Hazardous Weather Outlook
Issued by NWS Denver/Boulder, CO

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

FLUS45 KBOU 191659

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1059 AM MDT Wed Jul 19 2017

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
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
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1059 AM MDT Wed Jul 19 2017

This hazardous weather outlook is for northeast and north central

.DAY ONE...Today and Tonight

Scattered thunderstorms are expected to form over the higher
terrain today. A few storms should move onto the urban corridor
and eastern plains. Gusty outflow winds will be common with the
storms. Wind gusts to 50 mph and heavy rain will be possible with
the stronger storms.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

The center of the upper ridge will shift over the central plains
states Thursday and Friday. This will allow sub-tropical moisture
into the area for a better chance of showers and thunderstorms to
spread across the mountains and adjacent plains with locally
heavy rainfall possible. A few disturbances moving over the plains
will allow for stronger storms to be possible each afternoon, with
large hail and strong outflow possible. Over the weekend, a drier
westerly flow aloft will shift the plume of moisture into eastern
and southern Colorado. By early next week, a weak southwesterly
flow over the desert southwest will allow for the sub-tropical
moisture plume to move back into western Colorado. The best a
chance of showers and thunderstorms at that time will be back over
the mountains, with lesser coverage across the northeast plains.


Spotter activation will not be needed today or tonight.


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.