Zone Forecast Product
Issued by NWS Denver/Boulder, CO

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000
FPUS55 KBOU 212123
ZFPBOU

Zone Forecast Product for Northeast Colorado
National Weather Service Denver/Boulder CO
323 PM MDT Mon Aug 21 2017

COZ039-040-221215-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
including Arvada, Boulder, Golden, Lakewood, Longmont, Aurora,
Brighton, City of Denver, Denver International Airport,
Highlands Ranch, Littleton, and Parker
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. Slight chance of thunderstorms early in
the evening. Slight chance of rain showers towards sunrise. Areas
of fog towards sunrise. Lows in the 50s. Chance of precipitation
10 percent.
.TUESDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then a slight chance of thunderstorms in the afternoon.
Areas of fog in the morning. Highs in the lower 80s. Southeast
winds 10 to 15 mph in the afternoon. Chance of precipitation
10 percent.
.TUESDAY NIGHT...Mostly cloudy. A 30 percent chance of
thunderstorms in the evening. Lows in the upper 50s. South winds
10 to 15 mph in the evening becoming light.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s.
.THURSDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs in the 80s.
.THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid to
upper 80s. Lows in the upper 50s.
.SATURDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the 80s.
.SATURDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.MONDAY...Mostly sunny. Highs in the 80s.

$$

COZ038-221215-
Larimer County Below 6000 Feet/Northwest Weld County-
including Fort Collins, Hereford, Loveland, and Nunn
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. Areas of fog after midnight. A
10 percent chance of rain showers towards sunrise. Lows in the
lower to mid 50s.
.TUESDAY...Mostly cloudy in the morning, then partly cloudy with
a 10 percent chance of thunderstorms in the afternoon. Areas of
fog in the morning. Highs in the lower to mid 80s. South winds
10 to 15 mph in the afternoon.
.TUESDAY NIGHT...Mostly cloudy with a 10 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the 50s.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the mid 50s.
.THURSDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Mostly cloudy. Lows in the mid 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid to
upper 80s. Lows in the mid 50s.
.SATURDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the lower to mid 80s.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the lower to mid 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the lower to mid 80s.

$$

COZ041-221215-
Elbert/Central and East Douglas Counties Above 6000 Feet-
including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
323 PM MDT Mon Aug 21 2017

.TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in
the evening. Areas of fog towards sunrise. Lows in the lower to
mid 50s.
.TUESDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then a slight chance of thunderstorms in the afternoon.
Areas of fog in the morning. Highs 76 to 82. South winds 10 to
15 mph with gusts to around 25 mph in the afternoon. Chance of
precipitation 10 percent.
.TUESDAY NIGHT...Mostly cloudy. A 30 percent chance of
thunderstorms in the evening. Lows 51 to 57. South winds 10 to
15 mph.
.WEDNESDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 78 to 84.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 52 to 58.
.THURSDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 78 to 84.
.THURSDAY NIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms. Lows 52 to 58.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy with a 10 percent chance
of thunderstorms. Highs 80 to 86. Lows 53 to 59.
.SATURDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 79 to 85.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 52 to 58.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs 78 to 84. Lows
52 to 58.
.MONDAY...Mostly sunny. Highs 79 to 84.

$$

COZ042>045-221215-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
including Briggsdale, Grover, Pawnee Buttes, Raymer, Stoneham,
Eaton, Fort Lupton, Greeley, Roggen, Brush, Fort Morgan,
Goodrich, Wiggins, Bennett, Byers, Deer Trail, and Leader
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. Areas of fog after midnight. Lows in
the mid 50s. Northeast winds 10 to 15 mph in the evening becoming
light.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Areas of fog in the morning. Highs in the lower to mid
80s. Southeast winds 10 to 15 mph with gusts to around 25 mph in
the afternoon.
.TUESDAY NIGHT...Partly cloudy. A 10 percent chance of
thunderstorms in the evening. Lows in the mid to upper 50s. South
winds 10 to 15 mph with gusts to around 25 mph.
.WEDNESDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the mid to upper 80s.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s.
.THURSDAY AND THURSDAY NIGHT...Mostly cloudy with a 30 percent
chance of thunderstorms. Highs in the mid to upper 80s. Lows in
the upper 50s.
.FRIDAY AND FRIDAY NIGHT...Partly cloudy. Highs in the mid 80s to
lower 90s. Lows in the upper 50s.
.SATURDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs in the mid to upper 80s.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the upper 50s.
.SUNDAY...Mostly sunny. Highs in the mid to upper 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.MONDAY...Mostly sunny. Highs in the mid to upper 80s.

$$

COZ046-047-221215-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
including Agate, Hugo, Limon, Matheson, Forder, Karval, Kutch,
and Punkin Center
323 PM MDT Mon Aug 21 2017

