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Thursday Update: The Front Range Forecast: Fire Weather Warning one more day

In Brief:

Mild weather with above normal temperatures. High winds increase fire danger.

Thursday Update:

Winds are decreasing today but still meet red flag fire danger levels (Figure 2 update). Temperatures warm into the weekend without the wind.

Red Flag Warning

Issued: 2:17 AM Apr. 7, 2022 – National Weather Service

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 8 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR ALL OF THE PLAINS AND I-25 CORRIDOR...

* Timing...9 AM until 8 PM.

* Winds...North 30 to 40 mph with gusts up to 65 mph.

* Relative Humidity...10 to 20 percent.

* Impacts...Any fire that develops will likely spread rapidly. Outdoor burning should be avoided, as well as any activity that may produce a spark and start a fast moving wildfire.

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.

Figure2u_04072022
Figure 2 update: NWS red flag warning for Thursday.

End Thursday update.

Tuesday Update:

The NWS has issued a red flag (fire) warning for Tuesday and Wednesday for the counties in red (Figure 1 update).

Red Flag Warning

Issued: 4:00 AM Apr. 5, 2022 – National Weather Service

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
9 PM MDT THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE
NORTHEASTERN COLORADO PLAINS AND PALMER DIVIDE...


...FIRE WEATHER WATCH IN EFFECT FROM 11 AM WEDNESDAY MORNING
THROUGH 8 PM WEDNESDAY EVENING FOR WIND AND LOW RELATIVE HUMIDITY
FOR THE NORTHEASTERN COLORADO PLAINS AND PALMER DIVIDE...

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

* Timing...Tuesday, from 11 AM until 9 PM; Wednesday, from 11 AM until 10 PM.

* Winds...Northwest 30 to 40 mph with gusts up to 65 mph.

* Relative Humidity...15 to 25 percent.

* Impacts...Any fire that develops will likely spread rapidly.
Outdoor burning should be avoided, as well as any activity
that may produce a spark.

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.

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

Figure1u_04052022
Figure 1 update: the NWS red flag warning map.

 

End Tuesday Update.

Forecast Discussion:

There isn't much to cover this weekend.  A minor trough will pass over Colorado Sunday/Monday (Figure 1) kicking off a rain/snow mix in the central and southern mountains and western slopes of Colorado Sunday (Figure 2).  A bit more snow falls in the mountains Monday (Figure 3) but the Plains remain mostly dry (maybe some sprinkles??).

Figure1_04022022
Figure 1: the 500mb upper air map for Monday noon from tropicaltidbits.com and the GFS.
Figure2_04022022
Figure 2: the NWS surface map for 8am Sunday.
Figure3_04022022
Figure 3: the NWS surface map for 8am Monday.

The Longer Range Forecast:

Temperatures for the next week bounce around the upper 50s (close to normal) to the mid 70s along I-25.  The mountains and Palmer Divide get some moisture, but snowfall will be confined to the higher elevations.  Enjoy Spring as it begins!

Figure4_04022022
Figure 4: the 5 day precipitation forecast from the GFS and weather5280.com
Figure5_04022022
Figure 5: the 5 day snowfall (10:1 ratio) forecast from the GFS and weather5280.com

 


About the Author: John Ensworth

John Ensworth used to work from Longmont as the PI for the NASA through the IGES (The Institute for Global Environmental Strategies). He now teaches technology, algebra, astronomy, meteorology, film school, and Lego robotics to middle/high school.
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Current Weather

Cloudy

Cloudy

46°F

UV Index
0 Low
Pressure
29.64 Rising
Visibility
8 miles
Dewpoint
29 °F
Humidity
53%
Wind
NNW 2.1 mph
Gust
6.9 mph
Wind Chill
46 °F

Hourly Forecast

Today
4 PM
45°F
Showers
Today
5 PM
43°F
Cloudy
Today
6 PM
41°F
Partly cloudy
Today
7 PM
39°F
Flurries
Today
8 PM
37°F
Flurries
Today
9 PM
34°F
Flurries
Today
10 PM
32°F
Cloudy
Today
11 PM
31°F
Cloudy
Tomorrow
12 AM
29°F
Flurries
Tomorrow
1 AM
28°F
Cloudy
Tomorrow
2 AM
27°F
Cloudy
Tomorrow
3 AM
26°F
Cloudy

7 Day Forecast

Partly sunny w/ showers

Friday

46 °F

Milder with intervals of clouds and sunshine; a passing afternoon shower or two


Snow

Friday Night

26 °F

Snow and flurries this evening with little or no accumulation; otherwise, overcast


Flurries

Saturday

32 °F

Low clouds and colder with a little snow, accumulating a coating to an inch


Flurries

Saturday Night

16 °F

A little evening snow, accumulating a coating to an inch; otherwise, cloudy


Mostly cloudy

Sunday

34 °F

Mostly cloudy and cold


Flurries

Sunday Night

21 °F

Cloudy with a few stray snowflakes


Flurries

Monday

30 °F

Cloudy and cold with a few flurries


Snow

Monday Night

5 °F

Snow and flurries at times in the evening; otherwise, cloudy and frigid


Snow

Tuesday

16 °F

Low clouds and colder; snow and flurries at times in the afternoon


Snow

Tuesday Night

2 °F

Frigid with snow and flurries at times


Sunrise and Sunset

Sunrise
6:55 AM
Sunset
5:35 PM

Based on AccuWeather data