Jefferson, OR Warnings, Watches and Advisories

When a severe thunderstorm warning is issued, the storm may produce damaging winds, large hail, dangerous lightning, and heavy rain. In some cases, heavy rainfall produced by a severe storm can also lead to flash flooding. Do not drive vehicles through flooded areas. The water depth or fast flowing water/mud/debris from a flash flood will make road conditions unsafe. Do not rely soley on data presented here or other third-party websites - always check your official national and local weather service agency website, socials, radio and/or TV stations for making critical decisions related to weather events.

Please carefully read each posted Warning and Alert as it relates to the area(s) being affected. We may provide a wider range of issued severe weather warnings for surrounding cities and counties, so some alerts may not directly impact this location. This is done to help with preparing for severe weather that may overlap or be heading towards Jefferson.

Use the Radar Maps link provided to understand the trajectory of a storm.

Red Flag Warning issued August 31 at 12:30PM PDT until August 31 at 8:00PM PDT by NWS Medford OR

* AFFECTED AREA...In California...Scott Valley in Fire Weather Zone 280, Fire Weather Zone 281, Fire Weather Zone 284 except the southeast portion of this zone, and Fire Weather Zone 285. In Oregon...Fire Weather Zone 624, except the Highway 97 corridor from Modoc Point to Chemult. * WIND...South winds 10 to 20 mph with gusts to 30 mph in the Scott Valley, and 15 to 25 mph with gusts to 35 mph in the Shasta Valley. Elsewhere, southwest winds 10 to 20 mph with gusts to 30 mph. * HUMIDITY...Minimum humidity 9 to 15 percent. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr

Frost Advisory issued August 31 at 12:19PM PDT until September 2 at 8:00AM PDT by NWS Medford OR

* WHAT...Temperatures between 38 and 33 degrees will result in frost formation. * WHERE...In California, Modoc County including the communities of Alturas, Likely, Canby, and Lookout. In Oregon, parts of Klamath County including the communities of Crescent, Chemult, Sprague River, Beatty, Bly, Dairy, Bonanza, and Lorella. Additionally, parts of Lake County including Fort Rock and across the Christmas Valley, Silver Lake, and areas just east of Lakeview. * WHEN...From 4 AM to 8 AM PDT Wednesday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. Animals who are not acclimated to colder temperatures may be harmed.

Air Quality Alert issued August 31 at 12:07PM PDT by NWS Pendleton OR

Oregon Department of Environmental Quality has issued an Air Quality Advisory until noon PDT Wednesday. For the Smoke Air Quality Advisory, wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. For additional information...please visit the Web site at http://www.oregon.gov/DEQ

Air Quality Alert issued August 31 at 11:12AM PDT by NWS Portland OR

The Oregon Department of Environmental Quality has issued an Air Quality Advisory, which is IN EFFECT UNTIL NOON PDT WEDNESDAY for eastern Marion County. An Air Quality Advisory for Smoke has been issued for eastern Marion County. Wildfires burning in the region combined with forecasted conditions will cause air quality to reach unhealthy levels at times through noon Wednesday. Pollutants in smoke can cause burning eyes, runny nose, aggravate heart and lung diseases, and aggravate other serious health problems. Limit outdoor activities and keep children indoors if it is smoky. Please follow medical advice if you have a heart or lung condition. More information about air quality can be found at: www.orcaa.org www.swcleanair.gov www.oregon.gov/DEQ www.lrapa.org