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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
359 AM MDT Thu Aug 11 2022

COZ030>051-121000-
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-
359 AM MDT Thu Aug 11 2022

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

.DAY ONE...Today and Tonight

Slightly warmer across the plains with high temperatures from the
90s to near 100 degrees. Scattered showers and thunderstorms are
expected over the mountains, mainly along and west of the
Continental Divide. Brief rain and gusty winds will be the main
impacts. There is a limited threat of flash flooding, mainly over
East Troublesome, Williams Fork, and the far western portions of
the Cameron Peak burn scars.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

Through this weekend, expect very warm temperatures to continue
and scattered storms will bring a limited threat of burn area
flash flooding. Early next week, storm coverage and intensity will
significantly increase as will the threat of burn area flash
flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$



Air Quality Alert

COC013-123-001-031-059-035-005-014-069-112200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Wed Aug 10 2022

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

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 Wednesday August 10 to 400 PM Thursday August 11

IMPACTS...Ozone Action Day Alert 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. Thursday, August 11, 2022.  Ozone concentrations in the
Unhealthy for Sensitive Groups are likely both Wednesday and
Thursday during the afternoon and evening hours. On Wednesday,
ozone concentrations in the Unhealthy for Sensitive Groups
category will be most likely for locations in and near the Denver
Metro area, as well as northward along the Front Range and lower
foothills to include Boulder, Longmont, and Fort Collins. On
Thursday, this area will expand to include southern parts of Weld
County. 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
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.

$$



U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
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