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: Jun 23 2025 at 7:26 AM PDTNext Issuance: Jun 24 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: Partly cloudy with patchy fog this morning and becoming sunny. Highs 79 to 84. Areas of winds south to 10 mph becoming southwest with gusts to 25 mph this afternoon.

Tonight: Clear in the evening and becoming partly cloudy overnight with patchy fog. Lows 46 to 54. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Tuesday: Partly cloudy with patchy fog in the morning and Becoming sunny. Highs 81 to 86. Areas of winds west to 10 mph and Becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

Tuesday Night: Mostly clear. Lows 50 to 57. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

Wednesday: Mostly sunny. Highs 87 to 93. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.

Wednesday Night: Clear. Lows 54 to 60.

Thursday: Mostly sunny. Highs 88 to 96.

Thursday Night: Mostly clear. Lows 56 to 61.

Friday: Mostly sunny. Highs 91 to 97.

Friday Night: Clear. Lows 56 to 63.

Saturday: Mostly sunny. Highs 91 to 99.

Saturday Night: Mostly clear. Lows 58 to 64.

Sunday: Mostly sunny. Highs 93 to 100.
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.