Alert archive / Colorado / Red Flag Warnings in 2010

Red Flag Warning 13, NWS Denver/Boulder, CO

September 19, 201022 counties in Colorado

NWS Denver/Boulder, CO issued this red flag warning at Sep 19, 2010, 2:03 PM MDT for 22 counties in Colorado. It took effect at Sep 20, 2010, 12:00 PM MDT. It was in force for 9 hr. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 19, 2010, 2:03 PM MDT (20:03 UTC)
In effect from
Sep 20, 2010, 12:00 PM MDT
Expired
Sep 20, 2010, 9:00 PM MDT
In force
9 hr
Issued by
NWS Denver/Boulder, CO
All 22 counties

Adams County, CO, Arapahoe County, CO, Boulder County, CO, Broomfield County, CO, Clear Creek County, CO, Denver County, CO, Douglas County, CO, Elbert County, CO, Gilpin County, CO, Grand County, CO, Jackson County, CO, Jefferson County, CO, Larimer County, CO, Lincoln County, CO, Logan County, CO, Morgan County, CO, Park County, CO, Phillips County, CO, Sedgwick County, CO, Summit County, CO, Washington County, CO, Weld County, CO

The radar

The Denver radar (KFTG), 21 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.

What was reported inside it

TimeReportWhereRemark
Sep 20, 4:38 PM MDTNON-TSTM WND GST 623 Ene Gold Hill, COLEE HILL
Sep 20, 4:42 PM MDTTSTM WND GST 756 W Berthoud, COCARTER LAKE
Sep 20, 5:30 PM MDTHAIL 0.756 Ne Nunn, CO

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 8.1 hours before the alert went out and 120 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 2010-09-19Temperature 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 km15 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 2010-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.193958Sfc1 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
3162 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
66 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.

401 
WWUS85 KBOU 192003
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
203 PM MDT SUN SEP 19 2010

...VERY HIGH TO EXTREME FIRE DANGER EXPECTED MONDAY AFTERNOON AND
EVENING...

.VERY WARM TEMPERATURES COMBINED WITH LOW HUMIDITY AND GUSTY
WINDS WILL LEAD TO VERY HIGH TO EXTREME FIRE DANGER ACROSS THE
MOUNTAINS... HIGHER VALLEYS...FOOTHILLS AND NORTHEAST PLAINS FROM
MONDAY AFTERNOON INTO MONDAY EVENING.

COZ211>218-238>251-201115-
/O.UPG.KBOU.FW.A.0005.100920T1800Z-100921T0300Z/
/O.NEW.KBOU.FW.W.0013.100920T1800Z-100921T0300Z/
JACKSON COUNTY BELOW 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
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-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
203 PM MDT SUN SEP 19 2010

...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT MONDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 211...212...
213...214...215...216...217...218...238...239...240...241...242...
243...244...245...246...247...248...249...250 AND 251...

THE NATIONAL WEATHER SERVICE IN DENVER HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 9 PM MDT MONDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

