Alert archive / Nevada / Red Flag Warnings in 2017

Red Flag Warning 8, NWS Reno, NV

July 8, 2017Washoe County, Nevada; Lassen County, California

NWS Reno, NV issued this red flag warning at Jul 8, 2017, 12:49 PM PDT for Washoe County, Nevada; Lassen County, California. It took effect at Jul 10, 2017, 11:00 AM PDT. It was in force for 12 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 8, 2017, 12:49 PM PDT (19:49 UTC)
In effect from
Jul 10, 2017, 11:00 AM PDT
Expired
Jul 10, 2017, 11:00 PM PDT
In force
12 hr
Issued by
NWS Reno, NV

Counties Lassen County, CA, Washoe County, NV

The radar

The Reno radar (KRGX), 116 km from the middle of the area, began a volume at 19:51 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

Reno, NV (KREV), launched 12:00Z, 7.8 hours before the alert went out and 205 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 2017-07-08Temperature 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, Reno, NV at 12:00Z on 2017-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 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
3026 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

908 
WWUS85 KREV 081949
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
1249 PM PDT Sat Jul 8 2017

CAZ278-NVZ450-458-091400-
/O.NEW.KREV.FW.W.0007.170709T2100Z-170710T0300Z/
/O.NEW.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
Northern Washoe County-
1249 PM PDT Sat Jul 8 2017

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT SUNDAY FOR
GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND EXTREME
NORTHEAST CALIFORNIA...

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT MONDAY FOR 
GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND EXTREME
NORTHEAST CALIFORNIA...

The National Weather Service in Reno has issued a Red Flag
Warning for gusty winds and low humidity, which is in effect from
2 PM to 8 PM PDT Sunday. a Red Flag Warning has also been issued
from 11 AM to 11 PM PDT Monday.

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone 
  450 Western Nevada Sierra Front and Fire Zone 458 Northern 
  Washoe County.

* WINDS...Southwest to west 15 to 25 mph with gusts to 40 mph.

* HUMIDITY...6 to 14 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

NVZ453-091400-
/O.NEW.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
West Central Nevada Basin and Range-
1249 PM PDT Sat Jul 8 2017

...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT MONDAY FOR 
GUSTY WINDS AND LOW HUMIDITY FOR THE CENTRAL NEVADA BASIN AND 
RANGE...

The National Weather Service in Reno has issued a Red Flag Warning
for gusty winds and low humidity, which is in effect from 11 AM 
to 11 PM PDT Monday.

* AFFECTED AREA...Fire Zone 453 West Central Nevada Basin and 
  Range.

* WINDS...Southwest to west 15 to 25 mph with gusts to 40 mph.

* HUMIDITY...6 to 11 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry 
vegetation, such as yard work, target shooting, or campfires. 
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
7 follow-up statements
456 
WWUS85 KREV 091142
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
442 AM PDT Sun Jul 9 2017

CAZ278-NVZ450-458-100000-
/O.CON.KREV.FW.W.0007.170709T2100Z-170710T0300Z/
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
Northern Washoe County-
442 AM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
8 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
NORTHWEST NEVADA AND EXTREME NORTHEAST CALIFORNIA...

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND
EXTREME NORTHEAST CALIFORNIA...

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone 
  450 Western Nevada Sierra Front and Fire Zone 458 Northern 
  Washoe County.

* WINDS TODAY...Southwest 10 to 20 mph with gusts 30 to 35 mph.

* WINDS MONDAY...Southwest to west 15 to 20 mph with gusts to 25
  mph.

* HUMIDITY...6 to 14 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

NVZ453-100000-
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
West Central Nevada Basin and Range-
442 AM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE CENTRAL NEVADA
BASIN AND RANGE...

* AFFECTED AREA...Fire Zone 453 West Central Nevada Basin and 
  Range.

* WINDS...Southwest to west 15 to 20 mph with gusts to 35 mph.

