KF7ELY Amateur Radio

Red Flag Warning

URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
1035 PM PDT FRI AUG 5 2016

...SCATTERED DRY THUNDERSTORMS POSSIBLE THROUGH SUNDAY...

.SHOWERS AND THUNDERSTORMS WILL CONTINUE DEVELOPING ACROSS
CENTRAL OREGON...AND WILL TRACK NORTH EAST OVERNIGHT. THE EASTERN
MOUNTAINS ARE FAVORED FOR THUNDERSTORMS TONIGHT...WHERE
INSTABILITY IS GREATEST...AND HAINES IS A HIGH 5. THERE IS ALSO A
SLIGHT CHANCE ACROSS THE BLUE MOUNTAIN FOOTHILLS AND EASTERN
PORTIONS OF THE LOWER COLUMBIA BASIN...BUT THERE IS CONSIDERABLE
UNCERTAINTY DUE TO DIFFERING MODEL GUIDANCE AND A PROFOUND LACK OF
MOISTURE IN THESE AREAS. ANY STORMS COULD PRODUCE ABUNDANT
LIGHTNING AND GUSTY OUTFLOW WINDS...WITH MINIMAL RAIN. ALTHOUGH
BRIEF DOWNPOURS WILL BE POSSIBLE UNDER STORM CORES...IN GENERAL...
LESS THAN A TENTH OF AN INCH OF RAIN IS EXPECTED. ADDITIONALLY...
SURFACE RELATIVE HUMIDITY WILL BE VERY LOW THIS EVENING...AND
WINDS WILL BECOME BREEZY...ESPECIALLY ACROSS WESTERN PORTIONS OF
THE LOWER COLUMBIA BASIN. ANY NEW LIGHTNING FIRES HAVE THE
POTENTIAL TO SPREAD RAPIDLY DUE TO VERY DRY FUELS AND GUSTY WINDS.

A SECOND WAVE ASSOCIATED WITH A DEEP LOW PRESSURE SYSTEM WILL
BRING MORE THUNDERSTORMS TO THE EASTERN MOUNTAINS...AND POSSIBLY
THE WASHINGTON COLUMBIA BASIN...SATURDAY NIGHT AND SUNDAY.

ORZ640-061500-
/O.CON.KPDT.FW.W.0010.000000T0000Z-160806T1500Z/
CENTRAL MOUNTAINS OF OREGON-
1035 PM PDT FRI AUG 5 2016

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 AM PDT SATURDAY FOR
DRY THUNDERSTORMS WITH GUSTY WINDS...

* TIMING...THUNDERSTORMS WILL DEVELOP THIS EVENING...AND
  SCATTERED DRY THUNDERSTORMS COULD PERSIST THROUGH THE NIGHT.

* LIGHTNING ACTIVITY...2 TO 3...AND POSSIBLY 6.

* PRECIPITATION...LESS THAN A TENTH OF AN INCH OF RAIN.

* IMPACTS...ANY FIRES THAT DEVELOP WILL LIKELY SPREAD RAPIDLY.
  OUTDOOR BURNING IS NOT RECOMMENDED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

&&

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.