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GUADALUPE CREEK - GUADALUPE RESERVOIR (GUAC1)

Latitude: 37.20º N	Longitude: 121.88º W	Elevation: 627 Feet
Location: Santa Clara County in California		Bulletin Group: Central Coast		River Group: South Bay

Issuance Time:

Dec 15, 2025 at 2:22 PM PST

Action/Monitor: N/A

Minor Flood: N/A

Moderate Flood: N/A

Major Flood: N/A

Please Note:

Ensemble forecasts produced by CNRFC only consider meteorological uncertainty and do not account for hydrologic uncertainty.

Threshold Exceedance Plot Product Information

CSV Ensemble Files (Data in kcfs): Forecast Group | GUAC1

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		Official Forecast (Deterministic)

		Prob. of Threshold Exceedance
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What information is considered in this forecast?

Verification / Historical Plots
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Official 7 Day National Weather Service Forecast (CAZ512)

Rest of Today: Partly cloudy. Highs in the upper 50s to mid 60s. North winds 5 to 10 mph.

Tonight: Mostly clear in the evening then becoming mostly cloudy. Lows in the lower 50s. North winds 5 to 10 mph.

Tuesday: Mostly cloudy. A chance of rain in the afternoon. Highs in the 60s. North winds around 5 mph.

Tuesday Night: Mostly cloudy. A chance of rain. Patchy fog after midnight. Lows in the mid 50s. Northwest winds around 5 mph. Chance of rain 50 percent.

Wednesday: Becoming partly cloudy in the afternoon. Areas of fog in the morning. Rain likely in the morning, then a slight chance of rain in the afternoon. Highs in the lower to mid 60s. Northwest winds around 5 mph. Chance of rain 60 percent.

Wednesday Night: Partly cloudy. Lows around 50.

Thursday: Partly cloudy. A slight chance of rain. Highs in the upper 50s to mid 60s.

Thursday Night: Mostly cloudy. Areas of fog. A chance of rain. Lows in the lower 50s.

Friday: Rain likely. Highs near 60.

Friday Night: Areas of fog. Rain likely. Lows in the lower 50s.

Saturday: Rain likely. Highs in the lower 60s.

Saturday Night: Patchy fog. Rain likely. Lows around 50.

Sunday: Rain likely. Highs in the mid 50s to lower 60s.

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