Watches, Warnings & Advisories



3 products issued by NWS for: Arvada CO

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1101 AM MDT Sun Jun 16 2024

COZ030>051-171715-
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-
1101 AM MDT Sun Jun 16 2024

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

.DAY ONE...Today and Tonight

Critical fire weather conditions are likely across Middle and
SoutH Park, and along the Palmer Divide into the plains southeast
of Denver this afternoon. A Heat Advisory is also in effect for
the southeast Denver metro into Lincoln county this afternoon. A
strong storm or two is possible over far northeast Colorado later
this evening, with large hail and gusty winds possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday

Hot and mainly dry weather will continue on Monday with well above
normal temperatures across the urban corridor and plains.
widespread critical fire weather is likely Monday afternoon. A
cold front will bring cooler temperatures for the plains on
Tuesday which will continue on Wednesday. There will be a chance
of thunderstorms mainly over the higher terrain on Wednesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

$$




Air Quality Alert

COC013-123-001-031-059-035-005-014-069-172200-
Boulder-Weld-Adams-Denver-Jefferson-Douglas-Arapahoe-
Broomfield-Larimer-
410 PM MDT Sun Jun 16 2024

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

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 Sunday June 16 to 400 PM Monday June 17

IMPACTS...Ozone Action Day Alert is now in effect for the Front
Range Urban Corridor. Request to limit driving gas and diesel-
powered vehicles is now in effect until at least 4 p.m. Monday,
June 17, 2024.  Hot and sunny weather may allow ozone
concentrations to reach the Unhealthy for Sensitive Groups
category on Sunday and Monday. The highest concentrations are
expected in the southwestern and western portions of the Denver
Metro area, including locations in the 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
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.

$$




Fire Weather Watch

URGENT - FIRE WEATHER MESSAGE
National Weather Service Denver/Boulder CO
242 PM MDT Sun Jun 16 2024

COZ239-240-243>245-249-171200-
/O.NEW.KBOU.FW.A.0008.240617T1700Z-240618T0300Z/
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-
Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-Washington County-
242 PM MDT Sun Jun 16 2024

...FIRE WEATHER WATCH IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE DENVER
METRO, GREELEY, AND PORTIONS OF THE NORTHEASTERN PLAINS...

The National Weather Service in Denver has issued a Fire Weather
Watch for wind and low relative humidity, which is in effect from
Monday morning through Monday evening.

* Affected Area...Fire Weather Zones 239, 240, 243, 244, 245 and
  249.

* Timing...11 AM Monday morning until 9 PM MDT Monday evening.

* Winds...South 10 to 20 mph with gusts up to 35 mph.

* Relative Humidity...As low as 11 percent.

* Impacts...Conditions may be favorable for rapid fire spread.
  Avoid outdoor burning and any activity that may produce a spark
  and start a wildfire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$