Alert archive / California / Red Flag Warnings in 2009

Red Flag Warning 7, NWS Reno, NV

September 27, 20094 counties in California; Washoe County, Nevada

NWS Reno, NV issued this red flag warning at Sep 27, 2009, 2:34 PM PDT for 4 counties in California; Washoe County, Nevada. It took effect at Sep 28, 2009, 12:00 PM PDT. It was in force for 32 hr. 5 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 27, 2009, 2:34 PM PDT (21:34 UTC)
In effect from
Sep 28, 2009, 12:00 PM PDT
Expired
Sep 29, 2009, 8:00 PM PDT
In force
32 hr
Issued by
NWS Reno, NV

Counties Lassen County, CA, Modoc County, CA, Plumas County, CA, Sierra County, CA, Washoe County, NV

What was reported inside it

TimeReportWhereRemark
Sep 29, 6:45 AM PDTNON-TSTM WND GST 694 Nnw Virginia City, NVTHE NDOT SENSOR AT FIVE MILE FLAT RECORDED A WIND GUST OF 69 MPH.
Sep 29, 9:00 AM PDTNON-TSTM WND GST 55Stead, NVTHE RENO GAZETTE-JOURNAL REPORTED THAT STRONG WINDS CAUSED A SEMI-TRUCK TO BLOW OVER ON U.S. HIGHWAY 395 NEAR STEAD.
Sep 29, 9:11 AM PDTNON-TSTM WND GST 58Doyle, CATHE RAWS SENSOR AT DOYLE RECORDED A WIND GUST OF 58 MPH.
Sep 29, 11:03 AM PDTNON-TSTM WND GST 66Mount Rose Ski Area, NVTHE GALENA RAWS RECORDED A WIND GUST OF 66 MPH.
Sep 29, 3:00 PM PDTNON-TSTM WND DMGSpanish Springs, NVAN OFF-DUTY NATIONAL WEATHER SERVICE EMPLOYEE REPORTED A FENCE BLOWN DOWN BY STRONG WINDS IN THE SPANISH SPRINGS AREA NORTHEAST OF RENO.

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

The nearest sounding before it

Reno, NV (KREV), launched 12:00Z, 9.6 hours before the alert went out and 219 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, Reno, NV at 12:00Z on 2009-09-27Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 12:00Z on 2009-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4529 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
12 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 KREV 272134
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
234 PM PDT SUN SEP 27 2009

CAZ270-271-278-NVZ458-281400-
/O.UPG.KREV.FW.A.0008.090928T1900Z-090929T0500Z/
/O.NEW.KREV.FW.W.0007.090928T1900Z-090929T0500Z/
SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS-
EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
234 PM PDT SUN SEP 27 2009

...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT MONDAY FOR
PARTS OF THE NORTHERN SIERRA AND WESTERN NEVADA FOR GUSTY WINDS
AND LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM NOON TO 10 PM PDT MONDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE NORTHERN SIERRA AND WESTERN NEVADA ON MONDAY. SOUTHWEST
WINDS WILL INCREASE WITH GUSTS OF 30 TO 35 MPH MONDAY AFTERNOON
AND EVENING AHEAD OF THE FRONT. DRY CONDITIONS WILL PERSIST AHEAD
OF THE FRONT WITH HUMIDITY 10 TO 15 PERCENT ACROSS MUCH OF THE
AREA. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

NVZ450-281400-
/O.UPG.KREV.FW.A.0008.090928T1900Z-090929T0500Z/
/O.NEW.KREV.FW.W.0007.090928T2100Z-090929T0500Z/
WESTERN NEVADA SIERRA FRONT-
234 PM PDT SUN SEP 27 2009

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 10 PM PDT MONDAY FOR
THE SIERRA FRONT FOR GUSTY WINDS AND LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM TO 10 PM PDT MONDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE SIERRA FRONT ON MONDAY. SOUTHWEST WINDS WILL INCREASE WITH
GUSTS OF 30 TO 35 MPH MONDAY AFTERNOON AND EVENING AHEAD OF THE
FRONT...ESPECIALLY ALONG HIGHWAY 395 AND IN THE FOOTHILLS. DRY
CONDITIONS WILL PERSIST AHEAD OF THE FRONT WITH HUMIDITY 10 TO 15
PERCENT ACROSS MUCH OF THE AREA. THE COMBINATION OF GUSTY WINDS
AND LOW HUMIDITY WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON
MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

CAZ273-NVZ459-281400-
/O.EXT.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-MINERAL AND SOUTHERN LYON COUNTIES-
234 PM PDT SUN SEP 27 2009

...FIRE WEATHER WATCH NOW IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON FOR PARTS OF THE CENTRAL SIERRA AND WESTERN
NEVADA FOR GUSTY WINDS AND LOW HUMIDITY...

THE FIRE WEATHER WATCH IS NOW IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON. 

A STRONG COLD FRONT WILL APPROACH MONO AND MINERAL COUNTIES BY
MID-MORNING TUESDAY. STRONG SOUTHWEST WINDS OF 15 TO 30 MPH WITH
GUSTS TO 45 MPH ARE POSSIBLE BEGINNING MID-MORNING TUESDAY AND
CONTINUING THROUGH THE AFTERNOON. HUMIDITY WILL DROP TO NEAR 15
PERCENT DURING THE MORNING AND REMAIN LOW INTO THE AFTERNOON.
CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT PASSES. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY MAY
PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE POSSIBLE. CHECK WEATHER.GOV/RENO FOR UPDATES AND POSSIBLE RED
FLAG WARNINGS.