* AFFECTED AREA...FIRE WEATHER ZONE 211...GOULD...NORTH PARK...
  RAND...SPICER...WALDEN...FIRE WEATHER ZONE 212...BERTHOUD 
  PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...EAST 
  SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...INDIAN 
  PEAKS...KENOSHA MOUNTAINS...MOUNT EVANS...PUMA HILLS... 
  TARRYALL MOUNTAINS...WILLIAMS FORK MOUNTAINS...WINTER PARK... 
  FIRE WEATHER ZONE 213...DILLON...FRASER...GRANBY...GRAND 
  LAKE...GREEN MOUNTAIN RESERVOIR...HOT SULPHUR SPRINGS... 
  KREMMLING...MIDDLE PARK...WILLIAMS FORK RESERVOIR...FIRE 
  WEATHER ZONE 214...ELEVEN MILE CANYON RESERVOIR...FAIRPLAY... 
  GUFFEY...HARTSEL...LAKE GEORGE...SOUTH PARK...FIRE WEATHER 
  ZONE 215...ESTES PARK...GLENDEVEY...LARAMIE RIVER VALLEY... 
  NEDERLAND...RED FEATHER LAKES...FIRE WEATHER ZONE 216... 
  BAILEY...CENTRAL CITY...EVERGREEN...GEORGETOWN...IDAHO 
  SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK... 
  FIRE WEATHER ZONE 217...EAST SLOPES PARK AND NORTHERN GORE 
  RANGES...GORE PASS...RABBIT EARS PASS...FIRE WEATHER ZONE 
  218...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... 
  RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK...WILLOW 
  CREEK PASS...FIRE WEATHER ZONE 238...FORT COLLINS... 
  HEREFORD...LOVELAND...NUNN...WEST PAWNEE GRASSLANDS...FIRE 
  WEATHER ZONE 239...ARVADA...BOULDER...GOLDEN...LAKEWOOD... 
  LONGMONT...FIRE WEATHER ZONE 240...AURORA...BRIGHTON...CITY 
  OF DENVER...DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH... 
  LITTLETON...PARKER...FIRE WEATHER ZONE 241...CASTLE ROCK... 
  ELBERT...FONDIS...KIOWA...LARKSPUR...FIRE WEATHER ZONE 242... 
  BRIGGSDALE...EAST PAWNEE GRASSLANDS...GROVER...PAWNEE 
  BUTTES...RAYMER...STONEHAM...FIRE WEATHER ZONE 243...EATON... 
  FORT LUPTON...GREELEY...ROGGEN...FIRE WEATHER ZONE 244... 
  BRUSH...FORT MORGAN...GOODRICH...WIGGINS...FIRE WEATHER ZONE 
  245...BENNETT...BYERS...DEER TRAIL...LEADER...FIRE WEATHER 
  ZONE 246...AGATE...HUGO...LIMON...MATHESON...FIRE WEATHER 
  ZONE 247...FORDER...KARVAL...KUTCH...PUNKIN CENTER...FIRE 
  WEATHER ZONE 248...CROOK...MERINO...STERLING...PEETZ...FIRE 
  WEATHER ZONE 249...AKRON...COPE...LAST CHANCE...OTIS...FIRE 
  WEATHER ZONE 250...JULESBURG...OVID...SEDGWICK...FIRE WEATHER 
  ZONE 251...AMHERST...HAXTUN...HOLYOKE. 

* TIMING...GUSTY WINDS COMBINED WITH LOW HUMIDTY WILL DEVELOP 
  BY EARLY MONDAY AFTERNOON AND CONTINUE THROUGH EARLY MONDAY 
  EVENING.

* WIND...SOUTHWEST TO WEST WINDS 15 TO 25 MPH. GUSTS UP TO 40 MPH
  IN THE MOUNTAINS AND FOOTHILLS.

* HUMIDITY...5-10%

* IMPACTS...THE COMBINATION OF WIND AND LOW HUMIDITY ALONG WITH
  DRY FUELS WILL CREATE VERY HIGH TO EXTREME FIRE DANGER. FIRES
  WILL IGNITE EASILY AND MAY SPREAD RAPIDLY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE
OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING.

&&

$$
3 follow-up statements
952 
WWUS85 KBOU 201007
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
407 AM MDT MON SEP 20 2010

...VERY HIGH TO EXTREME FIRE DANGER EXPECTED THIS AFTERNOON AND
EVENING...

.VERY WARM TEMPERATURES COMBINED WITH LOW HUMIDITY AND GUSTY
WINDS WILL LEAD TO VERY HIGH TO EXTREME FIRE DANGER ACROSS THE
MOUNTAINS...HIGHER VALLEYS...FOOTHILLS AND NORTHEAST PLAINS THIS
AFTERNOON AND EVENING. THERE WILL ALSP BE A SLIGHT CHANCE FOR
THUNDERSTORMS. A FEW OF THE STORMS COULD BE DRY AND PRODUCE LITTLE
RAINFALL AND WIND GUSTS TO 50 MPH. 

COZ211>218-238>251-202200-
/O.CON.KBOU.FW.W.0013.100920T1800Z-100921T0300Z/
JACKSON COUNTY BELOW 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
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-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
407 AM MDT MON SEP 20 2010

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER
ZONES 211...212... 213...214...215...216...217...218...238...
239...240...241...242... 243...244...245...246...247...248...
249...250 AND 251...

