Alert archive / Colorado / Red Flag Warnings in 2024

Red Flag Warning 17, NWS Denver/Boulder, CO

June 15, 20248 counties in Colorado

NWS Denver/Boulder, CO issued this red flag warning at Jun 15, 2024, 2:32 PM MDT for 8 counties in Colorado. It took effect at Jun 16, 2024, 12:00 PM MDT. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 15, 2024, 2:32 PM MDT (20:32 UTC)
In effect from: Jun 16, 2024, 12:00 PM MDT
Expired: Jun 16, 2024, 6:00 PM MDT
In force: 6 hr
Issued by: NWS Denver/Boulder, CO

Counties Adams County, CO, Arapahoe County, CO, Douglas County, CO, Elbert County, CO, Grand County, CO, Lincoln County, CO, Park County, CO, Summit County, CO

The radar

The Denver radar (KFTG), 44 km from the middle of the area, began a volume at 20:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Grand Junction, CO (KGJT), launched 12:00Z, 8.5 hours before the alert went out and 312 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1853 m above ground
0-6 km bulk shear: 33 kt
0-1 km storm-relative helicity: 43 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Denver/Boulder, CO wrote its last area forecast discussion before this red flag warning went out at Jun 15, 11:27 AM MDT, 3 hours 5 minutes earlier.

Area forecast discussion, Jun 15, 11:27 AM MDT, 3 hours 5 minutes before

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Hazardous weather outlook, Jun 15, 10:46 AM MDT, 3 hours 46 minutes before

Hazardous Weather Outlook
National Weather Service Denver/Boulder CO
1046 AM MDT Sat Jun 15 2024

COZ030>051-161700-
Jackson County Below 9000 Feet-
West Jackson and West Grand Counties Above 9000 Feet-
Grand and Summit Counties Below 9000 Feet-
South and East Jackson/Larimer/North and Northeast Grand/
Northwest Boulder Counties Above 9000 Feet-
South and Southeast Grand/West Central and Southwest Boulder/
Gilpin/Clear Creek/Summit/North and West Park Counties Above
9000 Feet-Larimer and Boulder Counties Between 6000 and 9000 Feet-
Jefferson and West Douglas Counties Above 6000 Feet/Gilpin/Clear
Creek/Northeast Park Counties Below 9000 Feet-
Central and Southeast Park County-
Larimer County Below 6000 Feet/Northwest Weld County-
Boulder And Jefferson Counties Below 6000 Feet/West Broomfield
County-
North Douglas County Below 6000 Feet/Denver/West Adams and
Arapahoe Counties/East Broomfield County-
Elbert/Central and East Douglas Counties Above 6000 Feet-
Northeast Weld County-Central and South Weld County-Morgan County-
Central and East Adams and Arapahoe Counties-
North and Northeast Elbert County Below 6000 Feet/North Lincoln
County-
Southeast Elbert County Below 6000 Feet/South Lincoln County-
Logan County-Washington County-Sedgwick County-Phillips County-
1046 AM MDT Sat Jun 15 2024

This hazardous weather outlook is for northeast and north central
Colorado.

.DAY ONE...Today and Tonight

Warmer temperatures are expected this afternoon with highs in the
plains near 90 degrees. Isolated afternoon showers are possible
across the Front Range mountains and foothills into the urban
corridor. These showers could produce briefly gusty winds.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Hot and mainly dry weather will continue Sunday and Monday
with temperatures above 90 across the urban corridor and plains.
A cold front will bring cooler temperatures for the plains on
Tuesday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed today or tonight.

In the hours before

Special weather statement, Jun 15, 1:16 PM MDT, 1 hour 16 minutes before

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Special weather statement, Jun 15, 1:20 PM MDT, 1 hour 12 minutes before

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Special weather statement, Jun 15, 1:52 PM MDT, 40 minutes before

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Special weather statement, Jun 15, 2:12 PM MDT, 20 minutes before

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Special weather statement, Jun 15, 2:27 PM MDT, 5 minutes before

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The office that day

Everything else NWS Denver/Boulder, CO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 14, 8:47 PM MDT	Special Weather Statement	BOU	Logan	43 min
Jun 15, 1:16 PM MDT	Special Weather Statement	BOU	Weld	44 min
Jun 15, 1:20 PM MDT	Special Weather Statement	BOU	Douglas	25 min
Jun 15, 1:52 PM MDT	Special Weather Statement	BOU	Weld	23 min
Jun 15, 2:12 PM MDT	Special Weather Statement	BOU	Weld	33 min
Jun 15, 2:35 PM MDT	Heat Advisory	BOU	Adams, Arapahoe, Broomfield, Denver, Douglas, Elbert and 1 more	28 hr
Jun 15, 4:21 PM MDT	Special Weather Statement	BOU	Weld	39 min
Jun 15, 4:34 PM MDT	Severe Thunderstorm Warning	BOU	Weld	15 min
Jun 15, 4:45 PM MDT	Special Weather Statement	BOU	Crowley	45 min
Jun 15, 4:57 PM MDT	Special Weather Statement	BOU	Lincoln	33 min
Jun 15, 5:07 PM MDT	Special Weather Statement	BOU	Weld	38 min
Jun 15, 5:20 PM MDT	Special Weather Statement	BOU	Adams	40 min
Jun 15, 5:23 PM MDT	Special Weather Statement	BOU	Adams	52 min
Jun 15, 5:27 PM MDT	Special Weather Statement	BOU	Lincoln	48 min
Jun 15, 5:32 PM MDT	Special Weather Statement	BOU	Lincoln	43 min

Nearby

Red Flag Warnings in Colorado, 2024 Every red flag warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.