Red Flag Warning for San Luis Obispo County Mountains
Official alert fields
What you need to know
- Applies to
- San Luis Obispo County Mountains
- Effective
- Ends or expires
- Official severity
- Severe
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
Impacts: Moderate risk for frequent fire starts associated with dry lightning. Additionally, there is a significant risk of large plume dominated fires with rapid fire spread and extreme fire behavior.
What the bulletin says to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information.
Full official description
Bulletin details
...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... ...RED FLAG WARNING IN EFFECT FROM FRIDAY 5 AM THROUGH 3 PM ACROSS ALL OF SAN LUIS OBISPO COUNTY TO DO POTENTIAL FOR DRY LIGHTNING... .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. Additionally, tropical moisture streaming across our area will bring a 15-25 percent chance of thunderstorms to the region, with a moderate risk for frequent fire starts across San Luis Obispo County due to dry lightning potential. The National Weather Service in Los Angeles/Oxnard has issued a Red Flag Warning for potential for dry lightning, which is in effect from 5 AM to 3 PM PDT Friday. * THUNDERSTORMS...Moderate risk for dry lightning with minimal rain as well as gusty and erratic winds. * TEMPERATURES...Highs 100 to 110 across the lower mountains, adjacent foothills, and 85 to 95 across higher mountains. Very deep mixing heights of 12,000 to 17,000 feet today, slightly lower on Friday. * IMPACTS...Moderate risk for frequent fire starts associated with dry lightning. Additionally, there is a significant risk of large plume dominated fires with rapid fire spread and extreme fire behavior.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Red Flag Warning issued August 27 at 1:33PM PDT until August 28 at 3:00PM PDT by NWS Los Angeles/Oxnard CA
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Los Angeles/Oxnard CA. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected