Alert archive / Colorado / Red Flag Warnings in 2014

Red Flag Warning 2, NWS Denver/Boulder, CO

March 29, 20144 counties in Colorado

NWS Denver/Boulder, CO issued this red flag warning at Mar 29, 2014, 2:32 PM MDT for 4 counties in Colorado. It took effect at Mar 30, 2014, 12:00 PM MDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 29, 2014, 2:32 PM MDT (20:32 UTC)
In effect from
Mar 30, 2014, 12:00 PM MDT
Expired
Mar 30, 2014, 8:00 PM MDT
In force
8 hr
Issued by
NWS Denver/Boulder, CO

Counties Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Lincoln County, CO

The radar

The Denver radar (KFTG), 59 km from the middle of the area, began a volume at 20:29 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.

The nearest sounding before it

Denver, CO (KDEN), launched 12:00Z, 8.5 hours before the alert went out and 106 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Denver, CO at 12:00Z on 2014-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Denver, CO at 12:00Z on 2014-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3216 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
48 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

301 
WWUS85 KBOU 292032
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
232 PM MDT SAT MAR 29 2014

COZ241-246-247-301200-
/O.UPG.KBOU.FW.A.0001.140330T1800Z-140331T0200Z/
/O.NEW.KBOU.FW.W.0002.140330T1800Z-140331T0200Z/
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-
232 PM MDT SAT MAR 29 2014

...RED FLAG WARNING IN EFFECT FROM NOON TO 8 PM MDT SUNDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE INCLUDING
FIRE WEATHER 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
FROM NOON TO 8 PM MDT SUNDAY. THE FIRE WEATHER WATCH IS NO LONGER
IN EFFECT.

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

* TIMING...SOUTHWEST WINDS WILL INCREASE BY EARLY SUNDAY 
  AFTERNOON AND CONTINUE THROUGH EARLY SUNDAY EVENING. 

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...AS LOW AS 6 TO 10 PERCENT.

* IMPACTS...RAPID GRASSLAND WILDFIRE GROWTH IS LIKELY IF A FIRE 
  GETS STARTED. 

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.

&&

$$
3 follow-up statements
320 
WWUS85 KBOU 301020
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
420 AM MDT SUN MAR 30 2014

COZ241-246-247-302030-
/O.CON.KBOU.FW.W.0002.140330T1800Z-140331T0200Z/
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-
420 AM MDT SUN MAR 30 2014

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 8 PM MDT
THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER
DIVIDE INCLUDING FIRE WEATHER ZONES 241...246 AND 247...

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

* TIMING...SOUTHWEST WINDS WILL INCREASE BY EARLY THIS AFTERNOON
  AND CONTINUE THROUGH EARLY SUNDAY EVENING.

* WINDS...SOUTHWEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.

* RELATIVE HUMIDITY...AS LOW AS 7 PERCENT.

* IMPACTS...RAPID GRASSLAND WILDFIRE GROWTH IS LIKELY IF A FIRE 
  GETS STARTED. 

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.

&&

$$
296 
WWUS85 KBOU 301749
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1149 AM MDT SUN MAR 30 2014

COZ241-246-247-310200-
/O.CON.KBOU.FW.W.0002.140330T1800Z-140331T0200Z/
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-
1149 AM MDT SUN MAR 30 2014

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING
FOR WIND AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE
INCLUDING FIRE WEATHER ZONES 241...246 AND 247...

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

* TIMING...SOUTHWEST WINDS WILL CONTINUE INCREASING THROUGH THIS
  AFTERNOON. DURING THE EVENING...GUSTY WINDS WILL DIMINISH AS
  NIGHT TIME APPROACHES. LOW RELATIVE HUMIDITY VALUES WILL ALSO
  INCREASE THROUGH THE EVENING AS TEMPERATURES BEGIN COOLING OFF.

* WINDS...SOUTHWEST 10 TO 20 MPH EARLY IN THE AFTERNOON INCREASING
  TO 15 TO 30 MPH WITH GUSTS UP TO 40 MPH AFTER 2 PM.

* RELATIVE HUMIDITY...AS LOW AS 7 PERCENT.

* IMPACTS...RAPID GRASSLAND WILDFIRE GROWTH IS LIKELY IF A FIRE 
  GETS STARTED. 

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.

&&

$$
780 
WWUS85 KBOU 310158
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
758 PM MDT SUN MAR 30 2014


COZ241-246-247-310300-
/O.EXP.KBOU.FW.W.0002.000000T0000Z-140331T0200Z/
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-
758 PM MDT SUN MAR 30 2014

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING FOR WIND
AND LOW RELATIVE HUMIDITY FOR THE PALMER DIVIDE INCLUDING FIRE
WEATHER ZONES 241...246 AND 247...

THE GUSTY WINDS ARE EXPECTED TO GRADUALLY DECREASE THIS EVENING
WITH A SLOW RECOVERY IN RELATIVE HUMIDITIES. THEREFORE THE RED
FLAG WARNING WILL BE ALLOWED TO EXPIRE.


$$

The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 29, 4:00 AM MDTFire Weather WatchBOUArapahoe, Douglas, Elbert, Lincoln11 hr

Nearby

Red Flag Warnings in Colorado, 2014Every red flag warning in 2014

Sources

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.