw-Owosso-Flint
400 AM EDT Thu May 21 2026

.TODAY...
Sky/weather.........Partly cloudy (40-50 percent). 
Max temperature.....54-60. 
   24 hr trend......1 degree cooler. 
Min humidity........31-41 percent. 
   24 hr trend......3 percent drier. 
20-foot winds.......Northeast 5 to 10 mph increasing to 15 to 20 
                    mph in the late morning and afternoon. 
Mixing height.......4150-4650 ft agl. 
Transport winds.....Northeast around 10 mph becoming east. 
Smoke dispersal.....Good (597). 
Pcpn amount.........None. 

.TONIGHT...
Sky/weather.........Partly cloudy (40-50 percent). 
Min temperature.....40-44. 
   24 hr trend......3 degrees warmer. 
Max humidity........72-82 percent. 
   24 hr trend......3 percent drier. 
20-foot winds.......Northeast 5 to 10 mph. 
Mixing height.......900-1100 ft agl. 
Transport winds.....East 10 to 15 mph. 
Smoke dispersal.....Poor (39). 
Pcpn amount.........None. 

.FRIDAY...
Sky/weather.........Partly cloudy (50-60 percent). 
Max temperature.....62-66. 
   24 hr trend......6 degrees warmer. 
Min humidity........32-42 percent. 
   24 hr trend......1 percent drier. 
20-foot winds.......East 15 to 20 mph. 
Mixing height.......3100-3600 ft agl. 
Transport winds.....East 15 to 20 mph. 
Smoke dispersal.....Excellent (602). 
Pcpn amount.........None. 


$$

EXTENDED FORECAST


.SATURDAY...Showers and slight chance of thunderstorms. Lows in the
lower 50s. Highs in the mid 60s. East winds around 15 mph. 
.SUNDAY...Mostly cloudy with chance of showers and thunderstorms.
Lows in the lower 50s. Highs in the mid 70s. Southwest winds around
5 mph. 
.MEMORIAL DAY...Partly cloudy. Chance of showers. Lows in the mid
50s. Highs in the upper 70s. Northwest winds around 5 mph. 
.TUESDAY...Partly cloudy. Lows in the mid 50s. Highs around 80. 
.WEDNESDAY...Partly cloudy. Lows in the upper 50s. Highs around 80. 

$$

TF