&&

$$

GMCGUIRE

HTTP://WEATHER.GOV/RENO
7 follow-up statements
000 
WWUS85 KREV 281338
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
638 AM PDT MON SEP 28 2009

NVZ450-290145-
/O.EXA.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
/O.EXT.KREV.FW.W.0007.090928T1900Z-090929T0500Z/
WESTERN NEVADA SIERRA FRONT-
638 AM PDT MON SEP 28 2009

...RED FLAG WARNING NOW IN EFFECT FROM NOON TODAY TO 10 PM PDT
THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY...
...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON FOR GUSTY WINDS AND LOW HUMIDITY...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
AFTERNOON. THE RED FLAG WARNING IS NOW IN EFFECT FROM NOON TODAY
TO 10 PM PDT THIS EVENING. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE SIERRA FRONT TODAY. SOUTHWEST WINDS WILL INCREASE WITH
GUSTS OF 30 TO 35 MPH THIS AFTERNOON AND EVENING AHEAD OF THE FRONT.
DRY CONDITIONS WILL PERSIST AHEAD OF THE FRONT WITH HUMIDITY 5 TO
15 PERCENT ACROSS MUCH OF THE AREA. THE COMBINATION OF GUSTY WINDS
AND LOW HUMIDITY WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS.

WHILE SOME LOCALIZED STRONG WINDS ARE POSSIBLE OVERNIGHT MONDAY
NIGHT WITH HUMIDITY IN THE 20S...IT WILL NOT BE WIDESPREAD WITH
MOST AREAS SEEING PEAK GUSTS TO 25 MPH. HOWEVER...WIDESPREAD WEST
WINDS ARE POSSIBLE TUESDAY MORNING WITH SPEEDS OF 20 TO 35 MPH AND
GUSTS TO 50 MPH. IN ADDITION...HUMIDITY WILL DROP BACK DOWN TO THE
UPPER TEENS TUESDAY WITH CONDITIONS CONTINUING THROUGH TUESDAY
AFTERNOON. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY MAY
PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE POSSIBLE. CHECK WEATHER.GOV/RENO FOR UPDATES AND POSSIBLE RED
FLAG WARNINGS.

&&

$$

CAZ270-271-278-NVZ458-290145-
/O.CON.KREV.FW.W.0007.090928T1900Z-090929T0500Z/
SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS-
EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
638 AM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM
PDT THIS EVENING...

A RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 10 PM PDT
THIS EVENING. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE NORTHERN SIERRA AND NORTHWESTERN NEVADA TODAY. SOUTHWEST
WINDS WILL INCREASE WITH GUSTS OF 30 TO 35 MPH THIS AFTERNOON AND
EVENING AHEAD OF THE FRONT. DRY CONDITIONS WILL PERSIST AHEAD OF
THE FRONT WITH HUMIDITY 10 TO 15 PERCENT ACROSS MUCH OF THE AREA.
THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ453-290145-
/O.EXA.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
WEST CENTRAL NEVADA BASIN AND RANGE-
638 AM PDT MON SEP 28 2009

...FIRE WEATHER WATCH IN EFFECT FROM TUESDAY MORNING THROUGH
TUESDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A FIRE WEATHER
WATCH...WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY
AFTERNOON. 

A STRONG COLD FRONT WILL MOVE INTO PERSHING COUNTY MID-MORNING
TUESDAY. STRONG SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45
MPH ARE POSSIBLE BEGINNING MID-MORNING TUESDAY AND CONTINUING
THROUGH THE AFTERNOON. HUMIDITY WILL DROP TO NEAR 15 PERCENT
DURING THE MORNING AND REMAIN LOW INTO THE AFTERNOON. CONDITIONS
ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE FRONT PASSES.
THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY MAY PRODUCE
CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE POSSIBLE. CHECK WEATHER.GOV/RENO FOR UPDATES AND POSSIBLE RED
FLAG WARNINGS.

&&

$$

CAZ273-NVZ459-290145-
/O.CON.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-MINERAL AND SOUTHERN LYON COUNTIES-
638 AM PDT MON SEP 28 2009

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON...

A FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY AFTERNOON. 

A STRONG COLD FRONT WILL APPROACH MONO AND MINERAL COUNTIES BY
MID-MORNING TUESDAY. STRONG SOUTHWEST WINDS OF 20 TO 35 MPH WITH
GUSTS TO 50 MPH ARE POSSIBLE BEGINNING MID-MORNING TUESDAY AND
CONTINUING THROUGH THE AFTERNOON. HUMIDITY WILL DROP TO NEAR 15
PERCENT DURING THE MORNING AND REMAIN LOW INTO THE AFTERNOON.
CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT PASSES. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY MAY
PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FIRE WEATHER WATCH MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE POSSIBLE. CHECK WEATHER.GOV/RENO FOR UPDATES AND POSSIBLE RED
FLAG WARNINGS.

&&

$$

WALLMANN

HTTP://WEATHER.GOV/RENO
000 
WWUS85 KREV 281847
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
1147 AM PDT MON SEP 28 2009

NVZ453-290500-
/O.UPG.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
/O.NEW.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
/O.EXB.KREV.FW.W.0007.090928T2100Z-090929T0500Z/
WEST CENTRAL NEVADA BASIN AND RANGE-
1147 AM PDT MON SEP 28 2009

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM
PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY MAINLY FOR AREAS
NORTH OF INTERSTATE 80... 

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 5 PM PDT TUESDAY FOR 
GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM
PDT THIS EVENING. A RED FLAG WARNING HAS ALSO BEEN ISSUED FROM
9 AM TO 5 PM PDT TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN
EFFECT. 

WINDS WILL INCREASE THIS AFTERNOON AHEAD OF AN APPROACHING COLD
FRONT. SOUTHWEST WINDS WILL INCREASE TO 15 TO 20 MPH WITH GUSTS TO
35 MPH. HUMIDITIES ARE ALREADY IN THE LOW TEENS AND ARE EXPECTED
TO FALL INTO THE SINGLE DIGITS TODAY.

A STRONG COLD FRONT WILL MOVE INTO PERSHING COUNTY MID-MORNING
TUESDAY. GUSTY AND ERRATIC WINDS WILL OCCUR ALONG THE COLD FRONT.
STRONG SOUTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH ARE
EXPECTED AHEAD OF THE FRONT WITH HUMIDITY NEAR 15 PERCENT.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT PASSES. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY IS
EXPECTED TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

CAZ273-290500-
/O.UPG.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
/O.NEW.KREV.FW.W.0008.090929T0600Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-
1147 AM PDT MON SEP 28 2009

...RED FLAG WARNING IN EFFECT FROM 11 PM THIS EVENING TO 5 PM PDT
TUESDAY FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 11 PM THIS EVENING TO 5 PM PDT
TUESDAY. THE FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

WINDS ARE EXPECTED TO INCREASE LATE TONIGHT FOR AREAS NORTH OF 
BRIDGEPORT. THESE AREAS WILL HAVE STRONG WINDS EVEN IN THE OVERNIGHT 
PERIOD...WITH LOW HUMIDITY VALUES BELOW 15 PERCENT.

