From Chief Meteorlogist Steve Hamilton:
Warm And Breezy Wednesday, Then A Cold Front Arrives...
High pressure will stick around for one more day, with warm and breezy conditions expected on Wednesday. Late Wednesday, a cold front will approach from the northwest, moving across the foothills. Moist air will come in behind the cold front, with increasing clouds Wednesday night. By Thursday, temperatures will decrease a bit, with cooler high pressure entering the state. Showers and thunderstorms will be possible by Thursday afternoon. Cooler temperatures prevail on Friday, with pretty good chances of precipitation through Friday afternoon. Enough moist air should linger into the weekend to provide a few afternoon showers or thunderstorms Saturday and Sunday.
Details:
mymountaintown.com/expert-local-weather
Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Denver/Boulder CO
804 PM MDT Tue Jun 16 2020
...HOT AND WINDY TODAY AND WEDNESDAY...
.On Wednesday, the winds will not be as strong, but it will be drier, with humidities as low as 8 percent. In the areas with greener grass, there is still potential for fires to move quickly due to the wind, but the fuel moisture will reduce this potential.
COZ214-171200-
/O.CON.KBOU.FW.W.0015.200617T1800Z-200618T0200Z/
Central and Southeast Park County-
804 PM MDT Tue Jun 16 2020
...
RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT WEDNESDAY FOR WIND AND LOW RELATIVE HUMIDITY FOR SOUTH PARK...
* Affected Area...Fire Weather Zone 214.
* Winds...Southwest 10 to 20 mph with gusts up to 35 mph.
* Timing...Conditions will be worst Wednesday afternoon and improve Wednesday evening.
* Relative Humidity...As low as 11 percent.
* Impacts...Fires will start easily and spread rapidly.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
_ _ _ _ _ _ _ _
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 Tue Jun 16 2020
...
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 June 16 to 400 PM Wednesday June 17
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. Wednesday, June 17, 2020. The presence of widespread wildfire smoke throughout the state, along with light winds and abundant sunshine, is expected to result in concentrations of ozone that are Unhealthy for Sensitive Groups on Wednesday. Concentrations of ozone in the Unhealthy for Sensitive Groups category are most likely for locations in the western portions of the Denver Metro area, as well as northward along the Front Range and lower foothills to include western portions of Boulder, Longmont, and Fort Collins. 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:
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.