* AFFECTED AREA...FIRE WEATHER ZONE 211...GOULD...NORTH PARK... 
  RAND...SPICER...WALDEN...FIRE WEATHER ZONE 212...BERTHOUD 
  PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...EAST 
  SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...INDIAN 
  PEAKS... KENOSHA MOUNTAINS...MOUNT EVANS...PUMA HILLS... 
  TARRYALL MOUNTAINS...WILLIAMS FORK MOUNTAINS...WINTER PARK... 
  FIRE WEATHER ZONE 213...DILLON...FRASER...GRANBY...GRAND 
  LAKE... GREEN MOUNTAIN RESERVOIR...HOT SULPHUR SPRINGS... 
  KREMMLING... MIDDLE PARK...WILLIAMS FORK RESERVOIR...FIRE 
  WEATHER ZONE 214... ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...
   GUFFEY...HARTSEL... LAKE GEORGE...SOUTH PARK...FIRE WEATHER 
  ZONE 215...ESTES PARK... GLENDEVEY...LARAMIE RIVER VALLEY... 
  NEDERLAND...RED FEATHER LAKES...FIRE WEATHER ZONE 216... 
  BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO 
  SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK... 
  FIRE WEATHER ZONE 217...EAST SLOPES PARK AND NORTHERN GORE 
  RANGES...GORE PASS...RABBIT EARS PASS...FIRE WEATHER ZONE 
  218...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... 
  RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK...WILLOW 
  CREEK PASS...FIRE WEATHER ZONE 238... FORT COLLINS... 
  HEREFORD...LOVELAND...NUNN...WEST PAWNEE GRASSLANDS...FIRE 
  WEATHER ZONE 239...ARVADA...BOULDER... GOLDEN...LAKEWOOD... 
  LONGMONT...FIRE WEATHER ZONE 240... AURORA...BRIGHTON...CITY 
  OF DENVER...DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH... 
  LITTLETON...PARKER...FIRE WEATHER ZONE 241...CASTLE ROCK... 
  ELBERT...FONDIS...KIOWA...LARKSPUR... FIRE WEATHER ZONE 242...
   BRIGGSDALE...EAST PAWNEE GRASSLANDS... GROVER...PAWNEE 
  BUTTES...RAYMER...STONEHAM...FIRE WEATHER ZONE 243...EATON... 
  FORT LUPTON...GREELEY...ROGGEN...FIRE WEATHER ZONE 244... 
  BRUSH...FORT MORGAN...GOODRICH...WIGGINS...FIRE WEATHER ZONE 
  245...BENNETT...BYERS...DEER TRAIL...LEADER...FIRE WEATHER 
  ZONE 246...AGATE...HUGO...LIMON...MATHESON...FIRE WEATHER 
  ZONE 247...FORDER...KARVAL...KUTCH...PUNKIN CENTER... FIRE 
  WEATHER ZONE 248...CROOK...MERINO...STERLING...PEETZ... FIRE 
  WEATHER ZONE 249...AKRON...COPE...LAST CHANCE...OTIS... FIRE 
  WEATHER ZONE 250...JULESBURG...OVID...SEDGWICK...FIRE WEATHER 
  ZONE 251...AMHERST...HAXTUN...HOLYOKE. 

* TIMING...GUSTY WINDS COMBINED WITH LOW HUMIDITY WILL DEVELOP BY
  THIS AFTERNOON AND CONTINUE EARLY EVENING. THERE WILL ALSO BE A
  SLIGHT CHANCE FOR FEW DRY THUNDERSTORMS THIS AFTERNOON AND
  EVENING.

* WIND...SOUTHWEST TO WEST WINDS 15 TO 25 MPH. GUSTS UP TO 50 MPH
  IN THE MOUNTAINS AND NEAR THUNDERSTORMS. GUSTS TO 40 MPH WEST OF
  INTERSTATE 25.

* HUMIDITY...5-15%

* IMPACTS...THE COMBINATION OF WIND AND LOW HUMIDITY ALONG WITH
  DRY FUELS WILL CREATE VERY HIGH TO EXTREME FIRE DANGER. FIRES
  WILL IGNITE EASILY AND MAY SPREAD RAPIDLY. LIGHTING STRIKES
  OUTSIDE OF RAIN SHAFTS MAY PRODUCE NEW FIRE STARTS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE
OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING.

&&

$$
007 
WWUS85 KBOU 201849
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
1249 PM MDT MON SEP 20 2010

...VERY HIGH TO EXTREME FIRE DANGER THROUGH THIS EVENING...

.VERY WARM TEMPERATURES COMBINED WITH LOW HUMIDITY AND GUSTY
WINDS WILL LEAD TO VERY HIGH TO EXTREME FIRE DANGER ACROSS ALL OF
NORTHEAST AND NORTH CENTRAL COLORADO THROUGH THIS AFTERNOON AND EVENING.
THERE WILL ALSO BE A SLIGHT CHANCE FOR THUNDERSTORMS. A FEW OF THESE
STORMS COULD PRODUCE NEW FIRE STARTS...WIND GUSTS UP TO 50 MPH...BUT
LITTLE IF ANY RAINFALL.