A STRONG COLD FRONT WILL APPROACH THE AREA ON TUESDAY. STRONG 
SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS TO 50 MPH WILL BE
POSSIBLE BY MID-MORNING THROUGH LATE AFTERNOON. THE COLD FRONT IS
EXPECTED TO MOVE THROUGH THE AREA AROUND MID-AFTERNOON BRINGING
GUSTY AND ERRATIC WINDS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT PASSES. GUSTY AND ERRATIC WINDS ALONG THE COLD FRONT
COMBINED WITH LOW HUMIDITY WILL CAUSE CRITICAL FIRE WEATHER
CONDITIONS TONIGHT AND TUESDAY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

NVZ459-290500-
/O.UPG.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
/O.NEW.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
MINERAL AND SOUTHERN LYON COUNTIES-
1147 AM PDT MON SEP 28 2009

...RED FLAG WARNING IN EFFECT FROM 9 AM TO 5 PM PDT TUESDAY FOR 
GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 9 AM TO 5 PM PDT TUESDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A STRONG COLD FRONT WILL APPROACH THE AREA BY MID-MORNING
TUESDAY. STRONG SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS TO 50
MPH ARE POSSIBLE BEGINNING MID-MORNING TUESDAY AND CONTINUING
THROUGH THE AFTERNOON. GUSTY AND ERRATIC WINDS ARE EXPECTED ALONG
THE COLD FRONT AS IT MOVES THROUGH THE AREA. 

HUMIDITY WILL DROP TO NEAR 15 PERCENT DURING THE MORNING AND
REMAIN LOW INTO THE AFTERNOON. CONDITIONS ARE EXPECTED TO IMPROVE
BY EARLY EVENING AFTER THE FRONT PASSES. GUSTY AND ERRATIC WINDS
ALONG THE COLD FRONT COMBINED WITH LOW HUMIDITY WILL CAUSE
CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

NVZ450-290500-
/O.UPG.KREV.FW.A.0009.090929T1500Z-090930T0000Z/
/O.EXT.KREV.FW.W.0007.090928T1900Z-090930T0000Z/
WESTERN NEVADA SIERRA FRONT-
1147 AM PDT MON SEP 28 2009

...RED FLAG WARNING NOW IN EFFECT UNTIL 5 PM PDT TUESDAY FOR GUSTY
AND ERRATIC WINDS ALONG A COLD FRONT...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 5 PM PDT TUESDAY. THE
FIRE WEATHER WATCH IS NO LONGER IN EFFECT. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE SIERRA FRONT TODAY. SOUTHWEST WINDS WILL INCREASE WITH
GUSTS UP TO 35 MPH THIS AFTERNOON AND EVENING. DRY CONDITIONS
WILL PERSIST WITH HUMIDITY 5 TO 15 PERCENT ACROSS MUCH OF THE
AREA. THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS.

WINDS ON THE FOOTHILLS AND MIDSLOPES ARE EXPECTED TO CONTINUE
OVERNIGHT WITH LOW HUMIDITY AROUND 15 PERCENT.

WEST WINDS INCREASE TUESDAY MORNING WITH SPEEDS OF 20 TO 35 MPH
AND GUSTS TO 50 MPH. GUSTY AND ERRATIC WINDS ARE EXPECTED AS
THE COLD FRONT PASSES MID-DAY. THESE WINDS COMBINED WITH LOW
HUMIDITY WILL CAUSE CRITICAL FIRE WEATHER CONDITIONS ON TUESDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.  

&&

$$

CAZ270-271-278-NVZ458-290500-
/O.CON.KREV.FW.W.0007.090928T1900Z-090929T0500Z/
SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS-
EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1147 AM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PDT THIS
EVENING. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE NORTHEAST CALIFORNIA AND NORTHWEST NEVADA TODAY. SOUTHWEST
WINDS WILL INCREASE WITH GUSTS OF 30 TO 35 MPH THIS AFTERNOON AND
EVENING AHEAD OF THE FRONT. DRY CONDITIONS WILL PERSIST AHEAD OF
THE FRONT WITH HUMIDITY 10 TO 15 PERCENT ACROSS MUCH OF THE AREA.
THE COMBINATION OF GUSTY WINDS AND LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$


HTTP://WEATHER.GOV/RENO
000 
WWUS85 KREV 290510
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
1010 PM PDT MON SEP 28 2009

NVZ453-291900-
/O.EXP.KREV.FW.W.0007.000000T0000Z-090929T0500Z/
/O.CON.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
WEST CENTRAL NEVADA BASIN AND RANGE-
1010 PM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 5 PM PDT
TUESDAY FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

THE RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 5 PM PDT
TUESDAY.

A STRONG COLD FRONT WILL MOVE INTO PERSHING COUNTY BY MID MORNING
TUESDAY AND PUSH TO THE SOUTHEAST DURING THE DAY. STRONG SOUTHWEST
WINDS OF 20 TO 30 MPH WITH GUSTS TO 45 MPH ARE EXPECTED AHEAD OF
THE FRONT WITH HUMIDITY NEAR 15 PERCENT. THIS COMBINATION OF GUSTY
WINDS AND LOW HUMIDITY IS EXPECTED TO PRODUCE CRITICAL FIRE
WEATHER CONDITIONS ON TUESDAY.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY TUESDAY EVENING AFTER
THE COLD FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

CAZ270-271-278-NVZ458-290615-
/O.EXP.KREV.FW.W.0007.000000T0000Z-090929T0500Z/
SURPRISE VALLEY CALIFORNIA-WESTERN LASSEN-EASTERN PLUMAS-
EASTERN SIERRA-EASTERN NEVADA COUNTIES-EASTERN LASSEN COUNTY-
NORTHERN WASHOE COUNTY-
1010 PM PDT MON SEP 28 2009

...RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 10 PM PDT THIS EVENING. 

