Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

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HWOBOU

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
512 AM MDT Tue Aug 22 2017

COZ030>051-231115-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
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-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-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
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-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
512 AM MDT Tue Aug 22 2017

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Scattered thunderstorms will develop across the high country by
this afternoon, with the highest coverage expected across the
Front Range Mountains and Foothills, and Park county. On the
plains, the airmass will be more stable, but there is still a
chance of thunderstorms developing with the aid of a Denver
convergence zone. At this time, this is expected to set up across
the Denver metro area allowing for a chance of thunderstorms by
late afternoon and evening. Enough instability will be present for
stronger storms to produce brief heavy rain, gusty winds,
frequent lightning, and some hail. However, wind shear profiles
are too weak today to support any organized severe threat.

Morning travelers should be alert for patchy dense fog, and rapidly
changing visibilities and traffic speeds through 8 AM. Most of
the fog will occur over higher ridges including I-25 over Monument
Hill.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Thunderstorms will increase in coverage Wednesday and Thursday as
more subtropical moisture pushes into the area. Thursday could
see locally heavy rainfall from some of the storms. Friday will be
drier with less thunderstorm activity.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$



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