Alert archive / Colorado / Red Flag Warnings in 2008

Red Flag Warning 21, NWS Grand Junction, CO

July 4, 20085 counties in Colorado

NWS Grand Junction, CO issued this red flag warning at Jul 4, 2008, 3:00 PM MDT for 5 counties in Colorado. It took effect at Jul 5, 2008, 6:06 AM MDT. It was in force for 13 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
Jul 4, 2008, 3:00 PM MDT (21:00 UTC)
In effect from
Jul 5, 2008, 6:06 AM MDT
Expired
Jul 5, 2008, 6:58 PM MDT
In force
13 hr
Issued by
NWS Grand Junction, CO

Counties Garfield County, CO, Mesa County, CO, Moffat County, CO, Rio Blanco County, CO, Routt County, CO

The radar

The Grand Junction radar (KGJX), 100 km from the middle of the area, began a volume at 21:01 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

Grand Junction, CO (KGJT), launched 12:00Z, 9.0 hours before the alert went out and 101 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, Grand Junction, CO at 12:00Z on 2008-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 6 joules per kilogram.LCLLFCEL10008507005003002001001 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, Grand Junction, CO at 12:00Z on 2008-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 square meters per square second.1939Sfc1 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
6 J/kg
Mixed-layer CIN
-479 J/kg
Mixed-layer LCL
3167 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
153 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.

000 
WWUS85 KGJT 042100
RFWGJT

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
300 PM MDT FRI JUL 4 2008


COZ201-UTZ430-443-444-050500-
/O.NEW.KGJT.FW.W.0021.080705T1800Z-080706T0300Z/
CRAIG FORECAST AREA-WESTERN UINTA BASIN-EASTERN UINTA BASIN-
EAST TAVAPUTS PLATEAU-
300 PM MDT FRI JUL 4 2008

...RED FLAG WARNING IN EFFECT FROM 12 PM TO 9 PM MDT SATURDAY 
BELOW 7000 FEET FOR WIDELY SCATTERED DRY LIGHTNING LAL OF 6...

THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM 12 PM TO 9 PM MDT
SATURDAY. 

MOISTURE IS INCREASING OVER THE REGION TONIGHT AND INTO SATURDAY.
THUNDERSTORM ACTIVITY WILL INCREASE SATURDAY AFTERNOON...BUT MOST
STORMS WILL PRODUCE LIGHTNING AND GUSTY WINDS...BUT LITTLE RAINFALL.

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...WARM TEMPERATURES...AND DRY 
LIGHTNING WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

COZ203-050500-
/O.NEW.KGJT.FW.A.0011.080705T1800Z-080706T0300Z/
GRAND JUNCTION FORECAST AREA-
300 PM MDT FRI JUL 4 2008

...FIRE WEATHER WATCH IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SATURDAY EVENING BELOW 7500 FEET FOR WIDELY SCATTERED DRY LIGHTNING 
LAL OF 6...

THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING. 

MOISTURE IS INCREASING OVER THE REGION TONIGHT AND INTO SATURDAY. 
THUNDERSTORM ACTIVITY WILL INCREASE SATURDAY AFTERNOON...BUT
RAINFALL WILL BE LIMITED WITH THESE STORMS. WITH THE POTENTIAL FOR
MANY STORMS PRODUCING LIGHTNING AND GUSTY WINDS...BUT LITTLE
RAINFALL...A FIRE WEATHER WATCH IS IN EFFECT.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$
4 follow-up statements
000 
WWUS85 KGJT 050459
RFWGJT

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
1059 PM MDT FRI JUL 4 2008

COZ201-UTZ430-443-444-051400-
/O.CON.KGJT.FW.W.0021.080705T1800Z-080706T0300Z/
CRAIG FORECAST AREA-WESTERN UINTA BASIN-EASTERN UINTA BASIN-
EAST TAVAPUTS PLATEAU-
1059 PM MDT FRI JUL 4 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 9 PM MDT
SATURDAY BELOW 7000 FEET FOR WIDELY SCATTERED DRY LIGHTNING...