WINDS WILL CONTINUE TO SLOWLY DIMINISH THROUGH MIDNIGHT.
HOWEVER...RELATIVE HUMIDITY VALUES WILL REMAIN LOW OVERNIGHT...
ESPECIALLY ON THE MID SLOPES.

$$

NVZ450-291900-
/O.CON.KREV.FW.W.0007.000000T0000Z-090930T0000Z/
WESTERN NEVADA SIERRA FRONT-
1010 PM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY FOR
GUSTY ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND BRING GUSTY WINDS
TO THE SIERRA FRONT LATE TONIGHT. SOUTHWEST WIND GUSTS WILL
BRIEFLY DECREASE TO LESS THAN 30 MPH...THEN INCREASE AGAIN BEFORE
SUNRISE. RELATIVE HUMIDITY VALUES WILL REMAIN LOW OVERNIGHT WITH
RECOVERIES ON THE MID SLOPES AROUND 15 PERCENT.

WEST WINDS WILL INCREASE TUESDAY MORNING WITH SPEEDS OF 20 TO 35
MPH AND GUSTS TO 50 MPH. GUSTY AND ERRATIC WINDS ARE EXPECTED AS
THE COLD FRONT PASSES THROUGH AROUND MIDDAY. THESE WINDS COMBINED
WITH LOW HUMIDITY WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS
THROUGH TUESDAY AFTERNOON.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY TUESDAY EVENING AFTER
THE COLD FRONT EXITS THE REGION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

CAZ273-291900-
/O.CON.KREV.FW.W.0008.090929T0600Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-
1010 PM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY FOR
GUSTY ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT TUESDAY. 

WINDS ARE EXPECTED TO INCREASE LATE TONIGHT FOR AREAS NORTH OF
BRIDGEPORT. THESE AREAS WILL HAVE STRONG WINDS EVEN IN THE
OVERNIGHT PERIOD...WITH LOW HUMIDITY VALUES BELOW 15 PERCENT.

A STRONG COLD FRONT WILL APPROACH THE AREA ON TUESDAY. STRONG
SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS TO 50 MPH ARE EXPECTED
FROM MID MORNING THROUGH LATE AFTERNOON. THE COLD FRONT IS
EXPECTED TO MOVE THROUGH THE AREA AROUND MID AFTERNOON BRINGING
GUSTY AND ERRATIC WINDS. THESE WINDS COMBINED WITH LOW HUMIDITY
WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS THROUGH TUESDAY
AFTERNOON.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY TUESDAY EVENING AFTER
THE FRONT EXITS THE REGION. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ459-291900-
/O.CON.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
MINERAL AND SOUTHERN LYON COUNTIES-
1010 PM PDT MON SEP 28 2009

...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 5 PM PDT
TUESDAY FOR GUSTY ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 5 PM PDT
TUESDAY. 

A STRONG COLD FRONT WILL APPROACH THE AREA BY MID MORNING TUESDAY.
STRONG SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS TO 50 MPH ARE
EXPECTED FROM MID MORNING THROUGH LATE AFTERNOON. GUSTY AND
ERRATIC WINDS ARE EXPECTED ALONG THE COLD FRONT AS IT MOVES
THROUGH THE AREA DURING THE AFTERNOON.

HUMIDITY WILL DROP TO NEAR 15 PERCENT DURING THE MORNING AND
REMAIN LOW INTO THE AFTERNOON. THESE WINDS COMBINED WITH LOW
HUMIDITY WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS ON
TUESDAY. 

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY TUESDAY EVENING AFTER
THE FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$
MJD/MLF

HTTP://WEATHER.GOV/RENO
000 
WWUS85 KREV 291348
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
648 AM PDT TUE SEP 29 2009

CAZ272-300000-
/O.EXA.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
GREATER LAKE TAHOE AREA-
648 AM PDT TUE SEP 29 2009

...RED FLAG WARNING IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON. 

SOUTHWEST WINDS ARE EXPECTED TO INCREASE AHEAD OF A STRONG COLD
FRONT THIS MORNING WITH SPEEDS OF 20 TO 30 MPH AND GUSTS TO 50
MPH BY NOON. WIND PRONE AREAS SUCH AS BLISS STATE PARK COULD SEE
GUSTS AS HIGH AS 60 MPH. IN ADDITION...HUMIDITY WILL HOVER NEAR 20
PERCENT THROUGH MID AFTERNOON BEFORE THE COLD FRONT MOVES
THROUGH.VTHESE WINDS COMBINED WITH LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS THROUGH THIS AFTERNOON.

CONDITIONS ARE EXPECTED TO IMPROVE BY LATE THIS AFTERNOON AFTER
THE FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ453-300000-
/O.CON.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
WEST CENTRAL NEVADA BASIN AND RANGE-
648 AM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON 
FOR STRONG WINDS AND LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON.

A STRONG COLD FRONT WILL MOVE INTO PERSHING COUNTY BY MID MORNING
AND PUSH SOUTHEAST DURING THE DAY. STRONG SOUTHWEST WINDS OF 20
TO 30 MPH WITH GUSTS TO 55 MPH ARE EXPECTED AHEAD OF THE FRONT
WITH HUMIDITY NEAR 15 PERCENT. THIS COMBINATION OF STRONG WINDS
AND LOW HUMIDITY IS EXPECTED TO PRODUCE CRITICAL FIRE WEATHER
CONDITIONS ON TUESDAY.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
COLD FRONT EXITS THE REGION WITH LIGHTER WINDS AND HIGHER
HUMIDITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ450-300000-
/O.CON.KREV.FW.W.0007.000000T0000Z-090930T0000Z/
WESTERN NEVADA SIERRA FRONT-
648 AM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON 
FOR STRONG WINDS AND LOW HUMIDITY...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL APPROACH THE AREA AND MOVE THROUGH THIS
AFTERNOON. SOUTHWEST WINDS WILL CONTINUE TO INCREASE THIS MORNING
WITH SPEEDS OF 25 TO 40 MPH AND GUSTS TO 55 MPH. GUSTS IN WIND
PRONE AREAS SUCH AS GALENA AND WASHOE VALLEY WILL SEE GUSTS TO 65
MPH. RELATIVE HUMIDITY VALUES WILL REMAIN 15 TO 20 PERCENT THROUGH
MID AFTERNOON BEFORE INCREASING BEHIND THE COLD FRONT. GUSTY AND
ERRATIC WINDS ARE EXPECTED AS THE COLD FRONT PASSES THROUGH AROUND
MIDDAY. THESE WINDS COMBINED WITH LOW HUMIDITY WILL PRODUCE
CRITICAL FIRE WEATHER CONDITIONS THROUGH THIS AFTERNOON.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
COLD FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.


