weather.gov     
National Weather Service

Watches, Warnings & Advisories
NWS Homepage

2 products issued by NWS for: 2 Miles NNW Fort Collins CO
Share |


Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1106 AM MDT Tue Jun 15 2021

COZ030>051-161715-
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-
1106 AM MDT Tue Jun 15 2021

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

.DAY ONE...This Afternoon and Tonight

The airmass today will remain hot today with temperatures well
above seasonal normals. Isolated showers and thunderstorms can be
expected for Park and southern Jefferson Counties also well as
for the Palmer Ridge late this afternoon into early evening.
Small hail and wind gusts to 40 mph are possible with the storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Hot and dry conditions are expected over the next few days, with the
potential for record breaking heat Wednesday and Thursday. High
temperatures on the plains will be close to 100 degrees. A cool
front will bring some relief to the heat on Friday. Moisture may
begin to increase for the latter half of the week, which would
bring the return of isolated thunderstorms on Wednesday with
increasing coverage Friday and into the weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated today or tonight.

$$




Air Quality Alert

COC013-123-001-031-059-035-005-014-069-152200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Mon Jun 14 2021

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

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 Monday June 14 to 400 PM Tuesday June 15

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. Tuesday, June 15, 2021.  Ozone concentrations are expected to
be in the Moderate to Unhealthy for Sensitive Groups range on
Monday and Tuesday. Concentrations of ozone in the Unhealthy for
Sensitive Groups category are most likely for locations in the
southern and western portions of the Denver Metro area, and
northward along the Front Range and lower foothills to include
Boulder, Longmont, Fort Collins, and Greeley.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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE