Lightning, rain, and Red Flag Warnings in parts of California

lightning California
Lightning during the 24-hour period ending at 7 a.m. PDT August 24, 2020. The yellow strikes are the most recent.

So far the thunderstorms that Californians were worried about that could ignite even more wildfires did not have much effect in the Bay Area overnight. But lightning strikes were detected in the Sierras along with rain — none, or less than 0.05 inch generally, but some locations received more, as is the nature of thunderstorms.

In the Bay Area there is still a chance of thunderstorms Monday morning, with decreasing chances in the afternoon.

Precipitation California
Precipitation during the 24-hour period ending at 7 a.m. PDT August 24, 2020.
Red Flag Warnings for August 24, 2020 fire
Red Flag Warnings for August 24, 2020.

Red Flag Warnings in 8 states, June 27

Red Flag Warnings June 27, 2020
Red Flag Warnings June 27, 2020. NWS.

(UPDATE at 2:30 p.m. MDT June 27, 2020: the National Weather Service may or may not have correctly identified the red areas on the map as Red Flag Warning areas for today, Saturday June 27. We are checking to confirm. The image is a screenshot from the NWS web site.)


(Originally published at 9:40 a.m. MDT June 27, 2020)

The National Weather Service has issued Red Flag Warnings for June 27 in areas of Washington, Oregon, California, Nevada, Utah, Arizona, New Mexico, and Colorado. Most of the areas will experience strong winds and low humidities, resulting in enhanced wildfire danger.

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

Red Flag Warnings in seven states, June 13, 2020

Red Flag Warnings, June 13, 2020
Red Flag Warnings, June 13, 2020. NWS

The National Weather Service has issued Red Flag Warnings for June 13 in areas of Utah, Colorado, Arizona, New Mexico, Kansas, Oklahoma, and Texas. Most of the areas will experience strong winds and low humidities, resulting in enhanced wildfire danger.

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

Red Flag Warnings Sunday in areas of Montana, North Dakota, and Colorado

Red Flag Warnings April 26, 2020 fire wildfire weather
Red Flag Warnings April 26, 2020. NWS.

The National Weather Service has issued Red Flag Warnings due to low humidity and gusty winds in areas of Colorado, Montana, and North Dakota for Sunday. Most of the warnings expire Wednesday evening.

In southwest Colorado similar conditions could persist into Monday .

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

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Red Flag Warnings this weekend in six states

Red Flag Warnings 9-28
Red Flag Warnings September 28 and 29, 2019. NWS. Click to enlarge.

Red Flag Warnings are in the forecast for areas in six states this weekend.

On Saturday an area in California and Nevada south of Reno on the Sierra front of Mono and Mineral Counties will be under a Red Flag Warning for 25 to 35 mph winds with relative humidities of 15 to 25 percent.

On Sunday some locations in Utah, Colorado, Kansas, and Nebraska should expect gusty winds, dry fuels, and low humidities.

(The area shown on the map in Wyoming is for dense fog until 1 p.m. Saturday.)

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