Alert archive / Wyoming / Red Flag Warnings in 2007

Red Flag Warning 2, NWS Cheyenne, WY

August 20, 2007

NWS Cheyenne, WY issued this red flag warning at Aug 20, 2007, 4:00 AM MDT. It took effect at Aug 20, 2007, 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
Aug 20, 2007, 4:00 AM MDT (10:00 UTC)
In effect from
Aug 20, 2007, 12:00 PM MDT
Expired
Aug 20, 2007, 8:00 PM MDT
In force
8 hr
Issued by
NWS Cheyenne, WY

The text

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

000 
WWUS85 KCYS 201001
RFWCYS

RED FLAG WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
400 AM MDT MON AUG 20 2007

...RED FLAG WARNING THIS AFTERNOON THROUGH EARLY EVENING...

.A TROUGH ALOFT WILL MOVE ACROSS EASTERN MONTANA AND NORTH DAKOTA
TODAY. BRISK WESTERLY FLOW WILL PREVAIL IN THE LOWER AND MID LEVELS
OF THE ATMOSPHERE ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA.
TODAY WILL BE HOT AND DRY WITH INCREASING WINDS AND LOWERING
RELATIVE HUMIDITIES. CRITICAL FIRE WEATHER CONDITIONS ARE 
ANTICIPATED...ESPECIALLY ALONG AND WEST OF THE LARAMIE RANGE.

WYZ291-293-294-210200-
/O.UPG.KCYS.FW.A.0002.070820T1800Z-070821T0200Z/
/O.NEW.KCYS.FW.W.0002.070820T1800Z-070821T0200Z/
EAST-CENTRAL WYOMING. CONVERSE AND NIOBRARA COUNTIES-
NORTH AND SOUTHWEST CARBON COUNTY-LARAMIE MOUNTAIN RANGE NORTH-
400 AM MDT MON AUG 20 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR FIRE WEATHER ZONES 291...293 AND 294. 

THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

WINDS WILL STEADILY INCREASE TODAY ALONG WITH LOWERING RELATIVE
HUMIDITES. FOR THIS AFTERNOON AND EARLY EVENING...YOU CAN EXPECT
SUSTAINED OR FREQUENT WIND GUSTS IN EXCESS OF 25 MPH ALONG WITH
RELATIVE HUMIDITIES UNDER 15 PERCENT.

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.

$$

NEZ200-202-WYZ290-292-295-296-210200-
/O.NEW.KCYS.FW.W.0002.070820T1800Z-070821T0200Z/
NEBRASKA NATIONAL FOREST AND THE OGALLALA NATIONAL GRASSLANDS-
SCOTTSBLUFF NATIONAL MONUMENT AND THE WILDCAT HILLS OF WESTERN
NEBRASKA-
SOUTHEAST WYOMING PLAINS INCLUDING PINE BLUFFS/CHEYENNE
FOOTHILLS/
PLATTE COUNTY/GOSHEN COUNTY-
SOUTH CENTRAL WYOMING INCLUDING THE LARAMIE VALLEY-
LARAMIE MOUNTAIN RANGE SOUTH-
MEDICINE BOW NATIONAL FOREST IN THE MEDICINE BOW MOUNTAINS-
400 AM MDT MON AUG 20 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR FIRE WEATHER ZONES 200...202...290...292...295 AND 296.

WINDS WILL STEADILY INCREASE TODAY ALONG WITH LOWERING RELATIVE 
HUMDITIES. FOR THIS AFTERNOON AND EARLY EVENING...YOU CAN EXPECT
OCCASIONAL TO FREQUENT WIND GUSTS OF 25 TO 30 MPH ALONG WITH
RELATIVE HUMIDITIES LOWERING INTO THE 10 TO 20 PERCENT RANGE. 

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.

$$

RUBIN
4 follow-up statements
000 
WWUS85 KCYS 201015 CCA
RFWCYS

RED FLAG WARNING...CORRECTED
NATIONAL WEATHER SERVICE CHEYENNE WY
409 AM MDT MON AUG 20 2007

...RED FLAG WARNING FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR
STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR SOUTHEAST WYOMING AND
WESTERN NEBRASKA...