A RED FLAG WARNING REMAINS IN EFFECT FROM 12 PM TO 9 PM MDT
SATURDAY. 

MOISTURE IS INCREASING OVER THE REGION TONIGHT AND INTO SATURDAY.
THUNDERSTORM ACTIVITY WILL INCREASE SATURDAY AFTERNOON...BUT MOST
STORMS WILL PRODUCE LIGHTNING AND GUSTY WINDS...BUT LITTLE
RAINFALL.

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...WARM TEMPERATURES...AND
DRY LIGHTNING WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

COZ203-051400-
/O.CON.KGJT.FW.A.0011.080705T1800Z-080706T0300Z/
GRAND JUNCTION FORECAST AREA-
1059 PM MDT FRI JUL 4 2008

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING SATURDAY EVENING BELOW 7500 FEET FOR 
WIDELY SCATTERED DRY LIGHTNING ...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING. 

MOISTURE IS INCREASING OVER THE REGION TONIGHT AND INTO SATURDAY.
THUNDERSTORM ACTIVITY WILL INCREASE SATURDAY AFTERNOON...BUT
RAINFALL WILL BE LIMITED WITH THESE STORMS. WITH THE POTENTIAL
FOR MANY STORMS PRODUCING LIGHTNING AND GUSTY WINDS...BUT LITTLE
RAINFALL...A FIRE WEATHER WATCH IS IN EFFECT.

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE FORECAST TO OCCUR. LISTEN FOR LATER FORECASTS AND POSSIBLE
RED FLAG WARNINGS.

$$

CUOCO
000 
WWUS85 KGJT 051206
RFWGJT

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
606 AM MDT SAT JUL 5 2008

COZ203-052015-
/O.UPG.KGJT.FW.A.0011.080705T1800Z-080706T0300Z/
/O.EXA.KGJT.FW.W.0021.080705T1800Z-080706T0300Z/
GRAND JUNCTION FORECAST AREA-
606 AM MDT SAT JUL 5 2008

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 9 PM MDT THIS
EVENING FOR DRY LIGHTNING BELOW 7500 FEET...

THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION HAS ISSUED A RED
FLAG WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR AREAS BELOW 7500 FEET. THE FIRE WEATHER WATCH 
IS NO LONGER IN EFFECT.

MID-LEVEL MOISTURE WILL INCREASE OVER THE AREA TODAY. THUNDERSTORM
ACTIVITY WILL INCREASE THIS AFTERNOON AND EVENING...BUT MOST STORMS
WILL PRODUCE GUSTY WINDS WITH LITTLE OR NO RAINFALL. NEW FIRE
STARTS AND RAPID SPREAD OF FIRES FROM ERRATIC THUNDERSTORM WIND
GUSTS TO 35 MPH ARE EXPECTED IN AREAS BELOW 7500 FEET WHERE FUELS
ARE RATED CRITICALLY DRY.

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 EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

COZ201-UTZ430-443-444-052015-
/O.CON.KGJT.FW.W.0021.080705T1800Z-080706T0300Z/
CRAIG FORECAST AREA-WESTERN UINTA BASIN-EASTERN UINTA BASIN-
EAST TAVAPUTS PLATEAU-
606 AM MDT SAT JUL 5 2008

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR DRY LIGHTNING BELOW 7000 FEET...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR AREAS BELOW 7000 FEET. 

MOISTURE WILL INCREASE OVER THE AREA TODAY. THUNDERSTORM ACTIVITY
WILL INCREASE THIS AFTERNOON AND EVENING...BUT MOST STORMS
WILL PRODUCE GUSTY WINDS WITH LITTLE OR NO RAINFALL. NEW FIRE
STARTS AND RAPID SPREAD OF FIRES FROM ERRATIC THUNDERSTORM WIND
GUSTS TO 35 MPH ARE EXPECTED IN AREAS BELOW 7000 FEET WHERE FUELS
ARE RATED CRITICALLY DRY. 

