San Bernardino

Heat Advisory, Wind Advisory:

Issued at: 12:50 PM PDT on September 25, 2016, expires at: 4:00 PM PDT on September 25, 2016
  • ...Heat advisory remains in effect until 8 PM PDT Monday... ...Wind Advisory remains in effect until 4 PM PDT this afternoon...
  • winds...northeast 20 to 30 mph with gusts to 45 mph...except gusts locally to 55 mph below the Cajon Pass and through the Santa Ana Mountains.
  • Timing for winds...winds weakening through the afternoon.
  • Location for winds...strongest winds below passes and canyons and near the coastal foothills.
  • Temperatures...highs in the valleys and inland Orange County of 95 to 105 with 90s in the Santa Ana Mountains.
  • Impacts...over exposure to heat could lead to heat illness especially for people at risk...including the elderly and children. Pets are also at risk. Hazardous driving conditions for high profile vehicles.
  • Outlook..slow cooling for Tuesday with greater cooling for Wednesday. Precautionary/preparedness actions... A Wind Advisory means that winds of 35 mph are expected. Winds this strong can make driving difficult...especially for high profile vehicles. Use extra caution. Take extra precautions if you work or spend time outside. When possible... reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear light weight and loose fitting clothing when possible and drink plenty of water.

Fire Weather Warning:

Issued at: 12:24 PM PDT on September 25, 2016, expires at: 3:00 PM PDT on September 26, 2016
  • ...Red flag warning remains in effect until 3 PM PDT Monday for strong gusty winds and low humidity for the Santa Ana Mountains... the inland Empire...and inland Orange County...
  • winds...areas of northeast winds 15 to 25 mph with gusts to 35 mph...except 20 to 30 mph with gusts 45 mph below the Cajon and san gorgonio passes...and near the Santa Ana Mountains and foothills through Monday morning.
  • Relative humidity...lowest of 6 to 12 percent with poor overnight recovery.
  • Outlook...increasing humidity...decreasing wind...and gradual cooling Tuesday into Wednesday.
  • Impacts...any fires that start may exhibit extreme fire behavior and spread rapidly. Outdoor burning is not recommended. Precautionary/preparedness actions... 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 heat will contribute to extreme fire behavior.

Wind Advisory:

Issued at: 6:15 am MST on September 25, 2016/, expires at: 7:00 PM PDT on September 25, 2016
  • ...Wind Advisory remains in effect until 7 PM PDT /7 PM MST/ this evening...
  • timing...winds increasing early morning...peaking during the late morning and afternoon before subsiding early this evening.
  • Winds...north 25 to 35 mph gusts 40 to 45 mph.
  • Impacts...drivers of vans...campers...trailers...and other high profile vehicles should be alert to the danger of these winds. Boaters in the Wind Advisory area should use extreme caution when venturing onto area lakes. Strong winds over the open waters will make the lake water rough and hazardous...and may result in high waves which may tip or swamp smaller craft. For your personal safety...avoid the open waters. Stay close to shore or around protected areas. Precautionary/preparedness actions... A Wind Advisory means strong winds gusting over 40 mph can make driving difficult...especially for high profile vehicles. Use extra caution.


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