.TONIGHT...Mostly cloudy. A 20 percent chance of thunderstorms in
the evening. Areas of fog after midnight. Lows 53 to 59. North
winds 10 to 15 mph after midnight.
.TUESDAY...Mostly cloudy in the morning then becoming partly
cloudy. Areas of fog in the morning. Highs in the lower to mid
80s. Northeast winds 10 to 15 mph shifting to the southeast in
the afternoon.
.TUESDAY NIGHT...Partly cloudy. A 10 percent chance of
thunderstorms in the evening. Lows in the 50s. South winds 10 to
15 mph.
.WEDNESDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the lower to mid 80s. South winds 10 to
15 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the mid to upper 50s.
.THURSDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs in the 80s.
.THURSDAY NIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms. Lows in the mid to upper 50s.
.FRIDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the mid to upper 80s.
.FRIDAY NIGHT AND SATURDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows in the mid 50s to lower 60s. Highs
83 to 89.
.SATURDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the mid to upper 50s.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy. Highs in the lower to
mid 80s. Lows in the mid to upper 50s.
.MONDAY...Mostly sunny. Highs in the lower to mid 80s.

$$

COZ048>051-221215-
Logan County-Washington County-Sedgwick County-Phillips County-
including Crook, Merino, Sterling, Peetz, Akron, Cope,
Last Chance, Otis, Julesburg, Ovid, Sedgwick, Amherst, Haxtun,
and Holyoke
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. A 10 percent chance of thunderstorms in
the evening. Areas of fog after midnight. Lows in the mid 50s to
lower 60s. Northeast winds 10 to 15 mph in the evening becoming
light.
.TUESDAY...Partly cloudy. Areas of fog in the morning. Highs in
the mid 80s. Southeast winds 10 to 15 mph in the afternoon.
.TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. South
winds 10 to 15 mph.
.WEDNESDAY...Partly cloudy. Highs in the mid to upper 80s. South
winds 10 to 15 mph with gusts to around 25 mph.
.WEDNESDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows in the upper 50s. South winds 10 to 15 mph.
.THURSDAY...Mostly cloudy with a 20 percent chance of
thunderstorms. Highs in the upper 80s.
.THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms. Lows near 60.
.FRIDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the upper 80s.
.FRIDAY NIGHT THROUGH SATURDAY NIGHT...Partly cloudy with a
20 percent chance of thunderstorms. Lows in the upper 50s. Highs
in the mid 80s.
.SUNDAY...Mostly sunny. Highs in the mid 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the upper 50s.
.MONDAY...Mostly sunny. Highs in the mid 80s.

$$

COZ035-036-221215-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
including Estes Park, Glendevey, Nederland, Red Feather Lakes,
Bailey, Central City, Evergreen, Georgetown, Idaho Springs,
and Westcreek
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. Slight chance of thunderstorms in the
evening. Slight chance of rain showers towards sunrise. Lows
44 to 52. Chance of precipitation 20 percent.
.TUESDAY...Partly cloudy with a slight chance of rain showers in
the morning, then mostly cloudy with a chance of thunderstorms in
the afternoon. Highs 69 to 79. Chance of precipitation
40 percent.
.TUESDAY NIGHT...Mostly cloudy. A 30 percent chance of
thunderstorms in the evening. Lows 46 to 56.
.WEDNESDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs 70 to 80.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms. Lows 46 to 56.
.THURSDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 69 to 79.
.THURSDAY NIGHT...Mostly cloudy with a 10 percent chance of
thunderstorms. Lows 46 to 56.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 71 to 81.
.FRIDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 46 to 56.
.SATURDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 70 to 80.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy with a 10 percent
chance of thunderstorms. Lows 45 to 55. Highs 70 to 80.
.SUNDAY NIGHT...Partly cloudy. Lows 45 to 55.
.MONDAY...Mostly sunny. Highs 70 to 80.

$$

COZ030-032-221215-
Jackson County Below 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
including Gould, North Park, Rand, Spicer, Walden, Dillon,
Fraser, Granby, Grand Lake, Hot Sulphur Springs, and Kremmling
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. Lows 39 to 45.
.TUESDAY...Mostly sunny in the morning, then mostly cloudy with a
30 percent chance of thunderstorms in the afternoon. Highs 73 to
79.
.TUESDAY NIGHT...Mostly cloudy. A 30 percent chance of
thunderstorms in the evening. Lows in the lower to mid 40s.
.WEDNESDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs 70 to 76.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms. Lows 41 to 47.
.THURSDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs 70 to 76.
.THURSDAY NIGHT...Mostly cloudy with a 10 percent chance of
thunderstorms. Lows 41 to 47.
.FRIDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs 72 to 78.
.FRIDAY NIGHT...Partly cloudy. Lows 41 to 47.
.SATURDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs 72 to 78.
.SATURDAY NIGHT...Partly cloudy. Lows 40 to 46.
.SUNDAY...Mostly sunny. Highs 73 to 79.
.SUNDAY NIGHT...Partly cloudy. Lows 40 to 46.
.MONDAY...Mostly sunny. Highs 73 to 79.

