Alert archive / Utah / Flash Flood Warnings in 2024

Flash Flood Warning 7, NWS Grand Junction, CO

June 25, 2024San Juan County, Utah

NWS Grand Junction, CO issued this flash flood warning at Jun 25, 2024, 4:00 PM MDT for San Juan County, Utah. It was in force for 3 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 25, 2024, 4:00 PM MDT (22:00 UTC)
Expired
Jun 25, 2024, 7:00 PM MDT
In force
3 hr
Issued by
NWS Grand Junction, CO
Area
Storm-based polygon
Flood severity
None

County San Juan County, UT

The radar

The Grand Junction radar (KGJX), 212 km from the middle of the area, began a volume at 22:04 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

Flgstf/Belemont, AZ (KFGZ), launched 12:00Z, 10.0 hours before the alert went out and 321 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, Flgstf/Belemont, AZ at 12:00Z on 2024-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 391 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, Flgstf/Belemont, AZ at 12:00Z on 2024-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 44 square meters per square second.1939Sfc1 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
391 J/kg
Mixed-layer CIN
-108 J/kg
Mixed-layer LCL
1284 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
44 m²/s²
0-3 km storm-relative helicity
5 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
Jun 24, 7:51 PM MDTSevere Thunderstorm WarningGJTMontrose24 min
Jun 24, 7:57 PM MDTSpecial Weather StatementGJTDelta33 min
Jun 24, 8:34 PM MDTSpecial Weather StatementGJTGunnison41 min
Jun 25, 12:48 PM MDTSpecial Weather StatementGJTRoutt27 min
Jun 25, 12:53 PM MDTSpecial Weather StatementGJTRio Blanco37 min
Jun 25, 1:25 PM MDTAreal Flood AdvisoryGJTRio Blanco3 hr
Jun 25, 4:32 PM MDTSpecial Weather StatementGJTMoffat43 min
Jun 25, 5:05 PM MDTSevere Thunderstorm WarningGJTMoffat, Routt25 min
Jun 25, 5:19 PM MDTSpecial Weather StatementGJTRoutt41 min
Jun 25, 1:06 PM MDTSpecial Weather StatementGJTDaggett24 min
Jun 25, 1:35 PM MDTSpecial Weather StatementGJTDaggett25 min
Jun 25, 1:45 PM MDTSpecial Weather StatementGJTSan Juan30 min
Jun 25, 1:53 PM MDTFlash Flood WarningGJTSan Juan3 hr
Jun 25, 3:11 PM MDTSpecial Weather StatementGJTDaggett34 min

Nearby

Flash Flood Warnings in Utah, 2024Every flash flood 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.