Zone Forecast Product
Issued by NWS Denver/Boulder, CO

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FPUS55 KBOU 221629 AAA
ZFPBOU

Zone Forecast Product for Northeast Colorado...UPDATED
National Weather Service Denver/Boulder CO
1029 AM MDT Tue May 22 2018

...Late morning update for less afternoon thunderstorm activity on
the plains today...

COZ038-230715-
Larimer County Below 6000 Feet/Northwest Weld County-
including Fort Collins, Hereford, Loveland, and Nunn
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of thunderstorms late in the
afternoon. Highs in the mid to upper 70s. Southeast winds 10 to
15 mph in the afternoon. Chance of thunderstorms 30 percent.
.TONIGHT...Mostly cloudy with a 30 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 40s.
.WEDNESDAY...Partly cloudy. A 20 percent chance of thunderstorms
in the afternoon. Highs 75 to 81. South winds 10 to 15 mph in the
afternoon.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows near 50.
.THURSDAY...Mostly sunny. Highs 79 to 85.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.FRIDAY...Mostly sunny. Highs 82 to 88.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.SATURDAY...Mostly sunny. Highs 83 to 89.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the lower to mid 50s.
.SUNDAY...Partly cloudy. Highs 81 to 87.
.SUNDAY NIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms. Lows near 50.
.MEMORIAL DAY...Partly cloudy with a 20 percent chance of
thunderstorms. Highs 75 to 81.

$$

COZ039-040-230715-
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
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. A 20 percent chance of
thunderstorms in the afternoon. Highs near 80.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows near 50.
.WEDNESDAY...Partly cloudy. A 10 percent chance of thunderstorms
in the afternoon. Highs near 80. Southwest winds 10 to 15 mph in
the afternoon.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.THURSDAY...Partly cloudy. Highs in the 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Mostly sunny. Highs near 90.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows in the
mid 50s. Highs in the mid 80s to lower 90s.
.MEMORIAL DAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs 78 to 84.

$$

COZ041-230715-
Elbert/Central and East Douglas Counties Above 6000 Feet-
including Castle Rock, Elbert, Fondis, Kiowa, and Larkspur
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. A 10 percent chance of
thunderstorms late in the afternoon. Highs 75 to 81. South winds
10 to 20 mph with gusts to around 30 mph in the afternoon.
.TONIGHT...Partly cloudy. A 10 percent chance of thunderstorms in
the evening. Lows in the mid 40s to lower 50s. South winds 10 to
20 mph.
.WEDNESDAY...Mostly sunny. A 10 percent chance of thunderstorms
in the afternoon. Highs 75 to 83. South winds 10 to 20 mph. Gusts
up to 30 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows near 50.
.THURSDAY...Partly cloudy. Highs 78 to 86.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.FRIDAY...Mostly sunny. Highs 80 to 88.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.SATURDAY...Mostly sunny. Highs 82 to 90.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 48 to
55. Highs 82 to 88.
.MEMORIAL DAY...Partly cloudy. Highs 76 to 82.

$$

COZ042>045-230715-
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
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. A 10 percent chance of
thunderstorms late in the afternoon. Highs near 80. Southeast
winds 10 to 15 mph with gusts to around 25 mph in the afternoon.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows in the lower 50s. Southeast winds 10 to 15 mph
with gusts to around 25 mph in the evening becoming light.
.WEDNESDAY...Partly cloudy. A 10 percent chance of thunderstorms
in the afternoon. Highs in the lower to mid 80s. South winds
10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the lower 50s.
.THURSDAY...Mostly sunny. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.FRIDAY...Mostly sunny. Highs in the mid to upper 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the lower to mid 50s.
.SATURDAY...Mostly sunny. Highs near 90.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the 50s.
Highs in the mid to upper 80s.
.SUNDAY NIGHT AND Memorial Day...Partly cloudy with a 10 percent
chance of thunderstorms. Lows in the lower to mid 50s. Highs in
the lower to mid 80s.

$$

COZ048>051-230715-
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
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. A 10 percent chance of
thunderstorms late in the afternoon. Highs in the lower to mid
80s. Southeast winds 10 to 20 mph in the afternoon.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows in the lower to mid 50s. South winds 10 to
20 mph.
.WEDNESDAY...Mostly sunny. A 20 percent chance of thunderstorms
in the afternoon. Highs in the lower to mid 80s. South winds
10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows in the lower to mid 50s. South winds 10 to
15 mph with gusts to around 25 mph.
.THURSDAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs in the 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.FRIDAY THROUGH SATURDAY...Mostly clear. Highs 85 to 90. Lows in
the mid 50s.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy. Lows in the mid 50s.
Highs in the upper 80s.
.SUNDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the mid 50s.
.MEMORIAL DAY...Partly cloudy with a chance of rain showers and
slight chance of thunderstorms. Highs in the lower 80s. Chance of
precipitation 30 percent.