$$

COZ037-221215-
Central and Southeast Park County-
including Fairplay, Hartsel, Lake George, and South Park
323 PM MDT Mon Aug 21 2017

.TONIGHT...Mostly cloudy. Chance of thunderstorms in the evening,
then a slight chance of rain showers after midnight. Lows 41 to
47. Chance of precipitation 30 percent.
.TUESDAY...Mostly cloudy. Slight chance of rain showers in the
morning, then a chance of thunderstorms in the afternoon. Highs
64 to 70. Chance of precipitation 50 percent.
.TUESDAY NIGHT...Mostly cloudy. Chance of thunderstorms in the
evening, then a slight chance of thunderstorms after midnight.
Lows in the lower to mid 40s. Chance of thunderstorms 40 percent.
.WEDNESDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs 66 to 72.
.WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms. Lows 41 to 47.
.THURSDAY...Mostly cloudy with a 50 percent chance of
thunderstorms. Highs 65 to 71.
.THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 42 to 48.
.FRIDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 68 to 74.
.FRIDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 43 to 49.
.SATURDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 68 to 74.
.SATURDAY NIGHT THROUGH MONDAY...Partly cloudy with a 10 percent
chance of thunderstorms. Lows 42 to 48. Highs 68 to 74.

$$

COZ033-034-221215-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-
including Cameron Pass, Laramie and Medicine Bow Mountains,
Rabbit Ears Range, Rocky Mountain National Park,
Willow Creek Pass, Berthoud Pass, Breckenridge,
East Slopes Mosquito Range, East Slopes Southern Gore Range,
Eisenhower Tunnel, Indian Peaks, Kenosha Mountains, Mount Evans,
Williams Fork Mountains, and Winter Park
323 PM MDT Mon Aug 21 2017

.TONIGHT...Mostly cloudy in the evening then becoming partly
cloudy. Chance of thunderstorms in the evening. Slight chance of
rain showers after midnight. Lows 40 to 46. Chance of
precipitation 30 percent.
.TUESDAY...Partly cloudy with a slight chance of rain showers in
the morning, then mostly cloudy with a chance of thunderstorms in
the afternoon. Highs 60 to 70. Chance of precipitation
50 percent.
.TUESDAY NIGHT...Mostly cloudy. Chance of thunderstorms in the
evening, then a slight chance of thunderstorms after midnight.
Lows 40 to 46. Chance of thunderstorms 40 percent.
.WEDNESDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 59 to 69.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms. Lows 40 to 48.
.THURSDAY...Thunderstorms likely. Highs 58 to 68. Chance of
thunderstorms 60 percent.
.THURSDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows 39 to 47.
.FRIDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 60 to 70.
.FRIDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 40 to 48.
.SATURDAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 60 to 70.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 39 to 47.
.SUNDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 60 to 70.
.SUNDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 39 to 47.
.MONDAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 61 to 71.

$$

COZ031-221215-
West Jackson and West Grand Counties Above 9000 Feet-
including East Slopes Park and Northern Gore Ranges, Gore Pass,
and Rabbit Ears Pass
323 PM MDT Mon Aug 21 2017

.TONIGHT...Partly cloudy. A 10 percent chance of thunderstorms
early in the evening. Lows in the lower to mid 40s.
.TUESDAY...Mostly sunny in the morning, then mostly cloudy with a
30 percent chance of thunderstorms in the afternoon. Highs 69 to
77.
.TUESDAY NIGHT...Mostly cloudy. Chance of thunderstorms in the
evening, then a slight chance of thunderstorms after midnight.
Lows in the lower to mid 40s. Chance of thunderstorms 30 percent.
.WEDNESDAY...Mostly cloudy with a 40 percent chance of
thunderstorms. Highs 62 to 72.
.WEDNESDAY NIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms. Lows 41 to 47.
.THURSDAY...Mostly cloudy with a 30 percent chance of
thunderstorms. Highs 62 to 72.
.THURSDAY NIGHT...Mostly cloudy with a 10 percent chance of
thunderstorms. Lows 41 to 47.
.FRIDAY THROUGH SATURDAY...Partly cloudy with a 10 percent chance
of thunderstorms. Highs 64 to 74. Lows 41 to 47.
.SATURDAY NIGHT...Partly cloudy. Lows 41 to 47.
.SUNDAY...Mostly sunny. Highs 65 to 75.
.SUNDAY NIGHT...Partly cloudy. Lows 41 to 47.
.MONDAY...Mostly sunny. Highs 66 to 76.

$$



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