Red Flag Warning issued July 22 at 6:50AM PDT until July 22 at 11:00PM PDT by NWS Pendleton OR

…The upper level low offshore will shift to the east just
enough today to allow for monsoonal moisture to move into the
region. Instability will accompany the moisture and allow for
increased chances of isolated to scattered thunderstorms across
central Oregon and portions of the eastern mountains. Brief heavy
downpours, gusty outflow winds, small hail, and frequent lightning
will be possible…

* AFFECTED AREA…Fire Weather Zones 698 Southern Blue
Mountains, 700 Central Mountains of Oregon and 705 Southern
Deschutes National Forest.

* TIMING…From 11 AM this morning to 11 PM PDT this evening.

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

* THUNDERSTORMS…Isolated to scattered dry thunderstorms after 11
AM today.

* OUTFLOW WINDS…Gusts from 25-45 mph
A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.