Weather World
Western University Weather Advisories
WEATHER ALERT
Issue Date: 157 PM PDT Fri Oct 9 2026
TROPICAL STORM WATCH REMAINS IN EFFECT
LOCATIONS AFFECTED - Oceanside - Carlsbad - Chula Vista - San Diego WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 10-15 mph with gusts to 30 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for hazardous wind of equivalent tropical storm force. - PREPARE: Efforts to protect property should now be underway. Prepare for limited wind damage. - ACT: Act now to complete preparations before the wind becomes hazardous. - POTENTIAL IMPACTS: Limited - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted, especially in coastal and valley locations that don`t typically experience strong winds. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages. STORM SURGE - While true storm surge is unlikely, significant coastal flooding and beach erosion from tides over 7 feet, high surf, and increased onshore winds possible. - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Widespread coastal flooding expected. - PLAN: Coastal flooding, rough surf, coastal erosion, and life- threatening rip currents are possible. - PREPARE: Do not make plans to go to the beach. Take necessary actions to protect flood prone property. - ACT: Follow the instructions of local officials. Monitor forecasts. - POTENTIAL IMPACTS: Significant coastal flooding and beach erosion possible. Dangerous swimming conditions due to high surf and strong rip currents. FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: around 1 inch - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for major flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for major flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Strongly consider protective actions, especially if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life. - POTENTIAL IMPACTS: Extensive - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, arroyos, and ditches may become dangerous rivers. In mountain areas, destructive runoff may run quickly down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. TORNADO - LATEST LOCAL FORECAST: - Situation is unfavorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Tornadoes are not expected. Showers and thunderstorms with gusty winds may still occur. - PREPARE: Little to no preparations needed to protect against tornadoes at this time. Keep informed of the latest tornado situation. - ACT: Listen for changes in the forecast. - POTENTIAL IMPACTS: Little to None - Little to no potential impacts from tornadoes. FOR MORE INFORMATION: - sdcountyemergency.com
TROPICAL STORM WATCH REMAINS IN EFFECT
LOCATIONS AFFECTED - Oceanside - Carlsbad - Chula Vista - San Diego WIND - LATEST LOCAL FORECAST: Below tropical storm force wind - Peak Wind Forecast: 10-15 mph with gusts to 30 mph - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for wind 39 to 57 mph - The wind threat has remained nearly steady from the previous assessment. - PLAN: Plan for hazardous wind of equivalent tropical storm force. - PREPARE: Efforts to protect property should now be underway. Prepare for limited wind damage. - ACT: Act now to complete preparations before the wind becomes hazardous. - POTENTIAL IMPACTS: Limited - Damage to porches, awnings, carports, sheds, and unanchored mobile homes. Unsecured lightweight objects blown about. - Many large tree limbs broken off. A few trees snapped or uprooted, but with greater numbers in places where trees are shallow rooted, especially in coastal and valley locations that don`t typically experience strong winds. Some fences and roadway signs blown over. - A few roads impassable from debris, particularly within urban or heavily wooded places. Hazardous driving conditions on bridges and other elevated roadways. - Scattered power and communications outages. STORM SURGE - While true storm surge is unlikely, significant coastal flooding and beach erosion from tides over 7 feet, high surf, and increased onshore winds possible. - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Widespread coastal flooding expected. - PLAN: Coastal flooding, rough surf, coastal erosion, and life- threatening rip currents are possible. - PREPARE: Do not make plans to go to the beach. Take necessary actions to protect flood prone property. - ACT: Follow the instructions of local officials. Monitor forecasts. - POTENTIAL IMPACTS: Significant coastal flooding and beach erosion possible. Dangerous swimming conditions due to high surf and strong rip currents. FLOODING RAIN - LATEST LOCAL FORECAST: Flood Watch is in effect - Peak Rainfall Amounts: around 1 inch - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Potential for major flooding rain - The flooding rain threat has remained nearly steady from the previous assessment. - PLAN: Emergency plans should include the potential for major flooding from heavy rain. Evacuations and rescues are likely. - PREPARE: Strongly consider protective actions, especially if you are in an area vulnerable to flooding. - ACT: Heed any flood watches and warnings. Failure to take action will likely result in serious injury or loss of life. - POTENTIAL IMPACTS: Extensive - Major rainfall flooding may prompt many evacuations and rescues. - Rivers and tributaries may rapidly overflow their banks in multiple places. Small streams, creeks, canals, arroyos, and ditches may become dangerous rivers. In mountain areas, destructive runoff may run quickly down valleys while increasing susceptibility to rockslides and mudslides. Flood control systems and barriers may become stressed. - Flood waters can enter many structures within multiple communities, some structures becoming uninhabitable or washed away. Many places where flood waters may cover escape routes. Streets and parking lots become rivers of moving water with underpasses submerged. Driving conditions become dangerous. Many road and bridge closures with some weakened or washed out. TORNADO - LATEST LOCAL FORECAST: - Situation is unfavorable for tornadoes - THREAT TO LIFE AND PROPERTY THAT INCLUDES TYPICAL FORECAST UNCERTAINTY IN TRACK, SIZE AND INTENSITY: Tornadoes not expected - The tornado threat has remained nearly steady from the previous assessment. - PLAN: Tornadoes are not expected. Showers and thunderstorms with gusty winds may still occur. - PREPARE: Little to no preparations needed to protect against tornadoes at this time. Keep informed of the latest tornado situation. - ACT: Listen for changes in the forecast. - POTENTIAL IMPACTS: Little to None - Little to no potential impacts from tornadoes. FOR MORE INFORMATION: - sdcountyemergency.com
