September 24, 2017 Special Weather Statement - Los Angeles County San Gabriel Valley (California)
Temp
 
90.7 °F
 
Dew Pt.
 
38.3 °F
 
Humidity
 
16%
 
Pressure
 
1008.6 hPa 
  falling slowly
Wind
 
4.0 mph 
    WSW
Rain
 
0.00 in 
  0.00 in/hr
UV index
 
---  
 
Solar rad.
 
100 W/m²
 
Tonight

Tonight: Clear, with a low around 58. West southwest wind around 5 mph becoming north northeast in the evening.
Clear
Monday

Monday: Sunny, with a high near 90. North northeast wind 5 to 10 mph becoming light and variable  in the afternoon.
Sunny
Lo 58 °F Hi 90 °F

Current Watches, Warnings and Advisories for Los Angeles County San Gabriel Valley (CAZ548) California

 

Special Weather Statement Special Weather Statement - Los Angeles County San Gabriel Valley (California)


Updated:Sun 24-Sep-17 02:57pm PDT
Effective:Wed 31-Dec-69 04:00pm PST
Expires:Wed 31-Dec-69 04:00pm PST
Severity:
Urgency:
Certainty:
Status:
Type:
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Areas affected:
 
Message summary: ...elevated fire danger through next weekend due to periods of gusty offshore winds with very warm and dry conditions...
An extended period of weak to locally moderate offshore winds will bring elevated fire weather concerns to much of southwest california through next weekend. Offshore winds are expected to increase in areal coverage and intensity monday through early wednesday, with gusts generally in the 30 to 40 mph range each day across the mountains and valleys of los angeles and ventura counties. Isolated gusts up to 45 mph will be possible across wind favored mountain locations. A brief period of offshore winds are expected to surface monday and tuesday mornings across the ventura county coastal plain and from malibu to the county line. The increased offshore flow will continue to bring a warming and drying trend to the region during the next few days. Temperatures are expected to climb into the 90s monday through wednesday across the valleys and portions of the coastal plain where offshore winds surface. While the offshore flow weakens some late wednesday into thursday, very warm and dry conditions will prevail away from the coast. There is the potential for another ramp up in offshore winds and even hotter temperatures next weekend, with warmest valley locations possibly exceeding 100 degrees. The combination of gusty offshore winds, very warm temperatures, low humidities, and very dry fuels will bring elevated fire danger to much of southwest california through next weekend. Brief critical fire weather conditions will be likely each day from monday through wednesday, and possibly again next weekend. As a result, there will be an increased risk for fire ignitions with a threat for large fire growth and erratic fire behavior. Residents of southwest california are urged to take extra precaution this week around sources of fire ignitions and monitor for the latest forecast updates and possible red flag warnings.
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Source: NWS Watches, Warnings or Advisories for zone CAZ548