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Colorado, Larimer County Below 6000 Feet/Northwest Weld County

Fire Weather Warning

Statement as of 2:36 AM MDT on September 19, 2017

Expires 10:00 PM EDT on September 19, 2017


... Red flag warning remains in effect from 11 am this morning to
8 PM MDT this evening for wind and low relative humidity for
the north central mountains, foothills, South Park and the Palmer
Divide...

* affected area... fire weather zones 212... 213... 214... 215...
216... 238... 241... 246 and 247.

* Timing... Tuesday. 11 am through 8 PM.

* Winds... southwest 20 to 30 mph with gusts up to 50 mph.

* Relative humidity... as low as 10 percent.

* Impacts... gusty winds and low relative humidity will result in
critical fire weather conditions. Very windy conditions with
relative humidities around 10 percent may result in extreme fire
weather conditions for areas in and near the foothills and over
the Palmer Divide.

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.




Public Information Statement

Statement as of 2:59 AM MDT on September 19, 2017

Expires 7:00 PM EDT on September 19, 2017


... Today in Metro Denver weather history...

15-19 in 1906... rain on 5 consecutive days totaled 1.61 inches.
        A thunderstorm occurred on the 17th. High temperatures
        ranged from 48 degrees on the 16th to 65 degrees on the
        15th. Low temperatures were in the lower to mid 40's.
16-19 in 1971... a record breaking early fall snow storm caused
        extensive damage to trees and utility lines. The heavy wet
        snow occurred with little wind... but caused record breaking
        cold temperatures for so early in the season. Snowfall
        totaled 15.6 inches at Stapleton International Airport
        with most of the snowfall... 12.0 inches... occurring on the
        17th. This was the heaviest first snow of the season.
        The maximum snow depth on the ground was 13 inches.
        Record low temperatures were set on three consecutive days:
        31 degrees on the 17th... 23 degrees on the 18th... and 20
        degrees on the 19th... which was also a new all-time record
        minimum for the month at that time. Record low maximum
        temperatures were set on 4 consecutive days: 48 degrees
        on the 16th... 35 degrees on the 17th... 40 degrees on the 18th...
        and 42 degrees on the 19th.
18-19 in 1955... heavy rains caused flash flooding across portions of
        Metro Denver. Rainfall totaled 1.71 inches at Stapleton
        Airport.
19 in 1955... hail stones to 2 1/2 inches in diameter were
        reported north of Denver. The large stones broke many
        automobile windshields.
      In 1963... hail to 3/4 inch in diameter fell in Westminster.
      In 1983... an unusually strong cold front roared through
        Metro Denver during the afternoon hours. At Stapleton
        International Airport... the temperature dropped 51 degrees...
        from a sunny 86 degrees to a snowy 35 degrees... in just 7
        hours. Strong winds and a wall of blowing dust followed
        the front. Northeast winds gusting to 36 mph briefly
        reduced the surface visibility to 1 mile in blowing dust
        at Stapleton International Airport where only a trace of
        snow fell later.
      In 1996... high winds gusting to 84 mph were measured at
        Golden Gate Canyon in the foothills west of Denver.
        West winds gusted to only 25 mph at Denver International
        Airport.



259 am MDT Tue Sep 19 2017

... Today in Metro Denver weather history...