FLOOD WARNING
Issue Date: 142 PM PDT Fri Oct 9 2026
COASTAL FLOOD WARNING IN EFFECT UNTIL 3 PM PDT SUNDAY
BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING
COASTAL FLOOD ADVISORY IN EFFECT FROM 3 PM SUNDAY TO 2 PM PDT TUESDAY
WHAT
For the Coastal Flood Warning, significant coastal flooding and erosion possible. For the Beach Hazards Statement, surf of 5 to 7 feet with local sets up to 9 feet. For the Coastal Flood Advisory, minor coastal flooding expected. WHERE
San Diego County Coastal Areas and Orange County Coastal Areas. WHEN
For the Coastal Flood Warning, until 3 PM PDT Sunday. For the Beach Hazards Statement, from Sunday morning through Sunday evening. For the Coastal Flood Advisory, from 3 PM Sunday to 2 PM PDT Tuesday. IMPACTS
Numerous roads and walking paths may be closed due to high water. Low-lying property including homes, businesses, and some critical infrastructure may flood. Shoreline erosion will occur during high tides in the mornings. Increased surf will lead to a high risk of rip currents. ADDITIONAL DETAILS
Greatest impacts on Sunday morning from Tropical Storm Rachel in combination of increased swell, onshore winds, and high tides locally over 7 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Remain out of the water to avoid hazardous swimming conditions. &&
COASTAL FLOOD WARNING IN EFFECT UNTIL 3 PM PDT SUNDAY
BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY MORNING THROUGH SUNDAY EVENING
COASTAL FLOOD ADVISORY IN EFFECT FROM 3 PM SUNDAY TO 2 PM PDT TUESDAY
WHAT
For the Coastal Flood Warning, significant coastal flooding and erosion possible. For the Beach Hazards Statement, surf of 5 to 7 feet with local sets up to 9 feet. For the Coastal Flood Advisory, minor coastal flooding expected. WHERE
San Diego County Coastal Areas and Orange County Coastal Areas. WHEN
For the Coastal Flood Warning, until 3 PM PDT Sunday. For the Beach Hazards Statement, from Sunday morning through Sunday evening. For the Coastal Flood Advisory, from 3 PM Sunday to 2 PM PDT Tuesday. IMPACTS
Numerous roads and walking paths may be closed due to high water. Low-lying property including homes, businesses, and some critical infrastructure may flood. Shoreline erosion will occur during high tides in the mornings. Increased surf will lead to a high risk of rip currents. ADDITIONAL DETAILS
Greatest impacts on Sunday morning from Tropical Storm Rachel in combination of increased swell, onshore winds, and high tides locally over 7 feet.
PRECAUTIONARY/PREPAREDNESS ACTIONS
Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. Remain out of the water to avoid hazardous swimming conditions. &&
FLOOD WATCH
Issue Date: 1216 PM PDT Fri Oct 9 2026
FLOOD WATCH IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY EVENING
WHAT
Flooding caused by excessive rainfall is possible. WHERE
A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, Coachella Valley, Riverside County Mountains, San Bernardino County Mountains, San Diego County Coastal Areas, San Diego County Deserts, San Diego County Mountains, San Diego County Valleys and San Gorgonio Pass near Banning. WHEN
From Saturday evening through Sunday evening. IMPACTS
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. ADDITIONAL DETAILS
- Tropical Storm Rachel will bring periods of moderate to heavy rain to all of San Diego County, Riverside County mountains and deserts, and San Bernardino County mountains and deserts. Maximum hourly rainfall rates of 0.50 to 0.60 inches per hour are possible for San Diego Coast and Valleys. Maximum hourly rainfall rates of 0.50 to 0.70 inches per hour are possible across area deserts and 0.70 to 1 inch per hour rates are possible across area mountains. Heaviest rainfall is most likely late Saturday night through Sunday afternoon. - https://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
FLOOD WATCH IN EFFECT FROM SATURDAY EVENING THROUGH SUNDAY EVENING
WHAT
Flooding caused by excessive rainfall is possible. WHERE
A portion of Southwest California, including the following areas, Apple and Lucerne Valleys, Coachella Valley, Riverside County Mountains, San Bernardino County Mountains, San Diego County Coastal Areas, San Diego County Deserts, San Diego County Mountains, San Diego County Valleys and San Gorgonio Pass near Banning. WHEN
From Saturday evening through Sunday evening. IMPACTS
Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. ADDITIONAL DETAILS
- Tropical Storm Rachel will bring periods of moderate to heavy rain to all of San Diego County, Riverside County mountains and deserts, and San Bernardino County mountains and deserts. Maximum hourly rainfall rates of 0.50 to 0.60 inches per hour are possible for San Diego Coast and Valleys. Maximum hourly rainfall rates of 0.50 to 0.70 inches per hour are possible across area deserts and 0.70 to 1 inch per hour rates are possible across area mountains. Heaviest rainfall is most likely late Saturday night through Sunday afternoon. - https://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
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