Hazard Report Provided By forecast.weather.gov

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1044 AM MDT Tue Jul 1 2025

COZ030>051-021645-
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-
1044 AM MDT Tue Jul 1 2025

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

.DAY ONE...Today and Tonight

Isolated to scattered showers and thunderstorms will develop over
the mountains and foothills by the noon hour, and then push onto
the plains mid to late afternoon. The main hazard will be strong,
gusty outflow winds. Most showers and storms will produce gusty
and erratic gusts to 35-50 mph, but a couple storms over the
northeast plains could produce gusts to 60 mph or more.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Wednesday will be drier and hot. Highs will push into the mid 90s
over most of the plains. Only a few afternoon showers or weak
storms with gusty winds will be confined to the mountains.

More active weather and at least scattered thunderstorm coverage is
expected by Thursday. A couple of those storms may become severe.
The chance of thunderstorms will linger into Friday, the Fourth
of July, and the Independence Day weekend, but coverage is
expected to decrease for this period.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$

COC123-001-035-069-005-013-031-059-014-022200-
Weld-Adams-Douglas-Larimer-Arapahoe-Boulder-Denver-
Jefferson-Broomfield-
410 PM MDT Tue Jul 1 2025

...OZONE ACTION DAY ALERT FROM 400 PM TUESDAY UNTIL 400 PM
WEDNESDAY...

The Colorado Department of Public Health and Environment has
issued the following...

WHAT...Ozone Action Day Alert.

WHERE...Douglas, Jefferson, Denver, western Arapahoe, western
Adams, Broomfield, Boulder, Larimer, and Weld Counties

WHEN...400 PM Tuesday July 01 to 400 PM Wednesday July 02

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor.  Hot and stagnant weather conditions will
result in ozone concentrations reaching the Unhealthy for
Sensitive Groups category on both Tuesday and Wednesday during the
afternoon and evening hours. For Colorado air quality conditions,
forecasts, and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx   If
possible, please help us reduce ozone pollution by limiting
driving gas and diesel-powered vehicles until at least 4 p.m.
Wednesday, July 2, 2025. Colorado is also addressing ozone
pollution through state policies. For more information about
health impacts and how ozone pollution forms in Colorado, visit:
https://cdphe.colorado.gov/ozone- pollution-and-your-health

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
and breathing discomfort in active children and adults and people
with lung disease, such as asthma. Active children and adults, and
people with lung disease, such as asthma, should reduce prolonged
or heavy outdoor exertion.

$$

Hazard Report Provided By forecast.weather.gov