Red Flag Warning issued July 22 at 1:23PM PDT until July 23 at 8:00PM 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…

The National Weather Service in Pendleton has issued a Red Flag
Warning for abundant lightning, which is in effect from 11 AM to
8 PM PDT Thursday.

* AFFECTED AREA…Fire Weather Zone 698 Southern Blue Mountains.

* TIMING…For the first Red Flag Warning, until 11 PM PDT this
evening. For the second Red Flag Warning, from 11 AM to 8 PM
PDT Thursday.

* 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.