COZ211>218-238>251-210300-
/O.CON.KBOU.FW.W.0013.000000T0000Z-100921T0300Z/
JACKSON COUNTY BELOW 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
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-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
1249 PM MDT MON SEP 20 2010

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR GUSTY WINDS...LOW HUMIDITY...AND EXTREMELY DRY FUELS FOR FIRE
WEATHER ZONES 211... 212...213...214...215...216...217...218...238...
239...240... 241...242... 243...244...245...246...247...248...
249...250 AND 251...

* AFFECTED AREA...FIRE WEATHER ZONE 211...GOULD...NORTH PARK... 
  RAND...SPICER...WALDEN...FIRE WEATHER ZONE 212...BERTHOUD 
  PASS...BRECKENRIDGE...EAST SLOPES MOSQUITO RANGE...EAST 
  SLOPES SOUTHERN GORE RANGE...EISENHOWER TUNNEL...INDIAN 
  PEAKS... KENOSHA MOUNTAINS...MOUNT EVANS...PUMA HILLS... 
  TARRYALL MOUNTAINS...WILLIAMS FORK MOUNTAINS...WINTER PARK... 
  FIRE WEATHER ZONE 213...DILLON...FRASER...GRANBY...GRAND 
  LAKE... GREEN MOUNTAIN RESERVOIR...HOT SULPHUR SPRINGS... 
  KREMMLING... MIDDLE PARK...WILLIAMS FORK RESERVOIR...FIRE 
  WEATHER ZONE 214... ELEVEN MILE CANYON RESERVOIR...FAIRPLAY...
   GUFFEY...HARTSEL... LAKE GEORGE...SOUTH PARK...FIRE WEATHER 
  ZONE 215...ESTES PARK... GLENDEVEY...LARAMIE RIVER VALLEY... 
  NEDERLAND...RED FEATHER LAKES...FIRE WEATHER ZONE 216... 
  BAILEY...CENTRAL CITY... EVERGREEN...GEORGETOWN...IDAHO 
  SPRINGS...NORTHERN RAMPART RANGE...TARRYALL...WESTCREEK... 
  FIRE WEATHER ZONE 217... EAST SLOPES PARK AND NORTHERN GORE 
  RANGES...GORE PASS...RABBIT EARS PASS...FIRE WEATHER ZONE 
  218...CAMERON PASS...LARAMIE AND MEDICINE BOW MOUNTAINS... 
  RABBIT EARS RANGE...ROCKY MOUNTAIN NATIONAL PARK...WILLOW 
  CREEK PASS...FIRE WEATHER ZONE 238... FORT COLLINS... 
  HEREFORD...LOVELAND...NUNN...WEST PAWNEE GRASSLANDS...FIRE 
  WEATHER ZONE 239...ARVADA...BOULDER... GOLDEN...LAKEWOOD... 
  LONGMONT...FIRE WEATHER ZONE 240... AURORA...BRIGHTON...CITY 
  OF DENVER...DENVER INTERNATIONAL AIRPORT...HIGHLANDS RANCH... 
  LITTLETON...PARKER...FIRE WEATHER ZONE 241...CASTLE ROCK... 
  ELBERT...FONDIS...KIOWA...LARKSPUR... FIRE WEATHER ZONE 242...
   BRIGGSDALE...EAST PAWNEE GRASSLANDS... GROVER...PAWNEE 
  BUTTES...RAYMER...STONEHAM...FIRE WEATHER ZONE 243...EATON... 
  FORT LUPTON...GREELEY...ROGGEN...FIRE WEATHER ZONE 244... 
  BRUSH...FORT MORGAN...GOODRICH...WIGGINS...FIRE WEATHER ZONE 
  245...BENNETT...BYERS...DEER TRAIL...LEADER...FIRE WEATHER 
  ZONE 246...AGATE...HUGO...LIMON...MATHESON...FIRE WEATHER 
  ZONE 247...FORDER...KARVAL...KUTCH...PUNKIN CENTER... FIRE 
  WEATHER ZONE 248...CROOK...MERINO...STERLING...PEETZ... FIRE 
  WEATHER ZONE 249...AKRON...COPE...LAST CHANCE...OTIS... FIRE 
  WEATHER ZONE 250...JULESBURG...OVID...SEDGWICK...FIRE WEATHER 
  ZONE 251...AMHERST...HAXTUN...HOLYOKE. 

* TIMING...CRITICAL FIRE WEATHER CONDITIONS WILL REMAIN IN PLACE
  THROUGH THE EARLY EVENING HOURS. THERE WILL ALSO BE A SLIGHT
  CHANCE OF THUNDERSTORMS WITH GUSTY WINDS BUT LITTLE IF ANY
  RAINFALL.