* HUMIDITY...6 to 11 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
066 
WWUS85 KREV 092219
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
319 PM PDT Sun Jul 9 2017

CAZ278-NVZ450-458-101400-
/O.CON.KREV.FW.W.0007.000000T0000Z-170710T0300Z/
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
Northern Washoe County-
319 PM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING
FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND EXTREME
NORTHEAST CALIFORNIA...
...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND
EXTREME NORTHEAST CALIFORNIA...

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone 
  450 Western Nevada Sierra Front and Fire Zone 458 Northern 
  Washoe County.

* WINDS TODAY...Southwest 10 to 20 mph with gusts 30 to 35 mph.

* WINDS MONDAY...Southwest to west 15 to 20 mph with gusts to 30
  to 40 mph.

* HUMIDITY...6 to 14 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

NVZ453-101400-
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
West Central Nevada Basin and Range-
319 PM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE CENTRAL NEVADA
BASIN AND RANGE...

* AFFECTED AREA...Fire Zone 453 West Central Nevada Basin and 
  Range.

* WINDS...Southwest to west 15 to 20 mph with gusts 30 to 40 mph.

* HUMIDITY...6 to 11 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
885 
WWUS85 KREV 100257
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
757 PM PDT Sun Jul 9 2017

CAZ278-NVZ450-458-101500-
/O.EXP.KREV.FW.W.0007.000000T0000Z-170710T0300Z/
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
Northern Washoe County-
757 PM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND
EXTREME NORTHEAST CALIFORNIA...
...RED FLAG WARNING WILL EXPIRE AT 8 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR NORTHWEST NEVADA AND EXTREME
NORTHEAST CALIFORNIA...

* Winds this evening are decreasing across the region and the Red
  Flag Warning for Sunday will be allowed to expire on time.

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone
  450 Western Nevada Sierra Front and Fire Zone 458 Northern Washoe
  County.

* WINDS MONDAY...Southwest to west 15 to 20 mph with gusts to 30 
  to 40 mph.

* HUMIDITY...6 to 14 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

NVZ453-101500-
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
West Central Nevada Basin and Range-
757 PM PDT Sun Jul 9 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM TO 11 PM PDT
MONDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR THE CENTRAL NEVADA
BASIN AND RANGE...

* AFFECTED AREA...Fire Zone 453 West Central Nevada Basin and 
  Range.

* WINDS...Southwest to west 15 to 20 mph with gusts 30 to 40 mph.

* HUMIDITY...6 to 11 percent.

* DURATION...Critical fire weather conditions may last over 6 to 
  9 hours on Monday.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
958 
WWUS85 KREV 101118
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
418 AM PDT Mon Jul 10 2017

CAZ278-NVZ450-453-458-110000-
/O.CON.KREV.FW.W.0008.170710T1800Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
West Central Nevada Basin and Range-Northern Washoe County-
418 AM PDT Mon Jul 10 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
11 PM PDT THIS EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR
EXTREME NORTHEAST CALIFORNIA AND WESTERN NEVADA AND THE CENTRAL 
NEVADA BASIN AND RANGE...

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone 
  450 Western Nevada Sierra Front, Fire Zone 453 West Central 
  Nevada Basin and Range and Fire Zone 458 Northern Washoe 
  County.

* WINDS...Southwest to west 15 to 20 mph with gusts to 35 mph.

* HUMIDITY...6 to 13 percent.

* DURATION...Critical fire weather conditions may last over 6 to 9
  hours.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
710 
WWUS85 KREV 102237
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
337 PM PDT Mon Jul 10 2017

CAZ278-NVZ450-453-458-110600-
/O.CON.KREV.FW.W.0008.000000T0000Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
West Central Nevada Basin and Range-Northern Washoe County-
337 PM PDT Mon Jul 10 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EXTREME NORTHEAST
CALIFORNIA AND WESTERN NEVADA AND THE CENTRAL NEVADA BASIN AND
RANGE...

