While round 1 of the atmospheric river brings widespread rainfall on Wednesday, round 2 on Thursday afternoon into Friday morning will likely bring heavier rainfall rates. Rainfall rates may exceed 0.5" per hour, with the greatest concerns for recent burn scars. * WHAT. Flooding caused by excessive rainfall is possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday afternoon through early Friday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday afternoon through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour, locally up to 0.75 inch/hour on the coastal mountain slopes. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday afternoon through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour, locally up to 0.75 inch/hour on the coastal mountain slopes. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday afternoon through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour, locally up to 0.75 inch/hour at times on the coastal mountain slopes. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday morning through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour, locally up to 0.75 inch/hour at times on the coastal mountain slopes. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday morning through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour, locally up to 0.75 inch/hour at times on the coastal mountain slopes. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday morning through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour for the coast and valleys. For the coastal slopes of the mountains rain rates of 0.50-0.75 inch/hour, locally up to 1 inch possible. - https://www.weather.gov/safety/flood

* WHAT. West winds 30 to 40 mph with gusts 50 to 60 mph expected. * WHERE. San Diego County Deserts. * WHEN. From 10 AM Thursday to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. Southwest winds 20 to 30 mph with gusts 50 to 60 mph expected. Gusts up to 65 mph expected Thursday evening into early Friday morning. Strongest winds expected on the desert mountain slopes. * WHERE. Riverside County Mountains and San Diego County Mountains. * WHEN. From 10 AM Thursday to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. Southwest winds 20 to 30 mph with gusts 50 to 60 mph expected. Gusts up to 65 mph expected Thursday evening into early Friday morning. Strongest winds expected on the desert mountain slopes. * WHERE. Riverside County Mountains and San Diego County Mountains. * WHEN. From 10 AM Thursday to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. West winds 30 to 40 mph with gusts 50 to 65 mph expected. * WHERE. San Diego County Deserts. * WHEN. From 10 AM Thursday to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From Thursday morning through late Thursday night. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall Thursday into early Friday with rainfall rates of 0.30-0.50 inch/hour for the coast and valleys. For the coastal slopes of the mountains rain rates of 0.50-0.75 inch/hour, locally up to 1 inch possible. - https://www.weather.gov/safety/flood

* WHAT. Flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of Southwest California, including the following areas, Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys and Santa Ana Mountains and Foothills. * WHEN. From 10 AM PST this morning through late tonight. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Debris flows possible in and below recent burn scars. * ADDITIONAL DETAILS. - An atmospheric river will generate moderate to heavy rainfall for this morning into early Friday with rainfall rates of 0.30-0.50 inch/hour for the coast and valleys. For the coastal slopes of the mountains rain rates of 0.50-0.75 inch/hour, locally up to 1 inch possible. - https://www.weather.gov/safety/flood

* WHAT. Southwest winds 20 to 30 mph with gusts 50 to 60 mph expected. Gusts up to 65 mph expected this evening into early Friday morning. Strongest winds expected on the desert mountain slopes. * WHERE. Riverside County Mountains and San Diego County Mountains. * WHEN. From 10 AM this morning to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

* WHAT. West winds 30 to 40 mph with gusts to 65 mph expected. * WHERE. San Diego County Deserts. * WHEN. From 10 AM this morning to 4 AM PST Saturday. * IMPACTS. Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.