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Pacific Storm To Bring Rain, Flooding To San Diego County

Clouds over San Diego State University, Feb. 17, 2017.
KPBS Staff
Clouds over San Diego State University, Feb. 17, 2017.
Pacific Storm To Bring Rain, Flooding To San Diego County
Pacific Storm To Bring Rain, Flooding To San Diego County GUEST:Alex Tardy, warning coordination meteorologist, National Weather Service

Our top story in midday addition, we have seen a lot of rain this season, but not many of our storms come with the adjectives serious, or dangerous. That is what meteorologists are saying about the weather today and tomorrow. High surf, howling winds, urban flooding and areas of torrential rain. This storm, which was in our forecast for a week, has apparently gotten substantially stronger. Join to make to talk about this serious weather, is Alex tardy, warning coordinates welcome to the store. How has this storm gotten so storm strong as it has headed toward. We get storms in our region, they come in all shapes and sizes. Some last two or three days, others last for just a couple of hours. This particular storm is not going to be remembered for its duration. It is going to be remembered for coming in like a wall. Then slamming us. The reason why is the low pressure, the pressure that makes us have pains that we can feel, that low pressure is deeper than we have seen with any storm in the past 20 or 30 years. It is moving right down the California coast. So for us, that means a vicious period of wind and then a long with the wind, and behind the wind, and intense five hour period of heavy rain. How strong will the winds got? What we are expecting with this front moving through, between 3 PM and 7 PM, that's the target period, we are expecting almost every location to see 50 mile-per-hour winds. Some locations might get up to 60 miles per hour during that three or four hour period. Even a few locations on the coast, and the city and Metro area, touching 70-75 miles per hour. It is wind, you can compare it to maybe a high in tropical storm, or a week working. And it's only going to last for a few hours. But while it is windy, it will be intense and it's also going to be producing some really heavy rain during that same period. We have already had a number of storm related warnings, by the National Weather Service, there is a high surf warning, what else is in effect we expect we have a high wind warning out, and that means that confidence is high for widespread high winds. Not just winds that make the trees way, but winds that can dock the trees down. -- Toppled over, a prison. Damage rooftops, like we saw a couple of weeks ago, it becomes dangerous because trees are sporadically falling down, and it is not a time to be outside between three 3:00 and 7:00. It will be dangerous. Roofs and shingles could peel off and any object that is not secured, could become a project all and be thrown around. The worst conditions will be right on the coast. So point Lubbock, Imperial Beach, Delmar, La Jolla. All of those places on the coast. It will be a little lighter is ago when word but we will see gusts to 60 all way up to Escondido. Is this one of those storms that will be worse in orange county or will we get hit by the brunt of it? What will be worst in LA, and they are getting right now, they're going to get more rainfall. So they will have the bragging rights to the rainfall. They will get 3-4 inches even in the cities up there. For us, it looks like we will get an inch and a half or 2 inches of rain in a very short period of time, at about four hours. In what we call a squall line of rain coming. But we are going to have the bragging rights for the wind. It looks like our region up into southern orange county, like Laguna Beach, takes the brunt of the winds. Point Loma to Laguna Beach, that's where we will see the most of your winds. There is a great deal of concern about the surf and the high tides, isn't there? Yes, it will be extremely dangerous in the waters. Starting very shortly, this afternoon, and continuing into early this evening. We have a gale warning out in that area. And we usually don't issue those, and we are expecting surf and some locations to exceed 12 feet. It will be a choppy serve to, because there will be so much local wind. It is very dangerous, and the wind will drive the waves, a big swell, horizontal rain, and all slamming up against the coast. To throw little bit more in, we may even see some lightning strikes. Is this expected to last into tomorrow? We think we will have a break between 8 PM and 11 PM, so after 8 PM, you should see the winds come way down. The rain will taper off, and maybe have some light showers. After midnight, we think there will be another round coming in, round two. That will come in after midnight and gives us another good soaking with maybe another half inch of rain. But the wind with lat -- with that will be a lot less. We will see 40 miles per hour instead of 60 mile-per-hour winds. I've been speaking with Alex tardy, meteorologist with the National Weather Service. Thank you so much.

A high wind warning, a flash flood watch and high surf warning are in the forecast for San Diego County Friday and Saturday as a strong Pacific storm is expected to bring heavy precipitation with the possibility of thunderstorms that may cause flooding.

A gale warning for boaters was issued by the National Weather Service, with seas expected to peak at 17 feet and waves at local beaches reaching 15 feet. Wind gusts could reach 70 mph in local mountains.

Pacific Storm To Bring Rain, Flooding To San Diego County

Snow levels are expected to be around 6,500 to 7,500 feet during the heaviest band of precipitation, according to the NWS.

The strongest winds are expected Friday, and gusts may down trees and powerlines and could possibly damage some structures.

A car crushed by a palm tree that was knocked down by strong winds in downtown San Diego, Feb. 17, 2017.
Matthew Bowler
A car crushed by a palm tree that was knocked down by strong winds in downtown San Diego, Feb. 17, 2017.

Forecasters said that while heavy snow will be confined to higher areas, strong winds are likely at all elevations.

Two-day rainfall totals will likely be substantial, along with very strong winds making for hazardous travel conditions and possible tree damage, according to the NWS.

"Heavy rainfall rates may cause flash flooding, debris flows and possible river flooding," according to the NWS.

The winds are expected to weaken Saturday morning. Rain showers and mountain snow could continue Saturday, but the region should dry out for the most part on Sunday, although light rain may possibly fall in some areas into Monday, according to the NWS. The high surf is expected to gradually diminish through Sunday night.