&&

$$

CAZ273-300000-
/O.CON.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-
648 AM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL APPROACH THE AREA ON TODAY. STRONG SOUTHWEST
WINDS OF 20 TO 35 MPH WITH GUSTS TO 50 MPH WILL DEVELOP BY MID
MORNING AND CONTINUE THROUGH LATE AFTERNOON. IN ADDITION...HUMIDITY
WILL BE FROM 15 TO 20 PERCENT ACROSS THE AREA AHEAD OF THE FRONT.
THE COLD FRONT IS EXPECTED TO MOVE THROUGH THE AREA AROUND MID
AFTERNOON BRINGING GUSTY AND ERRATIC WINDS. THESE WINDS COMBINED
WITH LOW HUMIDITY WILL PRODUCE CRITICAL FIRE WEATHER CONDITIONS
THROUGH THIS AFTERNOON.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ459-300000-
/O.CON.KREV.FW.W.0008.090929T1600Z-090930T0000Z/
MINERAL AND SOUTHERN LYON COUNTIES-
648 AM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL APPROACH THE AREA BY MID MORNING. STRONG
SOUTHWEST WINDS OF 20 TO 35 MPH WITH GUSTS TO 50 MPH ARE EXPECTED
FROM MID MORNING THROUGH LATE AFTERNOON. GUSTY AND ERRATIC WINDS
ARE EXPECTED ALONG THE COLD FRONT AS IT MOVES THROUGH THE AREA
DURING THE AFTERNOON.

HUMIDITY WILL DROP REMAIN NEAR 15 PERCENT INTO THE AFTERNOON.
THESE WINDS COMBINED WITH LOW HUMIDITY WILL PRODUCE CRITICAL FIRE
WEATHER CONDITIONS TODAY.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AFTER THE
FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$


HTTP://WEATHER.GOV/RENO

WALLMANN
000 
WWUS85 KREV 292236
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
336 PM PDT TUE SEP 29 2009

CAZ272-300000-
/O.CON.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
GREATER LAKE TAHOE AREA-
336 PM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

SOUTHWEST WINDS 20 TO 30 MPH AND GUSTS TO 50 MPH WILL CONTINUE
THROUGH THE THE REST OF THE AFTERNOON. WIND PRONE AREAS SUCH AS
BLISS STATE PARK COULD SEE GUSTS AS HIGH AS 60 MPH. IN
ADDITION...HUMIDITY WILL HOVER NEAR 20 PERCENT BEFORE THE COLD
FRONT MOVES THROUGH. GUSTY AND ERRATIC WINDS COMBINED WITH LOW
HUMIDITY WILL CONTINUE TO PRODUCE CRITICAL FIRE WEATHER
CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AS THE FRONT
EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ453-300000-
/O.CON.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
WEST CENTRAL NEVADA BASIN AND RANGE-
336 PM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL CONTINUE MOVING THROUGH THE AREA THIS
AFTERNOON. STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 55
MPH ARE EXPECTED AHEAD OF THE FRONT WITH HUMIDITY NEAR 15 PERCENT.
GUSTY AND ERRATIC WINDS COMBINED WITH LOW HUMIDITY WILL CONTINUE
TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AS THE FRONT
EXITS THE REGION WITH LIGHTER WINDS AND HIGHER HUMIDITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ450-300000-
/O.CON.KREV.FW.W.0007.000000T0000Z-090930T0000Z/
WESTERN NEVADA SIERRA FRONT-
336 PM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL CONTINUE TO MOVE THROUGH THIS AFTERNOON.
SOUTHWEST WINDS 30 TO 40 MPH AND GUSTS TO 55 MPH. GUSTS IN WIND
PRONE AREAS SUCH AS GALENA AND WASHOE VALLEY WILL SEE GUSTS TO 60
MPH. RELATIVE HUMIDITY VALUES WILL REMAIN 15 TO 20 PERCENT BEFORE
INCREASING BEHIND THE COLD FRONT. GUSTY AND ERRATIC WINDS
COMBINED WITH LOW HUMIDITY WILL CONTINUE TO PRODUCE CRITICAL FIRE
WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AS THE COLD
FRONT EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

CAZ273-300000-
/O.CON.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
MONO-EASTERN ALPINE COUNTIES-
336 PM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL CONTINUE TO MOVE THROUGH THE AREA THIS
AFTERNOON. STRONG WINDS OF 20 TO 35 MPH WITH GUSTS TO 65 MPH WILL
CONTINUE THROUGH LATE AFTERNOON. IN ADDITION... HUMIDITY WILL BE
FROM 15 TO 20 PERCENT ACROSS THE AREA AHEAD OF THE FRONT. GUSTY
AND ERRATIC WINDS COMBINED WITH LOW HUMIDITY WILL CONTINUE TO
PRODUCE CRITICAL FIRE WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AS THE FRONT
EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ459-300000-
/O.CON.KREV.FW.W.0008.000000T0000Z-090930T0000Z/
MINERAL AND SOUTHERN LYON COUNTIES-
336 PM PDT TUE SEP 29 2009

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON FOR GUSTY AND ERRATIC WINDS ALONG A COLD FRONT...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON. 

