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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1042 AM MDT Mon Jun 17 2019

COZ030>051-181645-
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-
1042 AM MDT Mon Jun 17 2019

...Severe thunderstorms possible over the Northeast plains of
Colorado this afternoon and evening...

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

.DAY ONE...Today and Tonight

Showers and thunderstorms will develop over the mountains and
foothills around the noon hour, and then spread eastward across
the Interstate 25 corridor and adjacent areas between 1 and 3 pm.
Storms will then move across the rest of the northeast plains
through late afternoon and evening.

There will be a slight risk of severe thunderstorms over the
northeast plains this afternoon and evening. Large hail up to 2
inches, heavy rain and damaging wind in excess of 60 mph will be
the main threats. The greatest severe threat will be along and
east of a line from around Greeley to Byers to Monument. Locally
heavy rainfall could produce urban and small stream flooding as
well.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Tuesday will be another convective day but with weaker
thunderstorms expected due to cooler temperatures. The storms will
have the potential to produce gusty winds, small hail, but more
are expected to produce heavy rainfall. The threat of flooding
looks lower however due to weaker storms.

Wednesday will be warmer and drier, with Thursday and Friday
seeing a return to more convection especially near the northern
state border. For this weekend, a continued pattern of diurnal
thunderstorms each day will occur with temperatures below normal
under the influence of an upper trough pushing into the region.
There will be a risk of severe storms as the jet ahead of the
trough spreads over the area.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed after 1 pm this afternoon across
the northeast plains of Colorado, especially east of the
Interstate 25 corridor.

$$



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NOAA National Weather Service
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