4v Fire

San Miguel County, New Mexico · Wildfire

No longer active Official numbers updated Sep 1, 2026 (15 days ago)

First reported about 3 weeks ago

Metric	Last report	Now	Change
Size	10 acres Aug 30, 5:00 PM	1,000 acres Sep 16, 4:00 AM +990 acres was 10 acres · Aug 30, 5:00 PM	+990 acres in 16 days
Containment	50% Sep 1, 1:00 PM	100% Sep 16, 4:00 AM +50 percent was 50% · Sep 1, 1:00 PM	+50 percent in 15 days
Crew size	—	26 Sep 16, 4:00 AM	—
Money spent	$25,000 Sep 1, 1:00 PM	$50,000 Sep 16, 4:00 AM +$25,000 was $25,000 · Sep 1, 1:00 PM	+$25,000 in 15 days

4v Fire summary

The 4v Fire is a wildfire near San Miguel County, New Mexico. It has burned about 1,000 acres (about 758 football fields). Crews have it fully contained, with a line all the way around it. It was first reported about 3 weeks ago. About 26 people are on it, run by a Type 4 IC.

Size: 1,000 acres
Containment: 100%
Discovered: August 29, 2026 (first reported about 3 weeks ago)
Cause: Not reported

The size and containment above are current as of Tuesday, September 15th at 2:00 p.m. CDT.

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Weather & fire-spread conditions

No Red Flag Warning. The National Weather Service hasn't flagged this area for dangerous fire-spread conditions right now.

Hot, dry, and windy weather can help a fire grow; cool, calm, or wet weather helps crews. The tags below rate each day for fire spread — green is calm, red can push a fire.

A general fire-weather guide (wind matters most, then how dry it is, then heat), not a prediction of what this fire will do.

This Afternoon

86°F · Chance Showers And Thunderstorms

Wind 5 to 15 mph E · 25% chance of rain

Wind: Breezy Heat: Warm Some rain

Tonight

61°F · Showers And Thunderstorms

Wind 5 to 15 mph NE · 81% chance of rain

Wind: Breezy Heat: Cool Rain likely

Wednesday

85°F · Mostly Cloudy then Showers And Thunderstorms Likely

Wind 0 to 15 mph S · 65% chance of rain

Wind: Breezy Heat: Warm Rain likely

Wednesday Night

62°F · Showers And Thunderstorms Likely

Wind 5 to 15 mph S · 72% chance of rain

Wind: Breezy Heat: Cool Rain likely

Thursday

87°F · Partly Sunny then Chance Showers And Thunderstorms

Wind 5 to 15 mph S · 44% chance of rain

Wind: Breezy Heat: Warm Some rain

Forecast from the National Weather Service (weather.gov), pulled Tuesday, September 15th at 2:02 p.m. CDT.

Could this fire move fast?

Weather isn't the only thing that changes how a fire moves. The ground matters too: how steep it is, and what's growing on it. These four numbers are for the exact spot where this fire started, not the whole fire. A big fire crosses a lot of different ground.

1° slope

Fire usually moves faster uphill than downhill. Heat and flame lean uphill, drying out the ground above the fire before it gets there.

0% tree canopy cover

The more tree cover above a fire, the easier it is for the fire to climb from the ground into the treetops. That's called a crown fire. Crown fires move faster, throw embers farther ahead of the fire, and are harder for crews to stop head-on.

4,644 ft elevation

Elevation by itself doesn't make a fire more or less dangerous. But it shapes the other three numbers here: what grows there, how dry things get, and what the weather does.

Elevation and slope from the USGS 3D Elevation Program; fuel type and canopy cover from LANDFIRE (USGS and U.S. Forest Service), pulled Thursday, September 10th at 4:01 p.m. CDT.