Flash Flood Watch in the San Francisco Bay Area
Posted 4 hours ago
...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL NOON PST TODAY...
THE Flash Flood Watch continues for
* a portion of western California...including the following
locations: The entire San Francisco Bay Area and Central Coast
except for the hills of San Benito County.
* Until noon PST today
* A powerful cold front will bring heavy rain to the region. Rain
rates will approach 1 inch per hour around the time of frontal
passage Saturday morning. Heavy rainfall over a short amount of
time will likely overwhelm storm drains and result in flooding
of low lying urban areas. Also, expect rapid rises on small
streams and creeks, some of which may reach or exceed bankfull.
* Travel through low lying areas Saturday morning may be
hazardous. Do NOT drive through flooded roads.
THE Flash Flood Watch continues for
* a portion of western California...including the following
locations: The entire San Francisco Bay Area and Central Coast
except for the hills of San Benito County.
* Until noon PST today
* A powerful cold front will bring heavy rain to the region. Rain
rates will approach 1 inch per hour around the time of frontal
passage Saturday morning. Heavy rainfall over a short amount of
time will likely overwhelm storm drains and result in flooding
of low lying urban areas. Also, expect rapid rises on small
streams and creeks, some of which may reach or exceed bankfull.
* Travel through low lying areas Saturday morning may be
hazardous. Do NOT drive through flooded roads.
Recommended actions
A Flash Flood Watch means that conditions may develop that lead
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action
should Flash Flood Warnings be issued.
ready.gov
Tips from ready.gov
Before:
- Build an emergency kit and make a family communications plan.
- Elevate the furnace, water heater and electric panel in your home if you live in an area that has a high flood risk.
- Consider installing "check valves" to prevent flood water from backing up into the drains of your home.
- If feasible, construct barriers to stop floodwater from entering the building and seal walls in basements with waterproofing compounds.
- More:
- What to do before a flood.
During:
- Be aware that flash flooding can occur. If there is any possibility of a flash flood, move immediately to higher ground. Do not wait for instructions to move.
- If you must prepare to evacuate, you should do the following:
- Turn off utilities at the main switches or valves if instructed to do so. Disconnect electrical appliances. Do not touch electrical equipment if you are wet or standing in water.
- Secure your home. If you have time, bring in outdoor furniture. Move essential items to an upper floor.
- Be aware of stream, drainage channels, canyons and other areas known to flood suddenly. Flash floods can occur in these areas with or without typical warnings such as rain clouds or heavy rain.
- If you have to leave your home, remember these evacuation tips:
- Do not walk through moving water. Six inches of moving water can make you fall. If you have to walk in water, walk where the water is not moving. Use a stick to check the firmness of the ground in front of you.
- Do not drive into flooded areas. If floodwaters rise around your car, abandon the car and move to higher ground if you can do so safely. You and the vehicle can be swept away quickly.
- Do not camp or park your vehicle along streams, rivers or creeks, particularly during threatening conditions.
- More:
- What to do during a flood.
noaa.gov
What is a Flash Flood Watch?
Warning
Watch
Statement
This product is issued by the local National Weather Service office (NWFO) for events that have the potential for short duration (usually less than 6 hours) intense flooding of counties, communities, streams or areas for which the occurrence is neither certain nor imminent. This watch indicates that flash flooding is a possibility in or close to the watch area. Those in the affected area are urged to be ready to take action if a Flash Flood Warning is issued or flooding is observed. A Flash Flood Watch may be issued for potential flooding from either dam breaks, ice jam breaks, or torrential downpours.
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