NWS Medford: Cooler Temps Are Arriving Sunday

We’ll have one more hot day (at least relative for this time of the year) for most interior locations today. However, afternoon temperatures will be 4-6 degrees lower on average compared to Friday.

The latest satellite image shows marine stratus over most of the marine waters, the coastal valleys, and Coquille Basin. The marine stratus is showing signs of moving inland, but ever so slowly.

An upper low will move east late tonight. The main affect initially will be a deepening marine layer which could be enough to bring patchy to areas of drizzle along the coast and just offshore overnight tonight into early Sunday morning. Sunday, the upper low will move inside with a south flow aloft ahead of it. It will be noticeably cooler compared to Saturday with more cloud cover and a chance for light rain along the coast.

As the upper low moves south on Monday, it’s currently forecasted that it will get cut off from the main flow and basically wobble around in central California next Tuesday through Friday, The position of the upper low is close enough to at least warrent a chance of showers and a slight chance of thunderstorms, with the best chance for isolated storms along and east of the Cascades and during the afternoon and early evening hours as instability will be greatest as a result in max heating in the afternoon along with a weak trigger by way of weak shortwaves moving through.

Afternoon temperatures during this time are expected to be near or slightly above normal, especially Tuesday and Wednesday.

Source: NWS

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