A STRONG COLD FRONT WILL CONTINUE TO MOVE THROUGH THE AREA THIS
EVENING. STRONG SOUTHWEST WINDS OF 25 TO 35 MPH WITH GUSTS TO 55
MPH ARE EXPECTED THROUGH LATE AFTERNOON. HUMIDITY WILL REMAIN
NEAR 15 PERCENT AHEAD OF THE FRONT. GUSTY AND ERRATIC WINDS
COMBINED WITH LOW HUMIDITY WILL CONTINUE TO PRODUCE CRITICAL FIRE
WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE BY EARLY EVENING AS THE FRONT
EXITS THE REGION.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$


HTTP://WEATHER.GOV/RENO
000 
WWUS85 KREV 292339
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
439 PM PDT TUE SEP 29 2009

CAZ272-273-NVZ453-459-300300-
/O.EXT.KREV.FW.W.0008.000000T0000Z-090930T0300Z/
GREATER LAKE TAHOE AREA-MONO-EASTERN ALPINE COUNTIES-
WEST CENTRAL NEVADA BASIN AND RANGE-
MINERAL AND SOUTHERN LYON COUNTIES-
439 PM PDT TUE SEP 29 2009

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR
GUSTY ERRATIC WINDS ALONG A COLD FRONT...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 8 PM PDT THIS
EVENING. 

A STRONG COLD FRONT WILL CONTINUE MOVING THROUGH THE AREA EARLY THIS
EVENING. STRONG SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 50 MPH
ARE EXPECTED. GUSTS IN WIND PRONE AREAS COULD REACH 60 MPH. HUMIDITY
WILL GENERALLY REMAIN AROUND 20 PERCENT. GUSTY AND ERRATIC WINDS
COMBINED WITH LOW HUMIDITY WILL CONTINUE TO PRODUCE CRITICAL FIRE
WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE THROUGH THE EVENING AS THE
FRONT EXITS THE REGION. WINDS WILL DECREASE BY 8 PM AND HUMIDITY
WILL INCREASE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR. CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

NVZ450-300300-
/O.EXT.KREV.FW.W.0007.000000T0000Z-090930T0300Z/
WESTERN NEVADA SIERRA FRONT-
439 PM PDT TUE SEP 29 2009

...RED FLAG WARNING NOW IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR
GUSTY ERRATIC WINDS ALONG A COLD FRONT...

THE RED FLAG WARNING IS NOW IN EFFECT UNTIL 8 PM PDT THIS
EVENING. 

A STRONG COLD FRONT WILL CONTINUE TO MOVE THROUGH EARLY THIS
EVENING. SOUTHWEST WINDS 30 TO 40 MPH AND GUSTS TO 55 MPH WILL
CONTINUE INTO THE EARLY EVENING. WIND PRONE AREAS SUCH AS GALENA
AND WASHOE VALLEY WILL SEE GUSTS TO 60 MPH. RELATIVE HUMIDITY
VALUES WILL REMAIN 15 TO 20 PERCENT BEFORE INCREASING BEHIND THE
COLD FRONT. GUSTY AND ERRATIC WINDS COMBINED WITH LOW HUMIDITY
WILL CONTINUE TO PRODUCE CRITICAL FIRE WEATHER CONDITIONS.

CONDITIONS ARE EXPECTED TO IMPROVE THROUGH THE EVENING AS THE
COLD FRONT EXITS THE REGION. WINDS WILL DECREASE BY 8 PM AND
HUMIDITY WILL INCREASE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
WILL OCCUR.  CONTINUE TO CHECK WEATHER.GOV/RENO FOR UPDATES.

&&

$$

HTTP://WEATHER.GOV/RENO
000 
WWUS85 KREV 300252
RFWREV

RED FLAG WARNING
NATIONAL WEATHER SERVICE RENO NV
752 PM PDT TUE SEP 29 2009

CAZ272-273-NVZ453-459-300400-
/O.EXP.KREV.FW.W.0008.000000T0000Z-090930T0300Z/
GREATER LAKE TAHOE AREA-MONO-EASTERN ALPINE COUNTIES-
WEST CENTRAL NEVADA BASIN AND RANGE-
MINERAL AND SOUTHERN LYON COUNTIES-
752 PM PDT TUE SEP 29 2009

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

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

WINDS WILL DECREASE THROUGH THE EVENING AS A COLD FRONT MOVES
SOUTH OF THE AREA. WHILE A FEW AREAS WILL CONTINUE TO EXPERIENCE
WIND GUSTS OF 30 TO 35 MPH THROUGH MIDNIGHT...THESE CONDITIONS
WILL NOT BE WIDESPREAD. AS THE COLD FRONT MOVES SOUTH TEMPERATURES
WILL DROP AND THE HUMIDITY WILL INCREASE THIS EVENING AND
OVERNIGHT.

$$

NVZ450-300400-
/O.EXP.KREV.FW.W.0007.000000T0000Z-090930T0300Z/
WESTERN NEVADA SIERRA FRONT-
752 PM PDT TUE SEP 29 2009

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

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

GUSTY WINDS WILL DECREASE THROUGH THE EVENING AS A COLD FRONT MOVES
SOUTH OF THE AREA. WHILE A FEW AREAS WILL CONTINUE TO EXPERIENCE
WIND GUSTS UP TO 35 MPH THROUGH MIDNIGHT...THESE CONDITIONS WILL
BE VERY LOCALIZED. AS THE COLD FRONT MOVES SOUTH TEMPERATURES
WILL DROP AND THE HUMIDITY WILL INCREASE THIS EVENING AND
OVERNIGHT.

$$
MLF/MJD

HTTP://WEATHER.GOV/RENO

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Reno, NV wrote its last area forecast discussion before this red flag warning went out at Sep 27, 2:15 PM PDT, 19 minutes earlier.

Area forecast discussion, Sep 27, 2:15 PM PDT, 19 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RENO NV
215 PM PDT SUN SEP 27 2009

.SHORT TERM...

HAVE MADE ONLY SLIGHT CHANGES TO THE ONGOING FORECAST...PRIMARILY
INCREASING POPS AND WINDS A BIT WITH INCOMING FRONTAL SYSTEM FOR
TUES.

