...MONSOON MOISTURE WILL BRING SCATTERED THUNDERSTORMS TODAY AND TOMORROW...

A push of monsoon moisture will bring a mix of wet and dry scattered thunderstorms to the region this afternoon through Friday evening. Lingering dry surface air will limit the rainfall amounts on Thursday and Friday morning, increasing concern for lightning ignitions.

* AFFECTED AREA...In Idaho, Fire Weather Zones 400 Northern Boise BLM, 401 Western Payette National Forest, 402 Eastern Payette National Forest, 403 Northern Boise National Forest, 420 Treasure Valley BLM, 421 Southern Boise/Western Sawtooth NF and including the Camas Prairie. In Oregon, Fire Weather Zones 670 Burns BLM, 671 Steens Mountain and 672 Southern Grasslands.

* TIMING...Until 6 AM MDT /5 AM PDT/ Friday.

* THUNDERSTORMS...Scattered coverage with abundant lightning.

* OUTFLOW WINDS...Gusty erratic winds up to 45 mph.

* IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions are either occurring now, or will occur shortly. close

ESFBOI

Monsoon moisture will bring a threat of thunderstorms to the region through Saturday evening for much of the area. High atmospheric moisture will allow for isolated thunderstorms producing heavy rain accumulations, leading to an increased threat of flash flooding especially for the recent wildfire burn scars.

Friday and Saturday have the highest chance for locally heavy rains, especially near the ID-NV border, and high terrain in southwest Idaho.

Burn scars have the highest risk for flash flooding. Several burn scars across the area including the Wapiti burn scar near Grandjean, ID, the Fox burn scar near Richland, OR, the Tartar burn scar near Weiser, ID, the Coleman Creek burn scar near Juntura, OR and the Big Grass Fire burn scar near Jordan Valley, OR are of particular concern for flash flooding and debris flows. Please monitor the latest weather conditions if traveling near these areas. close

ESFBOI

Monsoon moisture will bring a threat of thunderstorms to the region through Saturday evening for much of the area. High atmospheric moisture will allow for isolated thunderstorms producing heavy rain accumulations, leading to an increased threat of flash flooding especially for the recent wildfire burn scars.

Friday and Saturday have the highest chance for locally heavy rains, especially near the ID-NV border, and high terrain in southwest Idaho.

Burn scars have the highest risk for flash flooding. Several burn scars across the area including the Wapiti burn scar near Grandjean, ID, the Fox burn scar near Richland, OR, the Tartar burn scar near Weiser, ID, the Coleman Creek burn scar near Juntura, OR and the Big Grass Fire burn scar near Jordan Valley, OR are of particular concern for flash flooding and debris flows. Please monitor the latest weather conditions if traveling near these areas. close

AIR QUALITY ADVISORY FROM THE OREGON DEPARTMENT OF ENVIRONMENTAL QUALITY FOR Harney and Malheur Counties

* WHAT...High concentration of smoke particulates from wildfire smoke.

* WHERE...Harney and Malheur Counties.

* WHEN...UNTIL NOON PDT FRIDAY.

* IMPACTS...Smoke can irritate the eyes, lungs and worsen some medical conditions. People most at risk to adverse health effects include infants, young children, people with heart or lung disease, older adults, and pregnant women.

* ADDITIONAL DETAILS...Smoke levels can change rapidly depending on weather. Check current conditions on the Oregon Smoke Information Blog, DEQ's Air Quality Index, or by downloading the free OregonAIR app on your smartphone.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

* Stay inside if possible. Keep windows and doors closed.

* Avoid strenuous outdoor activity.

* Use high efficiency particulate air (HEPA) filters in indoor ventilation systems or portable air purifiers.

* Be aware of smoke in your area and avoid places with the highest levels.

* If you have heart or lung disease, or asthma, follow your healthcare provider's advice.

For current Oregon air quality conditions, please visit: https://aqi.oregon.gov

For additional information, please visit: https://www.oregon.gov/deq close