Alert archive / Utah / Areal Flood Advisories in 2021

Areal Flood Advisory 3, NWS Salt Lake City, UT

June 24, 2021Salt Lake County, Tooele County, Utah County, Utah

NWS Salt Lake City, UT issued this areal flood advisory at Jun 24, 2021, 2:36 PM MDT for Salt Lake County, Tooele County, Utah County, Utah. It was in force for 69 min.

The area

The counties it named.

The facts

Issued
Jun 24, 2021, 2:36 PM MDT (20:36 UTC)
Expired
Jun 24, 2021, 3:45 PM MDT
In force
69 min
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon

Counties Salt Lake County, UT, Tooele County, UT, Utah County, UT

The radar

The Salt Lake City radar (KMTX), 96 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

Elko, NV (KLKN), launched 12:00Z, 8.6 hours before the alert went out and 173 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, Elko, NV at 12:00Z on 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Elko, NV at 12:00Z on 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -5 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2422 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-5 m²/s²
0-3 km storm-relative helicity
-35 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Salt Lake City, UT issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 24, 12:16 AM MDTRed Flag WarningSLCBeaver, Box Elder, Davis, Iron, Juab, Millard and 5 more21 hr
Jun 24, 11:57 AM MDTSpecial Weather StatementSLCJuab48 min
Jun 24, 12:12 PM MDTSpecial Weather StatementSLCTooele48 min
Jun 24, 12:38 PM MDTSpecial Weather StatementSLC37 min
Jun 24, 1:22 PM MDTSevere Thunderstorm WarningSLCTooele, Utah23 min
Jun 24, 1:35 PM MDTSpecial Weather StatementSLCSalt Lake25 min
Jun 24, 2:27 PM MDTSpecial Weather StatementSLCUtah48 min

Nearby

Areal Flood Advisories in Utah, 2021Every areal flood advisory in 2021

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.