CONSENSUS BLEND OF GFS/EC/UKMET/SREF (NAM A BIG OUTLIER) CONTINUES
TO SHOW STRONG FRONT PLOWING THROUGH THE REGION TUESDAY ASSOCIATED
WITH SIGNIFICANT TROF (2-2.5 SD BELOW NORMAL HEIGHT ANOMALIES).
CONFIDENCE WITH THIS FORECAST IS HIGH (E.G. 4 OUT OF 5) GIVEN SREFS
RELATIVELY LOW SPREADS WITH THE SYNOPTIC FEATURES. SOME VARIATIONS
IN FRONTAL SPEED DO EXIST, WHICH IS SOMETHING TO WATCH IN LATER
FORECASTS.

TIGHT THERMAL/PRESSURE GRADIENTS COUPLED WITH +2 SD 700MB WIND
ANOMALIES WILL CREATE STRONG WINDS FROM LATE MON THROUGH TUES. FOR
MORE DETAILED INFORMATION ABOUT THE WINDS, SEE THE FIRE WEATHER
DISCUSSION. WE WILL POST A LAKE WIND ADVISORY FOR PYRAMID LAKE FOR
MONDAY...AND IT IS CERTAINLY POSSIBLE THAT WE WILL END UP ISSUING
WIND ADVISORIES FOR TUESDAY GIVEN PATTERN AND STRENGTH OF THE
FRONT.

INTENSE FRONTOGENESIS ALOFT WILL YIELD SCT SHRA MAINLY NORTH OF HWY
50 TUES/TUES NGT...EVEN IN THE PRESENCE OF RELATIVELY LOW PW VALUES.
AS IS NORMAL, SURFACE FRONT REDEVELOPS TO THE EAST OF THE CWA, SO
LOCATIONS ALONG AND IMMEDIATELY EAST OF THE SIERRA FRONT WILL HAVE A
RELATIVE MIN IN PRECIP COVERAGE. COULD SEE A FEW THUNDERSTORMS AS
EC SHOWING SFC BASED LI VALUES TO NEAR ZERO TUES AFTN. A FEW SNOW
SHOWERS LIKELY ABOVE 6000FT BASED ON PROJECTED SNOW LEVELS.
TEMPERATURES BEHIND THE FRONT WILL BE DRAMATICALLY COOLER. WERE
FORECASTING HIGHS AROUND 60 IN WRN NV ON WEDNESDAY...IF WE STAY
CLOUDIER THEN TEMPS WILL BE CLOSER TO RAW GFS NUMBERS (E.G.
LOW/MID 50S).

WE WILL CONTINUE THE SPECIAL WEATHER STATEMENT FOR WINDS/TEMPS, AND
WE HAVE ALSO POSTED AN ONLINE WEATHER BRIEFING ON OUR WEBSITE
DETAILING THE PATTERN CHANGE.

CS

.LONG TERM...

ACTIVE WEATHER PATTERN WILL CONTINUE DURING THE EXTENDED PERIOD
WITH HIGH PRESSURE CENTER REMAINING WELL OFF THE WEST COAST AROUND
150W. AFTER A VERY COLD START THURSDAY MORNING...BRIEF SHORTWAVE
RIDGING OVER THE WEST COAST WILL BRING WARMING TEMPERATURES ALOFT.
SEVERAL DEGREES OF WARMING IS EXPECTED THURSDAY WITH INCREASING
WEST FLOW ALOFT BRINGING TEMPS BACK UP TO NORMAL FRIDAY.

THE INCREASE IN WEST FLOW FRIDAY IS IN RESPONSE TO THE NEXT UPPER
TROUGH WHICH SETTLES INTO THE WEST COAST NEXT WEEKEND. MODELS
GENERALLY AGREE ON INITIAL SHORTWAVE ENERGY BRUSHING NRN CA/NV
LATE FRIDAY WITH THE MAIN LOW DROPPING THROUGH THE PACNW SATURDAY.
THERE IS A DECENT MOISTURE TAP WITH THE INITIAL SHORTWAVE WHICH IS
EXPECTED TO GENERATE LIGHT TO MODERATE QPF AMOUNTS...HOWEVER IT
SHOULD ALL REMAIN NORTH OF THE CWA. THE LATEST EURO SPLITS THE
INITIAL ENERGY OFF AND DIVES IT SOUTH OVER CALIFORNIA WHERE THERE
IS MUCH LESS MOISTURE TO WORK WITH. EITHER WAY...FRIDAY AND MOST
OF FRIDAY NIGHT SHOULD REMAIN DRY.

THE STRONG LOW PRESSURE ANOMALY DROPS OVER OREGON SATURDAY
PUSHING A SURFACE FRONTAL BOUNDARY INTO NRN CA/NV. THE BROAD UPPER
LOW THEN STALLS OUT SOMEWHERE OVER OREGON OR NRN CA/NV AND
PERSISTS THROUGH THE WEEKEND. MOST MODEL RUNS HAVE A COLDER AND
STRONGER SYSTEM WHICH MAKES SENSE WITH THE CONTINENTAL ORIGINS OF
THE LOW...HOWEVER THE LATEST EURO IS TRENDING TOWARD A WARMER AND
WETTER SYSTEM. BOTH SOLUTIONS INDICATE A DECENT CHANCE FOR PRECIP
SO STARTED TRENDING POPS UPWARD SATURDAY AND SUNDAY MAINLY OVER
THE NRN ZONES. THE MAIN QUESTION WILL BE THE AMOUNT OF PRECIP AND
THE AMOUNT OF COLD AIR ASSOCIATED WITH THE LOW. THE BEST CHANCE
FOR PRECIP WILL BE SATURDAY AS THE UPPER JET DYNAMICS AND SURFACE
FRONTAL FORCING SAG INTO THE AREA...WHILE SUNDAY IS EXPECTED TO BE
INSTABILITY DRIVEN SHOWERS. JORDAN

&&

.AVIATION...

LIGHT WINDS...CLEAR SKIES...AND HOT TEMPERATURES TODAY WILL BEGIN
TO CHANGE MONDAY MORNING AS HIGH PRESSURE OVER THE WEST COAST
BREAKS DOWN. SOUTHWEST FLOW ALOFT INCREASES MONDAY MORNING WITH
GUSTS OVER SIERRA RIDGES APPROACHING 50 KTS BY 00Z MONDAY
AFTERNOON. SURFACE GUSTS SHOULD PICK UP AROUND 20Z WITH GUSTS AT
AREA TERMINALS GENERALLY 25-30 KTS.

