Spot Forecast
Issued by NWS Detroit/Pontiac, MI

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Spot Forecast for Huron Hills GC Woods Part 2...City of Ann Arbor, NAP
National Weather Service Detroit/Pontiac MI
751 AM EDT Thu May 2 2024

Forecast is based on ignition time of 1000 EDT on May 02.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...Light northerly winds eventually veer toward the
southeast by this afternoon as high pressure cross the Great lakes.
Showers arrive tonight and expand in coverage Friday. Some storms
are also possible, especially Friday afternoon/evening ahead of a
cold front. Minimum RHs jump from the lower 40s today to lower 60s
Friday with prevailing wind speeds below 15 mph.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent). Slight chance of showers
                    late in the afternoon.
Max temperature.....Around 74.
Min humidity........42 percent.
Eye level winds.....Southeast winds 5 to 6 mph.
Mixing height.......3000 ft AGL.
Transport winds.....Southeast around 9 mph...increasing to 9 to 12
                    mph in the afternoon.
Haines Index........3 to 4 OR very low to low potential for large
                    plume dominated fire growth.
Smoke Dispersal....Fair (MAX...252).

TIME (EDT)      10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........19  15  20  26  31  30  30  32
WEATHER COV.....                            SCH
WEATHER TYPE....                            RW
TEMP............61  64  67  70  71  72  72  72
RH..............61  55  50  46  44  43  42  43
EYE LVL WND DIR.E   E   SE  SE  SE  SE  SE  SE
EYE LVL WND SPD.5   6   6   6   6   6   6   6
EYE LVL WND GST.8   8   10  10  10  11  11  11
MIX HGT (KFT)...2.0 2.5 2.8 3.0 3.0 2.9 2.7 2.4
HAINES INDEX....4   4   4   4   3   3   3   3
SMOKE DISPER....156 202 221 267 266 290 215 195

.TONIGHT...

Sky/weather.........Partly cloudy (35-45 percent)becoming mostly
                    cloudy (55-65 percent). Slight chance of rain
                    showers. Slight chance of thunderstorms early
                    in the evening. Chance of rain showers early in
                    the morning.
Min temperature.....Around 54.
Max humidity........84 percent.
Eye level winds.....Southeast winds up to 6 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 9 to 13 mph.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Smoke Dispersal....Poor (MIN...26).

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........36     46     57     66     65     64
WEATHER COV.....S CHC  S CHC  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............71     67     62     59     56     56
RH..............44     52     61     69     73     77
EYE LVL WND DIR.SE     SE     SE     E      E      SE
EYE LVL WND SPD.6      6      6      5      5      4
EYE LVL WND GST.11     12     11     12     10     8
MIX HGT (KFT)...2000   500    500    500    500    400
HAINES INDEX....3      3      3      3      3      3
SMOKE DISPER....164    48     49     55     53     39

.FRIDAY...

Sky/weather.........Mostly cloudy (65-75 percent). Chance of rain
                    showers and slight chance of thunderstorms
                    early in the morning, then rain showers likely
                    early in the morning. Chance of thunderstorms
                    late in the morning.
Max temperature.....Around 78.
Min humidity........59 percent.
Eye level winds.....Southeast winds around 4 mph...becoming west
                    around 6 mph late in the afternoon.
Mixing height.......2900 ft AGL.
Transport winds.....South 9 to 10 mph...becoming west 10 to 15 mph
                    in the late morning and afternoon.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Smoke Dispersal....Good (MAX...327).

TIME (EDT)      6 AM      9 AM      NOON      3 PM
SKY (%).........55        64        85        88
WEATHER COV.....CHANCE    LIKELY    LIKELY    LIKELY
WEATHER TYPE....RNSHWR    RNSHWR    RNSHWR    RNSHWR
TEMP............57        63        73        75
RH..............82        78        64        61
EYE LEVEL WIND..SE 4      S 4       SW 6      W 6
EYE LEVEL WIND..6         8         11        12
MIX HGT (FT)....400       800       1900      2800
HAINES INDEX....3         3         3         3
SMOKE DISPER....30        73        173       341

$$
Forecaster...Behnke
Requested by...Tina Stephens
Type of request...PRESCRIBED
.TAG 2413008.0/DTX
.DELDT 05/02/24
.FormatterVersion 2.0.0
.EMAIL bhand@a2gov.org