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Focused on weather and climatology across Southern Oregon and Northern California.

Water vapor imagery this afternoon shows a very dry airmass once again in place across our region. The orange areas are where we are seeing the driest airmass and low humidity levels at the surface. A cold front remains well offshore but if blocked by the ridge.

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We could come very close to seeing record highs develop across the region through Friday. Make sure you are well prepared for the heat and ensure you remain hydrated throughout the day. Overnight lows will struggle to cool off.

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Air Quality and Smoke Mapping 8/5/26 6 AM Smoke from numerous wildfires burning across the region are impacting air quality levels downwind of them. The first graphic shows the HRRR smoke modeling of upper level smoke by this afternoon. The second graphic is the latest air quality.

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Onshore flow has returned along the coast as we see areas of clouds and isolated fog this morning. The thermal trough is migrating inland and high temperatures are responding upward to well above normal. Look for more smoke impacts to air quality again today.

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The latest European weather model is hinting at possible light precipitation signatures showing up late next week into the week of the 17th of August. These are early indications of possible thunderstorm development. New model runs could see significant changes.

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The heaviest smoke concentration remains focused to our north. We are still seeing plenty of drift smoke but the worst areas of air quality are north and east. Smoke is moving from northwest to southeast on that larger fires this evening.

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Air Quality and Smoke Mapping 8/4/26 6 AM Smoke from numerous wildfires burning across the region are impacting air quality levels downwind of them. The first graphic shows the HRRR smoke modeling of upper level smoke by this afternoon. The second graphic is the latest air quality.

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Afternoon and evening winds will remain gusty at times today. This combined with low humidity levels will result in heightening fire spread risk. This will be especially true for the interior valleys west of the Cascades.

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High pressure continues to build across the region with clear skies and smoke from wildfires on visible satellite imagery. We are on for another hot day with highs west of the Cascades easily exceeding the 100 degree mark.

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It is a blue sky day across the region but it is being impaired by smoke as upper level winds shift and direct it to the south. We can see this quite well on the visible satellite imagery. Air quality levels will drop off as the smoke begins to move across our forecast area overnight.

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The latest 8-14 day precipitation outlook is indicating we could see above normal precipitation develop for a few areas east of the Cascades. These are early projections, but would be a blessing for the numerous destructive fires burning across Oregon and Washington.

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While we remain under control of a strong ridge of high pressure over our region, a deep area of low pressure is moving toward Alaska. You can see this system very well in the latest GOES-West airmass satellite imagery.

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Air Quality and Smoke Mapping 8/3/26 6 AM Smoke from numerous wildfires burning across the region are impacting air quality levels downwind of them. The first graphic shows the HRRR smoke modeling of upper level smoke by this afternoon. The second graphic is the latest air quality.

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NWS Medford: “Temperatures will push into the triple digits for many valleys west of the Cascades near the California and Oregon border. Warmer overnight lows and hot afternoon temperatures for multiple days will bring us moderate heat risk.”

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With a tightening pressure gradient we will see winds increase across the region over the next 24 hours. Here is a look at the latest peak wind gust forecast. Gusty winds and low humidity levels are the biggest concern for fire growth potential.

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The ridge of high pressure is strengthening across the region with offshore flow developing along the coast. The big giveaway is the lack of marine stratus clouds. We will also see smoke increase from north to south across the region as the day progresses.

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As the sun begins to set we can still see plenty of smoke from active wildfires burning east of the Cascades. With slightly cooler temperature today we did see a bit less activity on the Castle Fire in eastern Douglas County.

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NWS Medford: “Here is the latest high temperature forecast for locations in our area. This heatwave will challenge a high temperature record here in Medford on August 6th. Still cooler near the coast compared to areas inland.”

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Winds will shift to out of the north/northeast tomorrow. This will result in a decrease in air quality across our region as it moves west/southwest. Even portions of the coast could see some influence from wildfire smoke.

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Air Quality and Smoke Mapping 8/2/26 7 AM Smoke from numerous wildfires burning across the region are impacting air quality levels downwind of them. The first graphic shows the HRRR smoke modeling of upper level smoke by this afternoon. The second graphic is the latest air quality.

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Fire weather risks remain elevated over the next few days as we will continue to see gusty winds at times as a pressure gradient tightens and a strong ridge on high pressure develops across the region. Once again we need fu be extra careful to avoid any new fire starts.

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It will be another breezy to windy day across the region. The one thing that has changed is we will see a bit more moisture in the air as a dry cold front advances to the east. Here are the latest 24 hour peak wind gusts.

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