* WIND...SOUTHWEST TO WEST WINDS 15 TO 25 MPH. GUSTS UP TO 50 MPH
  WILL OCCUR IN THE MOUNTAINS AND NEAR THUNDERSTORMS. ON THE
  PLAINS...MOST GUSTS WILL RANGE BETWEEN 20 AND 30 MPH WITH A FEW
  GUSTS TO 40 MPH NEAR THE FOOTHILLS.

* HUMIDITY...5-12 PERCENT ON THE PLAINS AND LOWER FOOTHILLS. 10-20
  PERCENT IN THE MOUNTAINS...HIGH VALLEYS...AND FOOTHILLS ABOVE
  8000 FEET.

* IMPACTS...THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY ALONG
  WITH EXTREMELY DRY FUELS WILL CREATE VERY HIGH TO EXTREME FIRE
  DANGER. FIRES WILL IGNITE EASILY AND MAY SPREAD RAPIDLY.
  LIGHTING STRIKES MAY ALSO PRODUCE NEW FIRE STARTS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING OR IMMINENT. PLEASE ADVISE THE APPROPRIATE
OFFICIALS AND FIRE CREWS IN THE FIELD OF THIS RED FLAG WARNING.

FIRE BANS REMAIN IN EFFECT FOR MANY LOCATIONS. OUTDOOR BURNING IS
NOT RECOMMENDED. 

&&

$$

DB/TCD
076 
WWUS85 KBOU 210322
RFWBOU

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE DENVER CO
922 PM MDT MON SEP 20 2010

COZ211>218-238>251-210430-
/O.EXP.KBOU.FW.W.0013.000000T0000Z-100921T0300Z/
JACKSON COUNTY BELOW 9000 FEET-
SOUTH AND SOUTHEAST GRAND/WEST CENTRAL AND SOUTHWEST BOULDER/
GILPIN/CLEAR CREEK/SUMMIT/NORTH AND WEST PARK COUNTIES ABOVE
9000 FEET-GRAND AND SUMMIT COUNTIES BELOW 9000 FEET-
CENTRAL AND SOUTHEAST PARK COUNTY-
LARIMER AND BOULDER COUNTIES BETWEEN 6000 AND 9000 FEET-
JEFFERSON AND WEST DOUGLAS COUNTIES ABOVE 6000 FEET/GILPIN/CLEAR
CREEK/NORTHEAST PARK COUNTIES BELOW 9000 FEET-
WEST JACKSON AND WEST GRAND COUNTIES ABOVE 9000 FEET-
SOUTH AND EAST JACKSON/LARIMER/NORTH AND NORTHEAST GRAND/
NORTHWEST BOULDER COUNTIES ABOVE 9000 FEET-
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-
ELBERT/CENTRAL AND EAST DOUGLAS COUNTIES ABOVE 6000 FEET-
NORTHEAST WELD COUNTY-CENTRAL AND SOUTH WELD COUNTY-MORGAN COUNTY-
CENTRAL AND EAST ADAMS AND ARAPAHOE COUNTIES-
NORTH AND NORTHEAST ELBERT COUNTY BELOW 6000 FEET/NORTH LINCOLN
COUNTY-
SOUTHEAST ELBERT COUNTY BELOW 6000 FEET/SOUTH LINCOLN COUNTY-
LOGAN COUNTY-WASHINGTON COUNTY-SEDGWICK COUNTY-PHILLIPS COUNTY-
922 PM MDT MON SEP 20 2010

...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS...LOW HUMIDITY...
AND EXTREMELY DRY FUELS FOR FIRE WEATHER ZONES 211... 212...213...
214...215...216...217...218...238... 239...240... 241...242...
243...244...245...246...247...248... 249...250 AND 251...

THE RED FLAG WARNING IS NO LONGER IN EFFECT. 

WINDS HAVE DECREASED AND HUMIDITIES INCREASED THIS EVENING AND
THUNDERSTORM ACTIVITY HAS DIMINISHED. IT WILL STILL BE BREEZY IN
SOME AREAS ON TUESDAY...BUT WINDS WILL BE LIGHTER AND HUMIDITIES
WILL BE HIGHER ON THE PLAINS.

$$

GIMMESTAD

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 4:24 AM MDTFire Weather WatchBOUAdams, Arapahoe, Boulder, Broomfield, Clear Creek, Denver and 16 more10 hr

Nearby

Red Flag Warnings in Colorado, 2010Every red flag warning in 2010

Sources

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