National Weather Service California Nevada River Forecast Center Department of Commerce National Oceanic and Atmospheric Administration National Weather Service

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TEMESCAL CREEK - CORONA (TSLC1)
Latitude: 33.89º NLongitude: 117.56º WElevation: 600 Feet
Location: Riverside County in CaliforniaBulletin Group: Southern CaliforniaRiver Group: Southern California
Issuance Time: Jul 07 2025 at 6:50 AM PDTNext Issuance: Jul 08 2025 at 9:00 AM PDT
Action/Monitor: N/A Minor Flood: N/A Moderate Flood: N/A Major Flood: N/A

Please Note:
1) Each individual timeseries plotted on the graphical river forecast can be toggled on and off by clicking the legend entry above. If the "Observed (Raw Data)" contains bad data and is toggled off, the plot will scale to the remaining timeseries.

2) At extremely low river flows, the "Observed (Raw Data)" may show readings below the lower end of the available rating table, while the "Observed (Simulated)" will only show values at the bottom of the rating table, creating a potential discrepancy between the two readings.
Observed Data Credit
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Raw streamflow data is provided by the US Geological Survey (USGS).
View US Geological Survey (USGS) Data for this station location.

Verification - Historical Graphical RVF
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To view other verification locations, use our Historical Graphical River Forecast Interface.
Location Photographs
ESRI™ Locator Map
Official 7 Day National Weather Service Forecast   (CAZ048)
Today: Mostly sunny. Highs 92 to 99. Areas of winds west to 10 mph and becoming 10 to 15 mph this afternoon.

Tonight: Mostly clear. Lows 64 to 69. Areas of winds west to 10 mph in the evening becoming light.

Wednesday: Partly cloudy in the morning and becoming mostly sunny. Highs 95 to 102. Areas of winds west to 10 mph and becoming 10 to 15 mph in the afternoon.

Wednesday Night: Mostly clear. Lows 64 to 69. Areas of winds west 10 to 15 mph in the evening becoming light.

Thursday: Mostly sunny. Highs 95 to 102. Areas of winds southwest to 10 mph.

Thursday Night: Mostly clear. Lows 61 to 66.

Friday: Mostly sunny. Highs 90 to 97.

Friday Night: Mostly clear. Lows 59 to 64.

Saturday: Patchy fog in the morning. Mostly sunny. Highs 90 to 97.

Saturday Night: Mostly clear. Lows 59 to 63.

Sunday: Mostly sunny. Highs 91 to 98.

Sunday Night: Mostly clear. Lows 59 to 64.

Monday: Patchy fog in the morning. Mostly sunny. Highs 90 to 98.
Product Disclaimer

This river graphic is not intended to serve as a substitute for official flood watches, warnings, advisories, or statements issued by the NWS San Diego Weather Forecast Office. Observations are preliminary and subject to change. River levels identified as "forecast" should be consistent with those contained in official NWS products. River levels identified as "guidance" have significant uncertainty due to future weather or reservoir regulation and are provided for planning purposes only.