Colorado, 2025

Dust Storm in Colorado, July 1, 2025

July 1, 2025 · NWS GJT · 1 event in 1 county or zone

Due to ongoing construction in and around the Grand Junction Regional Airport, days with particularly strong winds and/or outflows from nearby thunderstorms can trigger localized dust storms that reduce the visibility to less than 1 mile. Typically these events last less than 20 minutes.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS GJT wrote it up.

Due to ongoing construction in and around the Grand Junction Regional Airport, days with particularly strong winds and/or outflows from nearby thunderstorms can trigger localized dust storms that reduce the visibility to less than 1 mile. Typically these events last less than 20 minutes. However, on this day the reduction in visibility was to below 1/4 mile and lasted for approximately 2 hours.

What forecasters said that day

The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Grand Junction, CO wrote its last area forecast discussion before the first event at Jul 1, 3:06 PM MST, 1 hour 54 minutes earlier.

Area forecast discussion, Jul 1, 3:06 PM MST, 1 hour 54 minutes before
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Hazardous weather outlook, Jul 1, 1:59 AM MST, 15 hours 1 minute before
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In the hours before

Special weather statement, Jul 1, 1:09 PM MST, 3 hours 51 minutes before
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Special weather statement, Jul 1, 2:05 PM MST, 2 hours 55 minutes before
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Special weather statement, Jul 1, 2:53 PM MST, 2 hours 7 minutes before
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Special weather statement, Jul 1, 3:11 PM MST, 1 hour 49 minutes before
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Local storm report, Jul 1, 4:14 PM MST, 46 minutes before
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The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

1 dust storm. Local standard time, as filed.

Dust Storm, Grand Valley

When
July 1, 5:00 PM MST to 7:00 PM MST
Where
Grand Valley forecast zone
Reported by
ASOS
Coordinates
39.308, -108.185 (the zone’s center; the record gives no point)

The KGJT ASOS located the Grand Junction Regional Airport recorded a 2 hour period where visibility was less than 2 miles, with periods of visibility as low as 1/4 mile. During this period, sustained winds of 25-40 mph were recorded, with gusts up to 51 mph. Ongoing construction in and around the airport did contribute to the available dust to blow around, but the extended nature of this event warranted inclusion. No reports of impacts were received.

What these are

Dust Storm
Blowing dust that reduced visibility to a quarter mile or less.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Colorado in 2025Every state in 2025This day in weather historyWarnings in Colorado, July 2025

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-10-01. Each event’s entry at NCEI: 1285751.