GACC Map

Legend

Fuel Dryness


Moist - Little or no risk for large fires.
Dry - Low risk of large fires in the absence of a "High Risk" event.
Very dry - Low/Moderate risk of large fires in the absence of a "High Risk" event.
Data Unavailable.

High Risk Events


Wind - strong winds combined with low RH (below 15%)
Dry lightning or any lightning during very hot, dry weather.

Missing Stations

  • None

Western Great Basin Area 7 Day
Significant Fire Potential

Issued: Monday, Sep 30, 2013 Parameters:


Predictive Service Area Sun
Sep 29
Mon
Sep 30
Tue
Oct 1
Wed
Oct 2
Thu
Oct 3
Fri
Oct 4
Sat
Oct 5
Sun
Oct 6
WB01 - Northwest
WB02 - Northern Mtns.
WB03 - Sierra Front
WB04 - West Central Mtns.
WB05 - Central Mountains
WB06 - Humboldt Basin
WB07 - Northeast
WB08 - West Desert
WB09 - East Central Mtns.
WB10 - Southeast Desert
WB11 - Southern Mtns.
WB12 - Southeast Mtns.
WB13 - East Desert

Weather

Strong winds continue this morning with breezy winds returning again by Wednesday/Thursday with RH dropping below 15% in some areas. 

Low pressure across the Pac NW will move east today with strong winds continuing today, especially this morning with SW-W winds 20-30 mph and gusts 40-50 mph, with locally higher gusts.  RH will remain above 20% where the stronger winds are today.  Temperatures will remain mild and just below normal early this week. 

Although the heavier precipitation is expected to remain north of the WGB, some light showers may move across far northern/northwest NV today, with drier weather, warmer temperatures and lighter winds Tuesday in most areas, although winds will remain breezy with gusts 25-30 mph over eastern NV on Tuesday. 

Another area of low pressure will move across the Pac NW and northern NV on Wednesday/Thursday with SW-W winds 15-25 mph and gusts 30-45 mph, and stronger winds at times overnight into Thursday morning.  RH will drop  to 8-15% along with the breezy winds on Wednesday over parts of the WGB, with the lowest RH along the Sierra Front into western NV.  Again, heavier precipitation will remain north of the WGB with this system, however light showers may move across northern NV on Thursday. 

Temperatures will drop to 8-18 degrees below normal from mid to late week, with temperatures warming closer to normal by the weekend as high pressure moves back into the west. 

SEE OUR MULTIMEDIA FIRE WEATHER BRIEFING AT: http://gacc.nifc.gov/wgbc/predictive/outlooks/briefing/briefing.html

SEE OUR DAY1 / DAY2 HEAT INDEX:

http://gacc.nifc.gov/wgbc/predictive/outlooks/outlook.htm

Fuels/Fire Potential

LOW significant fire potential through this week.  Fire potential may briefly increase to LOW-MODERATE over some of the drier areas of western NV if there is a start on Wednesday due to gusty winds and low RH, but will drop quickly back to LOW.

Fuel moisture remains above normal in all areas of the WGB, but has decreased due to drier weather recently.  Drought stress is still occurring over northern and western areas making fuels more critical in some areas, especially in Pinyon-Juniper and timber areas. 100-hr fuel moisture has increased to above 20th percentile or higher over most areas, and are setting records in some far northern/northwest areas due to recent snowfall and colder temperatures. 

SEE THE NATIONAL FIRE POTENTIAL MAP AThttp://psgeodata.fs.fed.us/staticmap.html

SEE A 7-DAY PROJECTION OF ERC, F100 AND F1000:
http://gacc.nifc.gov/wgbc/predictive/fuels_fire_danger/fire_indices/Fire_Indices.pdf 

Resources

Western Great Basin Area Preparedness Level is 1LIGHT IA expected through this week due to higher fuel moisture and periods of cooler temperatures.  Anticipate LOW demand for outside of area resources through this weekend. 

National Preparedness Level is 1:  LOW demand for resources in support of other geographic areas.

SEE THE MORNING REPORT AT:

http://gacc.nifc.gov/wgbc/predictive/intelligence/daily_products/morningreport.pdf

Forecasters: McGuire 9/30/2013 0759 MDT