UPDATE: Thunderstorms, Flash Floods On Tap

Although the eastern portion of the county will continue to see thunderstorms and showers into the weekend, Lake Elsinore is forecast to be sunny by Saturday.

UPDATE 7/13 3:46 p.m.: A flash flood watch that has been in place in the mountains and deserts of the Inland Empire has been expanded to include the inland valleys, the National Weather Service reported Friday afternoon.

The watch remains in effect through this evening.

An upper level low pressure system will remain over Southern California through tonight with a very moist and unstable air mass in place, the NWS reported.

Across the Inland Empire, scattered thunderstorms are forecast.

UPDATE 7/13 12:01 a.m.: The flash flood watch has been extended into Friday evening for the local mountains and deserts as wet weather continues through Saturday.

Although the eastern portion of the county will continue to see thunderstorms and showers into the weekend, Lake Elsinore is forecast to be sunny by Saturday, with a daytime high of 99 degrees. Friday's forecast for the city is partly cloudy skies and a 20 percent chance of rain, with hot temperatures reaching 98 degrees.

ORIGINAL POST 7/12: That far off rumbling noise Thursday morning is thunder.

The crashes will continue in the desert and mountain areas of Riverside County today, as summer thunderstorms threaten the region.

"Increasing moisture and instability will generate thunderstorms over the mountains and deserts during the day today," according to the National Weather Service. "Deep layer moisture will be sufficient for locally heavy rain, leading to the potential for excessive runoff in normally dry creeks and streams."

A flash flood watch for local mountains and Coachella Valley is scheduled from 11 a.m. through this evening.

In Lake Elsinore, the National Weather Service is predicting up to a 35 percent chance of rain through the morning, with a few scattered showers and thunderstorms. Temperatures will rise through the day, with the mercury expected to top near 100 degrees.

An excessive heat warning remains in effect across the region, with the desert areas expected to top at 115 degrees.

"Hot and humid conditions will continue to prevail across the southern deserts today, as a very strong ridge of high pressure remains over the intermountain west," the NWS warned in an advisory.

"A slow cooling trend will develop for Friday through the weekend, as a weak trough of low pressure develops near the west coast," according to the weather service advisory.

Martha L. Bridges July 13, 2012 at 04:32 PM
How true Ken, that is what Wildomar is considering doing with more than one new housing project. I hope they are legally bound to inform the buyers that their new homes have been built in a flood zone, and that they should purchase flood insurance. And, you don't have to look back too far over the years to see active flooding in Wildomar. Yes indeed, follow the money.
Ken Mayes July 13, 2012 at 06:01 PM
Diana Other than a small section of Corydon to the southwest of the industrial complex those buildings are not part of the lake bottom. The backside of the complex as near as I can determine from the maps available show that point to be above 1265 ft. elevation and just outside of the 500 year flood zone. Sounds to me like someone was either lied to or failed to do their homework.
Ken Mayes July 13, 2012 at 06:20 PM
Martha In the 30 years I have been here all the flooding in Wildomar has been do to P--- Poor design and maintenance not mother nature. Take Windsong Valley, the developer was required to build a concrete channel as far as the Murrieta Creek going under Palomar Road but nobody felt it necessary to connect the rest of the watershed to this channel so that part continues to run across Palomar after it crosses over the concrete channel. Sellers are required by law to notify buyers if they are in a 100 year flood zone.
Martha L. Bridges July 13, 2012 at 07:11 PM
Ken, I agree that some or much of the flooding is due to the county not insisting on the developer finishing proper flood control connections. I also understand the legal requirements of disclosure in real estate transactions, but I know from personal experience that they are not always adhered to... In addition to the flooding you mention, there are concerns about building new homes near land that could be impacted by the convergence of Slaughter Creek and Murrieta Creek which has caused serious flooding in the past to existing properties.
Scott T July 14, 2012 at 12:52 AM
Love the smell after a summer rain


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