* AFFECTED AREA...Fire Zone 278 Eastern Lassen County, Fire Zone 
  450 Western Nevada Sierra Front, Fire Zone 453 West Central 
  Nevada Basin and Range and Fire Zone 458 Northern Washoe 
  County.

* WINDS...Southwest to west 15 to 20 mph with gusts to 35 mph.

* HUMIDITY...6 to 13 percent.

* DURATION...Critical fire weather conditions may last over the
  next 4 to 7 hours.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
077 
WWUS85 KREV 110313
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
813 PM PDT Mon Jul 10 2017

CAZ278-NVZ450-458-110415-
/O.CAN.KREV.FW.W.0008.000000T0000Z-170711T0600Z/
Eastern Lassen County-Western Nevada Sierra Front-
Northern Washoe County-
813 PM PDT Mon Jul 10 2017

...RED FLAG WARNING IS CANCELLED FOR GUSTY WINDS AND LOW HUMIDITY
FOR EXTREME NORTHEAST CALIFORNIA AND WESTERN NEVADA AND THE
CENTRAL NEVADA BASIN AND RANGE...

The National Weather Service in Reno has cancelled the Red Flag 
Warning.

Winds have diminished well below red flag conditions across far
northeast California and far western Nevada although humidity 
will be slower to recover. Winds are expected to continue 
decreasing through 10 pm and therefore the red flag warning for 
these areas has been canceled.

$$

NVZ453-110600-
/O.CON.KREV.FW.W.0008.000000T0000Z-170711T0600Z/
West Central Nevada Basin and Range-
813 PM PDT Mon Jul 10 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY FOR EXTREME NORTHEAST
CALIFORNIA AND WESTERN NEVADA AND THE CENTRAL NEVADA BASIN AND
RANGE...

* AFFECTED AREA...Fire Zone 453 West Central Nevada Basin and 
  Range.

* WINDS...Southwest to west 15 to 20 mph with gusts to 35 mph.

* HUMIDITY...8 to 13 percent.

* DURATION...Critical fire weather conditions may last over the
  next 1 to 2 hours.

* IMPACTS...The combination of gusty winds and low humidity can 
  cause fire to rapidly grow in size and intensity before first 
  responders can contain them.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.

&&

$$

http://weather.gov/reno
725 
WWUS85 KREV 110551
RFWREV

URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
1051 PM PDT Mon Jul 10 2017

NVZ453-110700-
/O.EXP.KREV.FW.W.0008.000000T0000Z-170711T0600Z/
West Central Nevada Basin and Range-
1051 PM PDT Mon Jul 10 2017

...RED FLAG WARNING WILL EXPIRE AT 11 PM PDT THIS EVENING FOR
GUSTY WINDS AND LOW HUMIDITY FOR EXTREME NORTHEAST CALIFORNIA AND
WESTERN NEVADA AND THE CENTRAL NEVADA BASIN AND RANGE...

Winds were diminishing across the Basin and Range and no longer
meet red flag criteria. It will remain dry with poor mid slope 
recovery.

$$

http://weather.gov/reno

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 6:48 PM PDTSpecial Weather StatementREVLyon27 min
Jul 8, 12:49 PM PDTRed Flag WarningREVWashoe31 hr
Jul 8, 2:25 PM PDTLake Wind AdvisoryREVChurchill, Douglas, Lyon, Pershing, Storey, Washoe30 hr
Jul 8, 2:25 PM PDTLake Wind AdvisoryREVChurchill, Douglas, Lyon, Pershing, Storey, Washoe54 hr
Jul 8, 2:58 PM PDTSpecial Weather StatementREVChurchill, Douglas, Lyon, Mineral, Storey3 hr
Jul 7, 7:19 PM PDTSpecial Weather StatementREVMono56 min
Jul 7, 8:06 PM PDTAreal Flood AdvisoryREVMono3 hr

Nearby

Red Flag Warnings in Nevada, 2017Red Flag Warnings in California, 2017Every red flag warning in 2017

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.