Red Flag Warning 2, NWS Denver/Boulder, CO

Issued

Feb 17, 2013, 1:05 PM MST (20:05 UTC)

Expired

Feb 17, 2013, 6:00 PM MST

In force

5 hr

Issued by

NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Weld County, CO

The Denver radar (KFTG), 13 km from the middle of the area, began a volume at 20:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

937 
WWUS85 KBOU 172005
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
105 PM MST SUN FEB 17 2013

COZ238>240-180100-
/O.NEW.KBOU.FW.W.0002.130217T2005Z-130218T0100Z/
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-
105 PM MST SUN FEB 17 2013

...RED FLAG WARNING IN EFFECT UNTIL 6 PM MST THIS EVENING FOR
GUSTY WIND AND VERY LOW RELATIVE HUMIDITY FOR THE FRONT RANGE
URBAN CORRIDOR FIRE WEATHER ZONES 238...239 AND 240...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
UNTIL 6 PM MST THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONES 238...239 AND 240.

* TIMING...WARM...DRY AND GUSTY WEST TO SOUTHWEST WINDS IN ADVANCE
  OF A COLD FRONT MOVING THROUGH WYOMING WILL PRODUCE CRITICAL
  WILDLAND FIRE CONDITIONS ALONG THE FRONT RANGE OF NORTHEAST
  COLORADO THIS AFTERNOON.

* WINDS...WEST TO SOUTHWEST 15 TO 25 MPH WITH GUSTS TO AROUND 30
  MPH WILL GRADUALLY BECOME NORTHWEST 20 TO 35 MPH LATE THIS
  AFTERNOON.

* RELATIVE HUMIDITY...WILL RANGE FROM 3 TO 12 PERCENT...WITH THE
  LOWEST VALUES IN THE WINDIER AREAS NEAR THE BASE OF THE
  FOOTHILLS AND UP NEAR THE WYOMING BORDER.

* IMPACTS...VERY LOW RELATIVE HUMIDITY AND STRONG AND GUSTY WINDS
  COULD POTENTIALLY PRODUCE RAPID FIRE SPREAD RATES AND CRITICAL
  WILD FIRE BEHAVIOR PRIOR TO THE PASSAGE OF A COLD FRONT AND THE
  ARRIVAL OF HIGHER RELATIVE HUMIDITIES THIS EVENING.

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 WILL
CREATE RAPID FIRE GROWTH POTENTIAL.

&&

$$
BAKER
COZ241-246-247-180100-
/O.NEW.KBOU.FW.W.0002.130217T2005Z-130218T0100Z/
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
105 PM MST SUN FEB 17 2013

...RED FLAG WARNING IN EFFECT UNTIL 6 PM MST THIS EVENING FOR
GUSTY WIND AND VERY LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE
AND LINCOLN COUNTY IN EAST CENTRAL COLORADO...ZONES 241...246 AND
247...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG
WARNING FOR WIND AND LOW RELATIVE HUMIDITY...WHICH IS IN EFFECT
UNTIL 6 PM MST THIS EVENING.

* AFFECTED AREA...FIRE WEATHER ZONES 241...246 AND 247.

* TIMING...WARM...DRY AND GUSTY WEST TO SOUTHWEST WINDS IN ADVANCE
  OF A COLD FRONT MOVING THROUGH WYOMING WILL PRODUCE CRITICAL
  WILDLAND FIRE CONDITIONS ALONG THE FRONT RANGE OF NORTHEAST
  COLORADO THIS AFTERNOON.

* WINDS...WEST TO SOUTHWEST 15 TO 25 MPH WITH GUSTS TO AROUND 30
  MPH WILL GRADUALLY BECOME NORTHWEST 20 TO 35 MPH LATE THIS
  AFTERNOON.

* RELATIVE HUMIDITY...WILL RANGE FROM 6 TO 14 PERCENT...WITH THE
  LOWEST VALUES IN THE WINDIER AREAS NEAR THE FOOTHILLS.

* IMPACTS...VERY LOW RELATIVE HUMIDITY AND STRONG AND GUSTY WINDS
  COULD POTENTIALLY PRODUCE RAPID FIRE SPREAD RATES AND CRITICAL
  WILD FIRE BEHAVIOR PRIOR TO THE PASSAGE OF A COLD FRONT AND THE
  ARRIVAL OF HIGHER RELATIVE HUMIDITIES THIS EVENING.

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 WILL
CREATE RAPID FIRE GROWTH POTENTIAL.

&&

$$
BAKER

522 
WWUS85 KBOU 180058
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
558 PM MST SUN FEB 17 2013


COZ238>240-180200-
/O.EXP.KBOU.FW.W.0002.000000T0000Z-130218T0100Z/
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-
558 PM MST SUN FEB 17 2013

...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR
GUSTY WIND AND VERY LOW RELATIVE HUMIDITY FOR THE FRONT RANGE
URBAN CORRIDOR FIRE WEATHER ZONES 238...239 AND 240...

COOLER TEMPERATURES ALONG WITH AN INCREASE IN HUMIDITY WILL
DEVELOP BEHIND A COLD FRONT EARLY THIS EVENING.

$$

COZ241-246-247-180200-
/O.EXP.KBOU.FW.W.0002.000000T0000Z-130218T0100Z/
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
558 PM MST SUN FEB 17 2013

...RED FLAG WARNING WILL EXPIRE AT 6 PM MST THIS EVENING FOR
GUSTY WIND AND VERY LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE
AND LINCOLN COUNTY IN EAST CENTRAL COLORADO...ZONES 241...246 AND
247...

COOLER TEMPERATURES ALONG WITH AN INCREASE IN HUMIDITY WILL
DEVELOP BEHIND A COLD FRONT LATER THIS EVENING.

$$

Red Flag Warnings in Colorado, 2013Every red flag warning in 2013

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.