Alert archive / Colorado / Red Flag Warnings in 2019

Red Flag Warning 6, NWS Grand Junction, CO

July 2, 2019Moffat County, Rio Blanco County, Colorado; Grand County, Utah

NWS Grand Junction, CO issued this red flag warning at Jul 2, 2019, 2:53 PM MDT for Moffat County, Rio Blanco County, Colorado; Grand County, Utah. It took effect at Jul 3, 2019, 12:00 PM MDT. It was in force for 8 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
Jul 2, 2019, 2:53 PM MDT (20:53 UTC)
In effect from
Jul 3, 2019, 12:00 PM MDT
Expired
Jul 3, 2019, 8:00 PM MDT
In force
8 hr
Issued by
NWS Grand Junction, CO

Counties Moffat County, CO, Rio Blanco County, CO, Grand County, UT

The radar

The Grand Junction radar (KGJX), 97 km from the middle of the area, began a volume at 20:54 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

Riverton, WY (KRIW), launched 12:00Z, 8.9 hours before the alert went out and 358 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-pSkew-T log-p diagram, Riverton, WY at 12:00Z on 2019-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 35 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Riverton, WY at 12:00Z on 2019-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
35 J/kg
Mixed-layer CIN
-248 J/kg
Mixed-layer LCL
2435 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
73 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Grand Junction, CO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 2:20 PM MDTRiver Flood AdvisoryGJTPitkin7 days
Jul 2, 4:23 PM MDTRiver Flood AdvisoryGJTEagle, Pitkin4 days
Jul 2, 3:09 PM MDTSpecial Weather StatementGJTUintah51 min

Nearby

Red Flag Warnings in Colorado, 2019Red Flag Warnings in Utah, 2019Every red flag warning in 2019

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.