.A TROUGH ALOFT WILL MOVE ACROSS EASTERN MONTANA AND NORTH DAKOTA
TODAY. BRISK WESTERLY FLOW WILL PREVAIL IN THE LOWER AND MID LEVELS
OF THE ATMOSPHERE ACROSS SOUTHEAST WYOMING AND WESTERN NEBRASKA.
TODAY WILL BE HOT AND DRY WITH INCREASING WINDS AND LOWERING
RELATIVE HUMIDITIES. CRITICAL FIRE WEATHER CONDITIONS ARE 
ANTICIPATED...ESPECIALLY ALONG AND WEST OF THE LARAMIE RANGE.

WYZ291-293-294-210200-
/O.UPG.KCYS.FW.A.0002.070820T1800Z-070821T0200Z/
/O.COR.KCYS.FW.W.0002.070820T1800Z-070821T0200Z/
EAST-CENTRAL WYOMING. CONVERSE AND NIOBRARA COUNTIES-
NORTH AND SOUTHWEST CARBON COUNTY-LARAMIE MOUNTAIN RANGE NORTH-
409 AM MDT MON AUG 20 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR SOUTHEAST 
WYOMING...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR FIRE WEATHER ZONES 291...293 AND 294. 

THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT.

WINDS WILL STEADILY INCREASE TODAY ALONG WITH LOWERING RELATIVE
HUMIDITES. FOR THIS AFTERNOON AND EARLY EVENING...YOU CAN EXPECT
SUSTAINED OR FREQUENT WIND GUSTS IN EXCESS OF 25 MPH ALONG WITH
RELATIVE HUMIDITIES UNDER 15 PERCENT.

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.

$$

NEZ200-202-WYZ290-292-295-296-210200-
/O.COR.KCYS.FW.W.0002.070820T1800Z-070821T0200Z/
NEBRASKA NATIONAL FOREST AND THE OGALLALA NATIONAL GRASSLANDS-
SCOTTSBLUFF NATIONAL MONUMENT AND THE WILDCAT HILLS OF WESTERN
NEBRASKA-
SOUTHEAST WYOMING PLAINS INCLUDING PINE BLUFFS/CHEYENNE
FOOTHILLS/
PLATTE COUNTY/GOSHEN COUNTY-
SOUTH CENTRAL WYOMING INCLUDING THE LARAMIE VALLEY-
LARAMIE MOUNTAIN RANGE SOUTH-
MEDICINE BOW NATIONAL FOREST IN THE MEDICINE BOW MOUNTAINS-
409 AM MDT MON AUG 20 2007

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR SOUTHEAST 
WYOMING AND WESTERN NEBRASKA...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TODAY TO 8 PM MDT THIS
EVENING FOR FIRE WEATHER ZONES 200...202...290...292...295 AND 296.

WINDS WILL STEADILY INCREASE TODAY ALONG WITH LOWERING RELATIVE 
HUMDITIES. FOR THIS AFTERNOON AND EARLY EVENING...YOU CAN EXPECT
OCCASIONAL TO FREQUENT WIND GUSTS OF 25 TO 30 MPH ALONG WITH
RELATIVE HUMIDITIES LOWERING INTO THE 10 TO 20 PERCENT RANGE. 

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.

$$

RUBIN
000 
WWUS85 KCYS 202118
RFWCYS

RED FLAG WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
316 PM MDT MON AUG 20 2007

...RED FLAG WARNING FROM NOON TODAY TO 8 PM MDT THIS EVENING FOR
STRONG WINDS AND LOW RELATIVE HUMIDITIES FOR PARTS OF SOUTHEAST
WYOMING...

...FIRE WEATHER WATCH IN EFFECT FROM NOON UNTIL 6 PM TUESDAY FOR THE 
LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES...AND THE NORTH 
LARAMIE RANGE...
 
.BRISK WESTERLY FLOW WILL PREVAIL ACROSS SOUTHEAST WYOMING FOR THE 
REST OF THIS AFTERNOON...THEN DIMINISH EARLY THIS EVENING. GUSTY 
WINDS ARE EXPECTED TO RETURN TO WESTERN DISTRICTS TUESDAY AFTERNOON 
WITH CRITICAL FIRE WEATHER CONDITIONS POSSIBLE AGAIN IN THESE AREAS.

