San Francisco and San Mateo counties are under a severe thunderstorm warning which was released by the National Weather Service on Wednesday at 2:17 p.m. The warning is in effect until 2:45 p.m.
Residents should prepare for wind gusts of up to 60 mph.
“At 2:17 p.m., a severe thunderstorm was located near El Granada, or 8 miles southwest of Pacifica, moving northeast at 50 mph,” states the NWS San Francisco CA. “Expect damage to roofs, siding, and trees.”
Locations impacted by the warning include San Francisco, Daly City, South San Francisco, San Bruno, Pacifica, Burlingame, Millbrae, Hillsborough, El Granada, Brisbane, Colma, Broadmoor, Montara and Moss Beach.
The NWS said, “Tornadoes can develop quickly from severe thunderstorms. Seek shelter immediately in an interior room on the lowest floor of a well-built structure. Wind damage with this storm will occur before any rain or lightning. Do not wait for the sound of thunder before taking cover. Seek shelter immediately inside a sturdy structure and stay away from windows. Report severe weather to your nearest law enforcement agency or the National Weather Service office in San Francisco CA.”
Emergency alerts in the San Francisco Bay Area
All enabled mobile phones in the area will receive emergency alerts for “considerable or catastrophic” hazards. To monitor other local risk, residents are advised to sign up for county alert systems and to monitor agencies’ social media. Follow these instructions to enable your phone to receive Wireless Emergency Alerts (WEAs). To receive local alerts in the Bay Area, visit each county’s website:
Shielding yourself from approaching lightning: Expert safety guidelines
Lightning strikes the United States approximately 25 million times each year, with the bulk of these electrical discharges occurring during the summer months. Tragically, lightning claims the lives of about 20 individuals annually, as reported by the NWS. The risk of lightning-related incidents escalates as thunderstorms draw near, reaching its peak when the storm directly looms overhead. However, it gradually recedes as the tempest moves away.
To guarantee your safety in the midst of a thunderstorm, take into account the following recommendations:
Lightning safety plan:
When venturing outdoors, it’s crucial to have a lightning safety plan in place.
Stay vigilant by monitoring the sky for ominous signs and listening for the telltale sound of thunder. If thunder is audible, it’s a clear indication of nearby lightning.
Seek a safe place to shelter, preferably indoors.
Indoors safety measures:
Once you’re indoors, avoid using corded phones, electrical devices, plumbing fixtures, and stay away from windows and doors.
Lightning can follow conductive pathways, and these precautions reduce the risk of electrical surges.
Wait for the all-clear:
After the last lightning strike or thunderclap, wait at least 30 minutes before resuming outdoor activities.
It’s important to remember that lightning can strike even when a storm seems to have passed, so exercise caution.
When indoor shelter isn’t available:
If you find yourself outdoors with no access to indoor shelter during a thunderstorm, take these steps to maximize your safety:
Avoid open fields, hilltops, or ridge crests, which expose you to greater lightning risk.
Steer clear of tall, isolated trees and other prominent objects. In forested areas, stay close to lower stands of trees.
If you’re with a group, ensure individuals are spread out to prevent lightning current from transferring between people.
Camping in an open setting during a thunderstorm is strongly discouraged. If you have no alternative, set up camp in a valley, ravine, or other low-lying areas. It’s crucial to note that a tent provides no protection against lightning.
Do not approach water bodies, wet objects, or metal items. Although water and metal do not attract lightning, they conduct electricity effectively and can pose significant risks.
In summary, when facing the threat of lightning, preparedness and vigilance are your best allies. By following these guidelines, you can significantly reduce the likelihood of lightning-related incidents and prioritize your safety.
Rainy roadways ahead: Essential safety tips for heavy rain
When heavy rain sets in, the risk of flooding and hazardous driving conditions rises. Whether it’s prolonged rainfall or rapid runoff, being prepared is essential. Here are some valuable safety tips from the NWS to ensure you stay safe in heavy rain:
Beware of rapid water flow:
In heavy rain, refrain from parking or walking near culverts or drainage ditches, where swift-moving water can pose a grave danger.
Maintain safe driving distances:
Use the two-second rule to maintain a safe distance from the car in front of you and allow an extra two seconds in heavy rain.
Reduce speed and drive cautiously:
If it is raining and the roads are wet, slow down. Take your foot off the accelerator and let your speed drop gradually. Never use the brakes suddenly because this may cause the car to skid.
Choose your lane wisely:
Stay toward the middle lanes – water tends to pool in the outside lanes.
Prioritize visibility
Enhance your visibility in heavy rain by turning on your headlights. Watch out for vehicles in blind spots, as rain-smeared windows can obscure them.
Watch out for slippery roads:
The initial half-hour of rain is when roads are slickest due to a mixture of rain, grime, and oil. Exercise heightened caution during this period.
Keep a safe distance from large vehicles:
Don’t follow large trucks or buses too closely. The spray created by their large tires reduces your vision. Take care when passing them as well; if you must pass, do so quickly and safely.
Mind your windshield wipers:
Heavy rain can overload the wiper blades. When visibility is so limited that the edges of the road or other vehicles cannot be seen at a safe distance, it is time to pull over and wait for the rain to ease up. It is best to stop at rest areas or other protected areas.
If the roadside is your only option, pull off as far as possible, preferably past the end of a guard rail, and wait until the storm passes. Keep your headlights on and turn on emergency flashers to alert other drivers of your position.
By following these safety measures, you can significantly reduce risks and ensure your well-being when heavy rain pours down. Stay informed about weather conditions and heed advice from local authorities to make your journey safe and sound.