$$

COZ046-230715-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
including Agate, Hugo, Limon, and Matheson
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Mostly cloudy late in the morning then becoming
partly cloudy. A 10 percent chance of thunderstorms late in the
afternoon. Highs around 80. South winds 10 to 15 mph increasing
to 20 to 25 mph in the afternoon.
.TONIGHT...Partly cloudy. A 20 percent chance of thunderstorms in
the evening. Lows near 50. South winds 15 to 25 mph.
.WEDNESDAY...Mostly sunny. A 10 percent chance of thunderstorms
in the afternoon. Highs in the lower 80s. South winds 10 to
20 mph. Gusts up to 30 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the lower 50s. South winds 10 to 15 mph
with gusts to around 25 mph.
.THURSDAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs in the lower to mid 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.FRIDAY...Mostly sunny. Highs in the 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.SATURDAY...Mostly sunny. Highs in the mid to upper 80s.
.SATURDAY NIGHT...Partly cloudy. Lows in the mid 50s.
.SUNDAY...Mostly sunny. Highs in the mid to upper 80s.
.SUNDAY NIGHT...Partly cloudy. Lows in the lower 50s.
.MEMORIAL DAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs near 80.

$$

COZ047-230715-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
including Forder, Karval, Kutch, and Punkin Center
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Mostly cloudy late in the morning then becoming
partly cloudy. A 10 percent chance of thunderstorms late in the
afternoon. Highs in the lower 80s. South winds 15 to 25 mph.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 47 to 53. South winds 10 to 20 mph. Gusts up to 30 mph in
the evening.
.WEDNESDAY...Mostly sunny. A 10 percent chance of thunderstorms
in the afternoon. Highs in the mid 80s. South winds 15 to 25 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows in the lower to mid 50s. South winds 10 to
15 mph with gusts to around 25 mph.
.THURSDAY...Mostly sunny. Highs in the upper 80s.
.THURSDAY NIGHT...Partly cloudy. Lows in the 50s.
.FRIDAY...Mostly sunny. Highs in the upper 80s.
.FRIDAY NIGHT...Partly cloudy. Lows in the 50s.
.SATURDAY...Mostly sunny. Highs in the lower 90s.
.SATURDAY NIGHT...Partly cloudy. Lows in the 50s.
.SUNDAY...Mostly sunny. Highs near 90.
.SUNDAY NIGHT...Partly cloudy. Lows in the 50s.
.MEMORIAL DAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs in the 80s.

$$

COZ035-230715-
Larimer and Boulder Counties Between 6000 and 9000 Feet-
including Estes Park, Glendevey, Nederland, and Red Feather Lakes
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 40 percent chance of thunderstorms in the
afternoon. Highs 62 to 72.
.TONIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 39 to 47.
.WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with
a 20 percent chance of thunderstorms in the afternoon. Highs
63 to 73. South winds 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 39 to 49.
.THURSDAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs 67 to 77.
.THURSDAY NIGHT...Partly cloudy. Lows 41 to 51.
.FRIDAY...Mostly sunny. Highs 70 to 80.
.FRIDAY NIGHT...Partly cloudy. Lows 41 to 51.
.SATURDAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs 72 to 82.
.SATURDAY NIGHT AND SUNDAY...Partly cloudy with a 20 percent
chance of thunderstorms. Lows 41 to 51. Highs 70 to 80.
.SUNDAY NIGHT...Partly cloudy with a chance of rain showers and
slight chance of thunderstorms. Lows 40 to 50. Chance of
precipitation 30 percent.
.MEMORIAL DAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 64 to 74.

$$

COZ036-230715-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
including Bailey, Central City, Evergreen, Georgetown,
Idaho Springs, and Westcreek
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy. Slight chance of thunderstorms
early in the afternoon. Chance of thunderstorms late in the
afternoon. Highs 65 to 75. Chance of thunderstorms 30 percent.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 40 to 48.
.WEDNESDAY...Partly cloudy. A 10 percent chance of thunderstorms
in the afternoon. Highs 66 to 76. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Partly cloudy with a 10 percent chance of rain
showers. Lows 41 to 51.
.THURSDAY...Partly cloudy. Highs 69 to 79.
.THURSDAY NIGHT...Partly cloudy. Lows 43 to 53.
.FRIDAY...Mostly sunny. Highs 72 to 82.
.FRIDAY NIGHT...Partly cloudy. Lows 45 to 53.
.SATURDAY...Mostly sunny. Highs 75 to 85.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 43 to
52. Highs 74 to 84.
.MEMORIAL DAY...Partly cloudy with a 10 percent chance of
thunderstorms. Highs 67 to 77.

$$

COZ037-230715-
Central and Southeast Park County-
including Fairplay, Hartsel, Lake George, and South Park
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 20 percent chance of thunderstorms in the
afternoon. Highs 61 to 67. South winds 10 to 15 mph with gusts to
around 25 mph in the afternoon.
.TONIGHT...Mostly cloudy with a 20 percent chance of
thunderstorms in the evening, then mostly clear after midnight.
Lows near 40. South winds 10 to 15 mph in the evening becoming
light.
.WEDNESDAY...Partly cloudy. A 10 percent chance of thunderstorms
in the afternoon. Highs 62 to 68. Southwest winds 10 to 15 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows 34 to 42.
.THURSDAY...Mostly sunny. Highs 66 to 72.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 35 to 43. Highs
69 to 75.
.FRIDAY NIGHT...Partly cloudy. Lows 36 to 44.
.SATURDAY...Mostly sunny. Highs 71 to 77.
.SATURDAY NIGHT THROUGH SUNDAY NIGHT...Partly cloudy. Lows 35 to
45. Highs 69 to 75.
.MEMORIAL DAY...Mostly sunny. Highs 65 to 71.