WINDS ALOFT CONTINUE TO INCREASE MONDAY NIGHT WHILE SURFACE WINDS
ARE EXPECTED TO PERIODICALLY DROP OFF. THIS WILL CAUSE INCREASING
CONCERN FOR TURBULENCE OVER THE SIERRA AND POSSIBLY LOW LEVEL WIND
SHEAR AT KRNO. SURFACE WIND GUSTS WILL INCREASE ONCE AGAIN TUESDAY
MORNING AS A COLD FRONT APPROACHES THE AREA. GUSTS 30-35 KTS ARE
EXPECTED AFTER 18Z WITH GUSTS CLOSE TO 45 KTS POSSIBLE ALONG THE
COLD FRONT AROUND 00Z TUESDAY AFTERNOON. NO SIGNIFICANT PRECIP IS
EXPECTED WITH THE COLD FRONT HOWEVER BLOWING DUST WILL LIKELY
LOWER VISIBILITY...ESPECIALLY NEAR LOVELOCK AND FALLON. JORDAN

&&

.FIRE WEATHER...

A STRONG COLD FRONT WILL APPROACH THE PAC NW/NRN CA ON MONDAY AND
MOVE THROUGH OUR AREA ON TUESDAY. CURRENT MODELS HAVE SLOWED DOWN
THE FRONT JUST A BIT AND IN TURN 700 MB TEMPS AND THE GRADIENTS
ARE NOT AS IMPRESSIVE. HOWEVER...AHEAD OF THIS FRONT A DECENT
GRADIENT STILL DEVELOPS AND 700 MB WINDS INCREASE TO 25-30 KTS
FROM RENO NORTH LATE MONDAY AFTERNOON. WIND GUSTS OVER THE RIDGES
WILL INCREASE TO 40-50 MPH MONDAY AFTERNOON AND TO AROUND 60 MPH
DURING THE EVENING. VALLEY WIND GUSTS WILL LIKELY INCREASE TO
30-35 MPH ESPECIALLY OVER NRN AREAS AND ALONG HIGHWAY 395. THE
FIRE WEATHER WATCH WAS UPGRADED TO A RED FLAG WARNING...BUT THE
START TIME FOR THE RENO AREA WAS PUSHED BACK TO 2P. HUMIDITY HAS
BEEN DOWN IN THE SINGLE DIGITS FOR SEVERAL DAYS WITH POOR
OVERNIGHT RECOVERIES TO ONLY AROUND 15% IN MANY AREAS. HUMIDITY
MAY IMPROVE SLIGHTLY ON MONDAY...BUT ONLY TO 10-15% IN AREAS EAST
OF THE SIERRA. HUMIDITY WILL INCREASE MONDAY NIGHT...HOWEVER
CONTINUED GUSTY WINDS MAY CAUSE CRITICAL FIRE WEATHER CONDITIONS
TO PERSIST PAST SUNSET. DURING THE OVERNIGHT HOURS AS THE FRONT
APPROACHES NRN AREAS...SOME AREAS MAY HAVE PERIODS OF STRONGER
WINDS...BUT THIS WOULD LIKELY BE LESS WIDESPREAD AND ALSO HUMIDITY
WILL BE ON THE RISE TO AT LEAST 25% IN MOST AREAS.

WINDS WILL INCREASE ON TUESDAY AS THE FRONT NEARS. WINDS AHEAD OF
THE FRONT SOUTH OF INTERSTATE 80 WILL INCREASE DURING THE MORNING
WITH GUSTS UP TO 40 MPH OR HIGHER THROUGH THE AFTERNOON. DRY
CONDITIONS WILL REMAIN IN PLACE FURTHER SOUTH WITH HUMIDITY AROUND
15%. EVEN IF RH COMES UP TO 20% IN SOME AREAS CRITICAL FIRE
WEATHER CONDITIONS CAN STILL BE EXPECTED DUE TO THE STRENGTH OF
THE WINDS...ESPECIALLY IN THE FEW HOURS JUST BEFORE FRONTAL
PASSAGE. THEREFORE THE FIRE WEATHER WATCH WILL REMAIN FOR ZONES
273 AND 459. WILL LEAVE ZONE 450 OUT OF THE WATCH FOR NOW BUT
LATER SHIFTS WILL HAVE TO MONITOR IF FRONTAL PASSAGE IS SLOWER.
WINDS WILL SHIFT TO THE NORTHWEST AND REMAIN GUSTY BEHIND THE
FRONT...BUT HUMIDITY WILL BE ON THE RISE. MINIMUM HUMIDITIES NORTH
OF HIGHWAY 50 WILL LIKELY INCREASE TO AROUND 20% OR HIGHER.
GMCGUIRE

&&

.REV WATCHES/WARNINGS/ADVISORIES...
NV...RED FLAG WARNING FROM NOON TO 10 PM PDT MONDAY FOR NVZ458.

     FIRE WEATHER WATCH FROM TUESDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR NVZ459.

     RED FLAG WARNING FROM 2 PM TO 10 PM PDT MONDAY FOR NVZ450.

     LAKE WIND ADVISORY FROM 2 PM TO 8 PM PDT MONDAY FOR NVZ004.

CA...RED FLAG WARNING FROM NOON TO 10 PM PDT MONDAY FOR CAZ270-271-
     278.

     FIRE WEATHER WATCH FROM TUESDAY MORNING THROUGH TUESDAY
     AFTERNOON FOR CAZ273.

&&

HTTP://WEATHER.GOV/RENO

The office that day

Everything else NWS Reno, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 27, 6:57 AM PDTFire Weather WatchREV29 hr
Sep 27, 2:29 PM PDTLake Wind AdvisoryREVAlpine, El Dorado, Nevada, Placer54 hr

Nearby

Red Flag Warnings in California, 2009Red Flag Warnings in Nevada, 2009Every red flag warning in 2009

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.