Lightning and rain in the Northwest, Red Flag Warning in five states

lightning precipitation August 9
Lightning and precipitation for the 24-hour period ending at 6 a.m. MDT August 10, 2019. Scroll down to see a map showing precipitation for the 48-hour period ending at 5:15 a.m. PDT August 10, 2019.

Thunderstorms were prevalent in the Northwest United States on Friday with many areas receiving rain ranging from a trace to about half an inch in some locations in Northwest California and Southwest Oregon.

Thunderstorms apparently affected the route of Air Tanker 911, a DC-10, as it ferried from Moses Lake, Washington to Sacramento McClellan Friday night, lengthening the planned 600-mile flight to 749 miles.

Tanker 911 MWH to MCC
During a ferry flight from Moses Lake, Washington to Sacramento McClellan, Air Tanker 911, a DC-10, apparently had to divert around thunderstorms in Oregon, increasing the planned 600-mile flight to 749 miles, arriving at MCC at 9:27 p.m. PDT August 9, 2019. Flightaware map.
precipitation 48 hours August 10, 2019
Precipitation during the 48-hour period ending at 5:15 a.m. PDT August 10, 2019.

Some rain will continue on Saturday across Washington, Montana, and Northern Idaho.

Precipitation forecast Northwest US
Precipitation forecast for the Northwest US at 11 a.m. PDT August 10, 2019.

The threat of thunderstorms, lightning, gusty winds, or dry fuels have triggered Red Flag Warnings across six states

Red Flag Warnings
Red Flag Warnings in effect at 5 a.m. PDT August 10, 2019. Red Flag Warnings can be modified throughout the day as NWS offices around the country update and their forecasts.

Red Flag Warnings for lightning in four western states

Red Flag Warnings
Red Flag Warnings issued August 7, 2019.

The National Weather Service has issued Red Flag Warnings and Fire Weather Watches for elevated wildfire danger on August 7, 2019 for areas of California, Nevada, Oregon, and Washington.

The forecasts for these areas include thunderstorms and in some cases, lightning described as “abundant”.

(Red Flag Warnings can be modified throughout the day as NWS offices around the country update and revise their weather forecasts.)

Red Flag Warnings and Lightning strikes, August 2, 2019

Lightning strikes map
Lightning strikes during the 24-hour period ending at 4:29 a.m. MDT August 2, 2019.

Lightning strikes, above, and accumulated precipitation, below.

Accumulated precipitation
Accumulated precipitation during the 72-hour period ending at 4 a.m. MDT August 2, 2019.
Dry lightning strikes
Dry lightning strikes shown with the degree of dryness, August 1, 2019.

 

On Friday the Red Flag Warning areas in Washington, Idaho, and southwestern Montana could experience additional lightning with little or no rain.

Red Flag Warnings August 2, 2019
Red Flag Warnings August 2, 2019

Red Flag Warnings issued for five western states

The National Weather Service has issued Red Flag Warnings for elevated wildfire danger on July 18, 2019 for areas of Colorado, Wyoming, Utah, Oregon, and Washington.  As you can see on the map most of them expire Thursday night, with the exception of the warning in northwest Colorado that is in effect until 9 p.m. Friday.

The forecasts for these areas include strong winds and low humidity.

(Red Flag Warnings can be modified throughout the day as NWS offices around the country update and revise their weather forecasts.)

Red Flag Warnings July 18, 2019
Red Flag Warnings in effect July 18, 2019.

 

Red Flag Warnings in effect Tuesday and Wednesday

Areas of Colorado, Utah, Nevada, and Arizona

Red Flag Warnings Colorado Utah Nevada Arizona
Red Flag Warnings in effect July 16 and 17, 2019.

The National Weather Service has issued Red Flag Warnings for elevated wildfire danger beginning at about 11 a.m. Tuesday, July 16 for areas of Colorado, Utah, Nevada, and Arizona.  As you can see on the map they expire at various times between Tuesday night and Wednesday night.

The forecasts for those areas include strong winds and low humidity.

(Red Flag Warnings can be modified throughout the day as NWS offices around the country update and revise their weather forecasts.)