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...WARM TEMPERATURES...AND
DRY LIGHTNING WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

CUOCO
000 
WWUS85 KGJT 052012
RFWGJT

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
212 PM MDT SAT JUL 5 2008

COZ201-UTZ430-443-444-060300-
/O.CON.KGJT.FW.W.0021.000000T0000Z-080706T0300Z/
CRAIG FORECAST AREA-WESTERN UINTA BASIN-EASTERN UINTA BASIN-
EAST TAVAPUTS PLATEAU-
212 PM MDT SAT JUL 5 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING BELOW 7000 FEET FOR NORTHEAST UTAH FIRE ZONES 430...443...AND 444
...AND NORTHWEST COLORADO FIRE ZONE 201...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING BELOW 
7000 FEET FOR NORTHEAST UTAH FIRE ZONES 430...443...AND 444
...AND NORTHWEST COLORADO FIRE ZONE 201..

CONSIDERABLE MID LEVEL MOISTURE IS IN PLACE OVER THE REGION THIS
AFTERNOON. THUNDERSTORM ACTIVITY IS EXPECTED TO INCREASE LATE THIS
AFTERNOON AND EVENING...BUT MOST STORMS WILL PRODUCE GUSTY WINDS
WITH LITTLE OR NO RAINFALL. NEW FIRE STARTS AND RAPID SPREAD OF
FIRES FROM ERRATIC THUNDERSTORM WIND GUSTS TO 35 MPH ARE EXPECTED
IN AREAS BELOW 7000 FEET WHERE FUELS ARE RATED CRITICALLY DRY.

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...WARM TEMPERATURES...AND
DRY LIGHTNING WILL CREATE EXPLOSIVE FIRE GROWTH POTENTIAL.

$$

COZ203-060300-
/O.CON.KGJT.FW.W.0021.000000T0000Z-080706T0300Z/
GRAND JUNCTION FORECAST AREA-
212 PM MDT SAT JUL 5 2008

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS
EVENING FOR DRY LIGHTNING BELOW 7500 FEET FOR COLORADO FIRE ZONE 203...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR
DRY LIGHTNING BELOW 7500 FEET FOR COLORADO FIRE ZONE 203.

MID-LEVEL MOISTURE HAS INCREASED OVER THE AREA TODAY. THUNDERSTORM
ACTIVITY IS EXPECTED TO INCREASE THIS AFTERNOON AND EVENING... BUT
MOST STORMS WILL PRODUCE GUSTY WINDS WITH LITTLE OR NO RAINFALL.
NEW FIRE STARTS AND RAPID SPREAD OF FIRES FROM ERRATIC
THUNDERSTORM WIND GUSTS TO 35 MPH ARE EXPECTED IN AREAS BELOW 7500
FEET WHERE FUELS ARE RATED CRITICALLY DRY.

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 EXPLOSIVE FIRE GROWTH POTENTIAL.

$$
000 
WWUS85 KGJT 060058
RFWGJT

RED FLAG WARNING
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
658 PM MDT SAT JUL 5 2008

COZ201-203-UTZ430-443-444-060200-
/O.CAN.KGJT.FW.W.0021.000000T0000Z-080706T0300Z/
CRAIG FORECAST AREA-GRAND JUNCTION FORECAST AREA-
WESTERN UINTA BASIN-EASTERN UINTA BASIN-EAST TAVAPUTS PLATEAU-
658 PM MDT SAT JUL 5 2008

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN GRAND JUNCTION HAS CANCELLED THE
RED FLAG WARNING. 

THE THREAT OF WIDELY SCATTERED DRY THUNDERSTORMS HAS ENDED.
CONVECTIVE STORMS HAVE DIMINISHED DURING THE PAST HOUR AND THIS
TREND IS EXPECTED THROUGH THE EVENING. THEREFORE THE RED FLAG
WARNING HAS BEEN CANCELLED.

$$

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 3:00 PM MDTFire Weather WatchGJTGarfield, Mesa15 hr

Nearby

Red Flag Warnings in Colorado, 2008Red Flag Warnings in Utah, 2008Every red flag warning in 2008

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.