15-19 in 1906... rain on 5 consecutive days totaled 1.61 inches.
        A thunderstorm occurred on the 17th. High temperatures
        ranged from 48 degrees on the 16th to 65 degrees on the
        15th. Low temperatures were in the lower to mid 40's.
16-19 in 1971... a record breaking early fall snow storm caused
        extensive damage to trees and utility lines. The heavy wet
        snow occurred with little wind... but caused record breaking
        cold temperatures for so early in the season. Snowfall
        totaled 15.6 inches at Stapleton International Airport
        with most of the snowfall... 12.0 inches... occurring on the
        17th. This was the heaviest first snow of the season.
        The maximum snow depth on the ground was 13 inches.
        Record low temperatures were set on three consecutive days:
        31 degrees on the 17th... 23 degrees on the 18th... and 20
        degrees on the 19th... which was also a new all-time record
        minimum for the month at that time. Record low maximum
        temperatures were set on 4 consecutive days: 48 degrees
        on the 16th... 35 degrees on the 17th... 40 degrees on the 18th...
        and 42 degrees on the 19th.
18-19 in 1955... heavy rains caused flash flooding across portions of
        Metro Denver. Rainfall totaled 1.71 inches at Stapleton
        Airport.
19 in 1955... hail stones to 2 1/2 inches in diameter were
        reported north of Denver. The large stones broke many
        automobile windshields.
      In 1963... hail to 3/4 inch in diameter fell in Westminster.
      In 1983... an unusually strong cold front roared through
        Metro Denver during the afternoon hours. At Stapleton
        International Airport... the temperature dropped 51 degrees...
        from a sunny 86 degrees to a snowy 35 degrees... in just 7
        hours. Strong winds and a wall of blowing dust followed
        the front. Northeast winds gusting to 36 mph briefly
        reduced the surface visibility to 1 mile in blowing dust
        at Stapleton International Airport where only a trace of
        snow fell later.
      In 1996... high winds gusting to 84 mph were measured at
        Golden Gate Canyon in the foothills west of Denver.
        West winds gusted to only 25 mph at Denver International
        Airport.


Weather Severe Map
Alabama - Special Statement
Alaska - High Surf Advisory , Areal Flood Advisory , Special Statement
California - Beach Hazard Statement
Colorado - Wind Advisory , Fire Weather Warning , Public Information Statement , Public Information Statement
Connecticut - Tropical Storm Watch , Hurricane Statement , Coastal Flood Advisory
Delaware - Coastal Flood Warning, High Surf Advisory , Coastal Flood Warning , Coastal Flood Advisory
Florida - Flood Warning , Coastal Flood Advisory , Coastal Hazard Statement
Georgia - Flood Warning , Hydrologic Statement , Public Information Statement , Public Information Statement
Hawaii - Record Report
Idaho - Lake Wind Advisory , Record Report
Illinois - Dense Fog Advisory , Special Statement
Indiana -
Iowa - Dense Fog Advisory , Special Statement , Public Information Statement
Kansas - Wind Advisory , Fire Weather Warning , Public Information Statement , Public Information Statement
Louisiana - Storm Surge Warning, Tropical Storm Warning , Flood Warning , Dense Fog Advisory
Maine - High Surf Advisory , Dense Fog Advisory
Maryland - Coastal Flood Advisory , Wind Advisory , Coastal Flood Advisory, High Surf Advisory, Beach Hazard Statement
Massachusetts - Tropical Storm Warning , Hurricane Statement , Flash Flood Watch , High Surf Advisory
Michigan -
Minnesota - Beach Hazard Statement , Public Information Statement
Missouri - Dense Fog Advisory
Nebraska - Fire Weather Warning
Nevada - Wind Advisory , Winter Weather Advisory
New Hampshire - High Surf Advisory
New Jersey - Coastal Flood Warning, High Surf Advisory , Coastal Flood Warning , Coastal Flood Advisory
New Mexico - Wind Advisory , Fire Weather Warning
New York - Tropical Storm Watch , Hurricane Statement , Coastal Flood Warning, High Surf Advisory, Coastal Flood Advisory, Coastal Hazard Statement , Coastal Flood Advisory , High Surf Advisory , Record Report
North Carolina - Coastal Flood Warning, High Surf Advisory, Beach Hazard Statement , Coastal Flood Advisory , Wind Advisory , Special Statement , Coastal Flood Advisory, High Surf Advisory, Beach Hazard Statement , Beach Hazard Statement
Ohio -
Oklahoma - Special Statement
Oregon - Flash Flood Watch
Pennsylvania -
Puerto Rico - Hurricane Warning, Hurricane Watch , Hurricane Warning , Flash Flood Watch , Flash Flood Watch
Rhode Island - Tropical Storm Warning , Hurricane Statement
South Dakota - Fire Weather Watch
Tennessee - Special Statement
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Virgin Islands - Hurricane Warning , Flash Flood Watch
Virginia - Coastal Flood Advisory , Special Statement , Coastal Flood Advisory, High Surf Advisory, Beach Hazard Statement
Washington - Winter Storm Warning
West Virginia - Special Statement
Wisconsin - Beach Hazard Statement , Public Information Statement
Wyoming - Winter Weather Advisory , Fire Weather Watch , Fire Weather Warning , Public Information Statement

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