NEZ200-202-WYZ291-202215-
/O.CAN.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
NEBRASKA NATIONAL FOREST AND THE OGALLALA NATIONAL GRASSLANDS-
SCOTTSBLUFF NATIONAL MONUMENT AND THE WILDCAT HILLS OF WESTERN
NEBRASKA-EAST-CENTRAL WYOMING. CONVERSE AND NIOBRARA COUNTIES-
316 PM MDT MON AUG 20 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE RED
FLAG WARNING. 

WINDS HAVE DIMINISHED OVER THE AREA AND CONDITIONS ARE NO LONGER
EXPECTED TO MEET RED FLAG CRITERIA.

$$

WYZ292>294-210515-
/O.NEW.KCYS.FW.A.0003.070821T1800Z-070822T0000Z/
/O.CON.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
SOUTH CENTRAL WYOMING INCLUDING THE LARAMIE VALLEY-
NORTH AND SOUTHWEST CARBON COUNTY-LARAMIE MOUNTAIN RANGE NORTH-
316 PM MDT MON AUG 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS
EVENING...
...FIRE WEATHER WATCH IN EFFECT TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS ISSUED A FIRE
WEATHER WATCH...WHICH IS IN EFFECT TUESDAY AFTERNOON. A RED FLAG
WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING. 

GUSTY WINDS WILL DIMINISH THIS EVENING AND RELATIVE HUMIDITIES WILL 
BEGIN TO INCREASE AS TEMPERATURES COOL. LOW RELATIVE HUMIDITIES AND 
GUSTY WINDS ARE POSSIBLE AGIAN TUESDAY AFTERNOON.

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.

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

$$

WYZ290-295-296-210200-
/O.CON.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
SOUTHEAST WYOMING PLAINS INCLUDING PINE BLUFFS/CHEYENNE
FOOTHILLS/
PLATTE COUNTY/GOSHEN COUNTY-LARAMIE MOUNTAIN RANGE SOUTH-
MEDICINE BOW NATIONAL FOREST IN THE MEDICINE BOW MOUNTAINS-
316 PM MDT MON AUG 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.

GUSTY WESTERLY WINDS WILL DIMINISH EARLY THIS EVENING.  RELATIVE 
HUMIDITIES WILL INCREASE AS TEMPERATURES COOL THUS FIRE CONDITIONS 
WILL BECOME LESS CRITICAL. 

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 KCYS 202156
RFWCYS

RED FLAG WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
353 PM MDT MON AUG 20 2007

...RED FLAG WARNING UNTIL 8 PM MDT THIS EVENING FOR STRONG WINDS AND 
LOW RELATIVE HUMIDITIES FOR PARTS OF SOUTHEAST WYOMING...

...FIRE WEATHER WATCH IN EFFECT FROM NOON UNTIL 6 PM TUESDAY FOR
THE LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES...AND THE
NORTH LARAMIE RANGE...

.BRISK WESTERLY FLOW WILL PREVAIL ACROSS SOUTHEAST WYOMING FOR
THE REST OF THIS AFTERNOON...THEN DIMINISH EARLY THIS EVENING.
GUSTY WINDS ARE EXPECTED TO RETURN TO WESTERN DISTRICTS TUESDAY
AFTERNOON WITH CRITICAL FIRE WEATHER CONDITIONS POSSIBLE AGAIN IN
THESE AREAS.

WYZ290-295-202300-
/O.CAN.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
SOUTHEAST WYOMING PLAINS INCLUDING PINE BLUFFS/CHEYENNE
FOOTHILLS/
PLATTE COUNTY/GOSHEN COUNTY-LARAMIE MOUNTAIN RANGE SOUTH-
353 PM MDT MON AUG 20 2007

...RED FLAG WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN CHEYENNE HAS CANCELLED THE RED FLAG 
WARNING.  FIRE CONDITIONS ARE NO LONGER EXPECTED TO BE AT CRITICAL 
LEVELS. 

$$

WYZ292>294-210600-
/O.CON.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
/O.CON.KCYS.FW.A.0003.070821T1800Z-070822T0000Z/
SOUTH CENTRAL WYOMING INCLUDING THE LARAMIE VALLEY-
NORTH AND SOUTHWEST CARBON COUNTY-LARAMIE MOUNTAIN RANGE NORTH-
353 PM MDT MON AUG 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS
EVENING...
...FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.
A FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY AFTERNOON. 

