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Storm Totals: December 22nd-24th, 2019

By Reginald Stanley. Posted December 24, 2019, 9:12 PM.



A slow-moving Pacific storm moved through the state late Sunday and Monday, in the form of several large fronts and showery activity behind them.

Simi Valley received heavy rain beginning Sunday evening, well before the rest of the WeatherCurrents stations. Rain entered the greater Los Angeles metropolitan area shortly before midnight, expanding over Orange County early Monday morning before briefly stalling at the Santa Ana Mountains. The storm front finally moved into the Inland Empire and San Diego County around 6 AM Monday morning. Coastal San Diego County, along with the northern half of the Temecula Valley, were among those affected by a band of persistent heavy rain Monday morning, which weakened substantially as it moved further east. Another front arrived later that morning, followed by scattered showers throughout the region continuing into early Tuesday morning.

Precipitation totals varied quite significantly, even between relatively short distances. Simi Valley was affected by the initial front for far longer than the other WeatherCurrents stations, and rain there was heavy at times - totaled 1.38 inches. In the Temecula Valley, both Wildomar and Lake Elsinore were affected by unusually heavy rainfall during the entire duration of the storm, having both received the highest storm totals with 1.92 inches and 1.39 inches respectively. Western Murrieta was also quite wet, however the rest of Murrieta as well as Temecula and French Valley were considerably drier. Perris received most of its total rainfall (1.12 inches) during the post-frontal showers throughout Monday afternoon and evening, rather than during the front itself. An example of sharply contrasting storm totals included WeatherCurrents contributors in Yucaipa, where 1.10 inches was reported (courtesy of Don Kramer) compared to East Highland to the northwest, where 0.51 inches was reported (courtesy of Peter Michas). East of Temecula, 0.44 inches was reported in Temecula Valley's Wine Country (courtesy of Jim Sappington).

Some of the eastern valleys were much drier, as the initial front lost nearly all of its energy as it traveled further inland. San Jacinto was the driest location in the WeatherCurrents network, where only 0.16 inches was recorded through Tuesday. Nearby Hemet did not fare much better, where 0.37 inches was observed. In contrast to the very wet northwestern parts of the Temecula Valley, the cities of Temecula, central and eastern Murrieta, French Valley and areas to the east were sharply drier. Temecula's total of 0.59 inches stands in contrast to the far wetter Wildomar, approximately 10 miles to the northwest where 1.92 inches fell - nearly three times wetter than Temecula. In Riverside, WeatherCurrents' station in Orangecrest experienced a rain gauge clog on Monday. Precipitation totals there are being adjusted based on extrapolated data from nearby weather stations. Other WeatherCurrents stations generally received between 0.5 and 1 inch of rain.

Here are the rain totals for the WeatherCurrents network and associates:

Location Storm Season Source
Wildomar 1.92"  6.43"  WeatherCurrents
Lake Elsinore 1.39"  6.25"  WeatherCurrents
Simi Valley 1.38"  5.48"  WeatherCurrents
Perris 1.12"  5.13"  WeatherCurrents
Yucaipa 1.10"  N/A Don Kramer
Northwest Murrieta 1.08"  5.46"  WeatherCurrents
South Fallbrook 0.82"  6.35"  WeatherCurrents
De Luz 0.73"  6.10"  WeatherCurrents
Pinon Hills 0.73"  4.23"  WeatherCurrents
Central Murrieta 0.71"  4.46"  Reginald Stanley
Riverside (Presidential Park) 0.66"  3.85"  WeatherCurrents
Anza 0.61"  6.72"  WeatherCurrents
Beaumont (Cherry Valley) 0.60"  5.51"  WeatherCurrents
South Temecula 0.59"  5.35"  WeatherCurrents
Riverside (Orangecrest) 0.56" 1 3.71"  WeatherCurrents
East Highland 0.51"  6.06"  Peter Michas
Moreno Valley 0.47"  4.47"  WeatherCurrents
Temecula Valley Wine Country 0.44"  5.74"  Jim Sappington
French Valley 0.44"  5.06"  WeatherCurrents
East Hemet 0.37"  5.52"  WeatherCurrents
San Jacinto 0.16"  3.66"  WeatherCurrents
  1. Orangecrest's total has been calculated using extrapolated data from nearby weather stations.
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The Moreno Valley, California weather pages are a service of WeatherCurrents. Moreno Valley is located in Southern California's Inland Empire, east of Riverside and north of Perris, along the State Route 60 freeway.
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