Horsethief Canyon Ranch
South Corona (33.73 N --117.43 W) Elevation 1410'
)
Official Spotter Station for the National Weather Service
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Current Season Rainfall
(July 2015- through June 2016)

 

Month

 
Automated Tipping
Bucket Gauge
Manual Fence
Mounted Gauge
   
Amount
Cumulative
Amount
Cumulative
July
 
2.03
2.03
2.04
2.04
August
         
September
  0.96 2.99 0.97 3.01
October
         
November
         
December
 
January
 
February
 
March
 
April
 
May
 
June
 
Season Total
 
2.03
2.04

 

 
 


Storm Details


Date
Rainfall
Amount
Storm
Total

Notes:
Sat, July 18th
0.50
0.50
First wave of moisture from what previously hurricane Dolores. Widespread rain across much of socal. Early morning distant thunder and lightning displays preceded this event.
Sun, July 19th
1.54
2.04
Second wave of moisture unleashed a severe thunderstorm affecting much of the inland empire. Flash flood warnings were issued across much of IE including HCR Received over a half inch of rain in 20 minutes. Over the next 8 hours HCR received steady rain with an occasional heavy downpour. By the end of the weekend HCR received over 2 inches of rain which is unprecedented for July. This weekend's storm is a 25-50 year event for this time of year. We probably won't see anything like this for a long time.
Wed, Sep 9th
0.96
0.96
Remnants of hurricane Linda combined with favorable Elsinore Convergence Zone conditions and set off a severe thunderstorm that formed just North of Horsethief (near Crossings Shopping Center). The storm was stationary and at the same time expanding to the south encompassing HCR. We received heavy rainfall (up to 1.8 inched per hour) for a period of about an hour. When all was said and done we had 0.96 inches of rain. A little further north they received 3 inches of rain. This is one of the largest single monsoon storms to hit Horsthief in the last 25 years.