GUSTY WINDS WILL DIMINISH THIS EVENING AND RELATIVE HUMIDITIES
WILL BEGIN TO INCREASE AS TEMPERATURES COOL. LOW RELATIVE
HUMIDITIES AND GUSTY WINDS ARE POSSIBLE AGIAN TUESDAY AFTERNOON.

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.

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

$$

WYZ296-210200-
/O.CON.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
MEDICINE BOW NATIONAL FOREST IN THE MEDICINE BOW MOUNTAINS-
353 PM MDT MON AUG 20 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM MDT THIS EVENING.

GUSTY WESTERLY WINDS WILL DIMINISH EARLY THIS EVENING.  RELATIVE
HUMIDITIES WILL INCREASE AS TEMPERATURES COOL THUS FIRE
CONDITIONS WILL BECOME LESS CRITICAL.

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 KCYS 210200
RFWCYS

RED FLAG WARNING
NATIONAL WEATHER SERVICE CHEYENNE WY
800 PM MDT MON AUG 20 2007

...FIRE WEATHER WATCH IN EFFECT FROM NOON UNTIL 6 PM TUESDAY FOR
THE LOWER ELEVATIONS OF CARBON AND ALBANY COUNTIES...AND THE NORTH
LARAMIE RANGE...

.GUSTY WINDS ARE EXPECTED TO RETURN TO WESTERN DISTRICTS TUESDAY
AFTERNOON WITH CRITICAL FIRE WEATHER CONDITIONS POSSIBLE AGAIN IN
THESE AREAS.

WYZ292>294-211000-
/O.EXP.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
/O.CON.KCYS.FW.A.0003.070821T1800Z-070822T0000Z/
SOUTH CENTRAL WYOMING INCLUDING THE LARAMIE VALLEY-
NORTH AND SOUTHWEST CARBON COUNTY-LARAMIE MOUNTAIN RANGE NORTH-
800 PM MDT MON AUG 20 2007

...FIRE WEATHER WATCH REMAINS IN EFFECT TUESDAY AFTERNOON...
...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING. A FIRE
WEATHER WATCH REMAINS IN EFFECT TUESDAY AFTERNOON. 

TEMPERATURES HAVE DECREASED THIS EVENING...AND WINDS HAVE
SUBSIDED. THEREFORE THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE
AT 8 PM MDT.

WEST WINDS OF 15 TO 25 MPH WITH GUSTS TO 30 MPH ARE ANTICIPATED TO
DEVELOP AGAIN ON TUESDAY AFTERNOON OVER WESTERN PORTIONS OF THE
DISTRICT. THE COMBINATION OF WINDS AND WIDESPREAD RELATIVE
HUMIDITIES OF LESS THAN 15 PERCENT MAY CREATE CRITICAL FIRE
BEHAVIOR CONDITIONS. 

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

$$

WYZ296-210300-
/O.EXP.KCYS.FW.W.0002.000000T0000Z-070821T0200Z/
MEDICINE BOW NATIONAL FOREST IN THE MEDICINE BOW MOUNTAINS-
800 PM MDT MON AUG 20 2007

...RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 8 PM MDT THIS EVENING. 

TEMPERATURES HAVE DECREASED THIS EVENING...AND WINDS HAVE
SUBSIDED. THEREFORE THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE
AT 8 PM MDT.

$$

HAHN

The office that day

Everything else NWS Cheyenne, WY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 19, 6:17 PM MDTFire Weather WatchCYS10 hr
Aug 20, 3:16 PM MDTFire Weather WatchCYS10 hr

Nearby

Red Flag Warnings in Wyoming, 2007Red Flag Warnings in Nebraska, 2007Every red flag warning in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.