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NWS Pueblo COFW.W 0077August 4, 2026

Red Flag Warning: Upper Arkansas River Valley Including Lake County and Chaffee County, CO

The National Weather Service office in Pueblo issued a red flag warning for Upper Arkansas River Valley Including Lake County and Chaffee County in Colorado, which was in force until 7:00 p.m. local time on August 5. It was the 77th red flag warning the NWS office in Pueblo issued in 2026. Colorado had 9 red flag warnings in August 2026, against 6 in an average August of 2008-2025 (Colorado's red flag warnings by year).

ExpiredWarning

Issued12:33 p.m. MDT, August 4, 2026
In force from12:00 p.m. MDT, August 5, 2026
Expired7:00 p.m. MDT, August 5, 2026

In force for 7 hours; it has expired. The agency may have replaced it with a new notice.

The notice

Issued by
National Weather Service, Pueblo CO
Area
Upper Arkansas River Valley Including Lake County and Chaffee County
State
Colorado
Level
Warning
Issued
12:33 p.m. MDT, August 4, 2026
In force from
12:00 p.m. MDT, August 5, 2026
Expires
7:00 p.m. MDT, August 5, 2026
CAP severity, certainty, urgency
Severe, Likely, Expected
VTEC event
KPUB FW.W 0077
Official source
National Weather Service: the notice at its source

Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.

The notice as issued

The National Weather Service in Pueblo has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from noon to 7 PM MDT Wednesday. A Fire Weather Watch has also been issued. This Fire Weather Watch for gusty winds and low relative humidity is in effect from Thursday afternoon through Thursday evening. * AFFECTED AREA...Fire Weather Zone 220. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 6 percent. * IMPACTS...Fires will catch and spread quickly. Exercise extreme caution with any outdoor burning.

What the agency told people to do

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. A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.