NWS / NOAA weather: Red Flag Warning issued August 27 at 9:26AM PDT until August 28 at 3:00PM PDT by NWS Los Angeles/Oxnard CA
...RED FLAG WARNING IN EFFECT THROUGH 3 PM FRIDAY FOR MANY
INTERIOR PORTIONS OF SOUTHWEST CALIFORNIA DUE TO EXTREME HEAT AND
INSTABILITY ALONG WITH LOCALLY GUSTY WINDS AND LOW HUMIDITIES...
.A very hot and unstable air mass combined with locally gusty
winds and low humidities will bring a significant risk of large
plume dominated fires with rapid spread and extreme fire
behavior.
* TEMPERATURES...Highs 100 to 110 across the lower mountains,
adjacent foothills and the Cuyama Valley, and 85 to 95 across
higher mountains. Lows in the mid 70s to mid 80s common in the
mountains and foothills.
* INSTABILITY...Very deep mixing heights of 12,000 to 20,000 feet
today, slightly lower on Friday.
* WINDS...Local west to north winds 15 to 25 mph with gusts up to
35 mph at times, strongest across the I-5 and Highway 33
corridors. A slightly stronger northerly wind push is possible
late tonight into Friday morning, with gusts up to 40 mph
possible across the I-5 corridor and other favored interior
mountain passes.
* RELATIVE HUMIDITY...Minimum humidities 10 to 20 percent each
day, with isolated values as low as 8 percent today. Poor
recoveries overnight hours in the mountains and foothills with
humidities in the 15 to 30 percent range.
* IMPACTS...There is a significant risk of large plume dominated
fires with rapid fire spread and extreme fire behavior. There
is a history of large plume dominated fires this time of year
with similar weather and fuel conditions, including the
Bridge, Bobcat, and Station fires.
- Severity
- Severe (4/5) · CAP Severe
- This month
- 1065th Weather alert at severity 4+ in the last 30 days