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2 products issued by NWS for: 2 Miles SSW Mount Audubon CO
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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1055 AM MDT Tue Aug 11 2020

COZ030>051-121700-
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-
1055 AM MDT Tue Aug 11 2020

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

.DAY ONE...Today and Tonight

High temperatures will be well into the 90s across the urban
corridor and northeast plains this afternoon. Isolated high based
thunderstorms will be possible along and west of the urban
corridor. The storms may produce brief strong and gusty winds but
little if any rainfall. The fire danger will remain high due to
hot temperatures and persistent dry conditions.

There will be a marginal risk of severe thunderstorms over the
northeast plains between 1 and 5 PM. The best chance will occur
east of a line extending from Sterling to Akron to Limon. One or
two storms there could produce damaging wind gusts to 60 mph and
hail up to quarter size.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Hot and mainly dry weather will keep the fire danger elevated
through the period. The best chance thunderstorms each afternoon
and evening will be over the mountains and over the far eastern
plains, but most areas will remain dry.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today and tonight.

$$



Air Quality Alert

COC013-123-001-031-059-035-005-014-069-122200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Tue Aug 11 2020

...ACTION DAY FOR MULTIPLE POLLUTANTS FROM 400 PM TUESDAY UNTIL
400 PM WEDNESDAY...

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

WHAT...Action Day for Multiple Pollutants.

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

WHEN...400 PM Tuesday August 11 to 400 PM Wednesday August 12

IMPACTS...Action Day for Multiple Pollutants is now in effect for
the Front Range Urban Corridor. Requests to limit driving of non-
ZEV vehicles (i.e., gas or diesel) are now in effect until at
least 4 p.m. Wednesday, August 12, 2020.  Due to the influence of
wildfire smoke transported into the Front Range, Ozone and Fine
Particulate concentrations could both reach the Unhealthy for
Sensitive Groups category at times through Wednesday afternoon
across the northern Colorado Front Range region. The greatest air
quality impacts are expected to be in locations within the Denver
Metro area, as well as northward along the I-25 corridor to
Longmont, including areas west of I-25 within the lower
foothills.For areas included in this advisory that are not
expected to reach the Unhealthy for Sensitive Groups (USG) air
quality designation, we request that activities, such as driving
non-ZEV vehicles (i.e., gas or diesel), be reduced to lessen the
impacts on neighboring air quality. Additional air pollution in
this region may directly worsen air quality or contribute to
precursors which may also adversely affect air quality. For
Colorado air quality conditions, forecasts and advisories, visit:
https://www.colorado.gov/airquality/colorado_summary.aspx

HEALTH INFORMATION...Increasing likelihood of respiratory symptoms
in sensitive individuals, aggravation of heart or lung disease and
premature mortality in people with cardiopulmonary disease and
older adults. People with heart or lung disease, older adults, and
children should reduce prolonged or heavy exertion.

$$



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
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