Southern California Storm Forecast: Rain, Flooding Risk, and Thunderstorms Through the Weekend

Storm System Overview

• 🌧️ A significant storm system is expected to impact Southern California from late Thursday through the weekend, bringing a substantial threat of rain.
• ⚠️ The forecast is considered tricky due to uncertainty in the system's track, with some areas like Orange County and the Inland Empire potentially seeing significant rain later in the day or overnight.
• 🌡️ Temperatures are around average, but cooler air is being drawn in, and windy conditions are anticipated, with a wind advisory in effect for parts of Santa Barbara County and high desert areas.

Flood Concerns and Burn Scars

• 🌊 The primary concern is flooding, especially in recent burn scar areas, due to the potential for several inches of rain.
• 🚨 A Flood Watch is in effect, indicating that conditions are being monitored for potential flooding, with the possibility of thunderstorms and heavy rain.
• ⚠️ The progression from a Flood Watch to an Advisory or Warning signifies an increasing likelihood or occurrence of flooding.

Weather Modeling and Thunderstorm Potential

• 📊 The European weather model is favored for its effectiveness with West Coast weather, accounting for altitude and terrain.
• ⚡ The storm system has components that increase the chance of thunderstorms, particularly on Saturday, due to tapping into warmer, moist air.
• 🏔️ Snow levels are expected to be higher, around 7,000 feet and above, due to a southerly pitch and warmer air.

Weekend and Early Week Forecast

• 🗓️ Saturday is when the chance of thunderstorms is higher due to warmer weather.
• 🌦️ Sunday is a wildcard, with a possibility of light to moderate rain or a pause in precipitation.
• ☔ More rain is expected from Monday into Tuesday with a second active system, before conditions begin to clear by Tuesday evening.
• 💨 High pressure moving east is opening the door for these storm systems, indicating a lack of blocking and a continuous flow of weather.