$$

COZ030-230715-
Jackson County Below 9000 Feet-
including Gould, North Park, Rand, Spicer, and Walden
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 40 percent chance of thunderstorms in the
afternoon. Highs in the mid to upper 60s.
.TONIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 30s.
.WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with
a 10 percent chance of thunderstorms in the afternoon. Highs in
the 60s. Southwest winds 10 to 20 mph.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 30s.
.THURSDAY...Mostly sunny. Highs near 70. Southwest winds 10 to
15 mph.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 34 to 39.
Highs 70 to 77.
.SATURDAY NIGHT...Partly cloudy. Lows 35 to 41.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs in the lower to mid 70s. Lows in the mid
to upper 30s.
.MEMORIAL DAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs in the mid to upper 60s.

$$

COZ032-230715-
Grand and Summit Counties Below 9000 Feet-
including Dillon, Fraser, Granby, Grand Lake,
Hot Sulphur Springs, and Kremmling
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 30 percent chance of thunderstorms in the
afternoon. Highs 65 to 73.
.TONIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 30s.
.WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with
a 10 percent chance of thunderstorms in the afternoon. Highs
64 to 72. Southwest winds 10 to 15 mph in the afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 30s.
.THURSDAY...Mostly sunny. Highs 67 to 77.
.THURSDAY NIGHT THROUGH SATURDAY...Mostly clear. Lows 36 to 42.
Highs 72 to 82.
.SATURDAY NIGHT...Partly cloudy. Lows 36 to 42.
.SUNDAY...Mostly sunny. Highs 71 to 81.
.SUNDAY NIGHT...Partly cloudy. Lows in the mid 30s to lower 40s.
.MEMORIAL DAY...Mostly sunny with a 30 percent chance of
thunderstorms. Highs 67 to 77.

$$

COZ033-034-230715-
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
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 40 percent chance of thunderstorms in the
afternoon. Highs 52 to 62.
.TONIGHT...Mostly cloudy with a 50 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows 33 to 39.
.WEDNESDAY...Mostly sunny with a slight chance of snow showers in
the morning, then mostly cloudy with a chance of thunderstorms in
the afternoon. Highs 52 to 62. Southwest winds 10 to 15 mph with
gusts to around 25 mph. Chance of precipitation 30 percent.
.WEDNESDAY NIGHT...Partly cloudy with a 20 percent chance of
thunderstorms. Lows 33 to 41.
.THURSDAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs 55 to 65.
.THURSDAY NIGHT AND FRIDAY...Mostly clear. Lows 34 to 42. Highs
59 to 69.
.FRIDAY NIGHT...Partly cloudy. Lows 36 to 44.
.SATURDAY...Mostly sunny with a 10 percent chance of
thunderstorms. Highs 61 to 71.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 36 to 44.
.SUNDAY...Partly cloudy with a chance of rain showers and slight
chance of thunderstorms. Highs 59 to 69. Chance of precipitation
30 percent.
.SUNDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 34 to 42.
.MEMORIAL DAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 54 to 64.

$$

COZ031-230715-
West Jackson and West Grand Counties Above 9000 Feet-
including East Slopes Park and Northern Gore Ranges, Gore Pass,
and Rabbit Ears Pass
1029 AM MDT Tue May 22 2018

.REST OF TODAY...Partly cloudy late in the morning, then mostly
cloudy with a 40 percent chance of thunderstorms in the
afternoon. Highs 55 to 65.
.TONIGHT...Mostly cloudy with a 40 percent chance of
thunderstorms in the evening, then partly cloudy after midnight.
Lows in the upper 30s.
.WEDNESDAY...Mostly sunny in the morning, then mostly cloudy with
a 10 percent chance of thunderstorms in the afternoon. Highs
53 to 63. Southwest winds 10 to 20 mph. Gusts up to 30 mph in the
afternoon.
.WEDNESDAY NIGHT...Mostly clear. Lows 34 to 40.
.THURSDAY...Mostly sunny. Highs 57 to 67.
.THURSDAY NIGHT THROUGH FRIDAY NIGHT...Mostly clear. Lows 35 to
42. Highs 60 to 70.
.SATURDAY...Sunny. Highs 62 to 72.
.SATURDAY NIGHT...Partly cloudy with a 10 percent chance of
thunderstorms. Lows 37 to 43.
.SUNDAY AND SUNDAY NIGHT...Partly cloudy with a 20 percent chance
of thunderstorms. Highs 60 to 70. Lows in the mid to upper 30s.
.MEMORIAL DAY...Partly cloudy with a 30 percent chance of
thunderstorms. Highs 55 to 65.

$$



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