Alert archive / Utah / Flash Flood Warnings in 2026

Flash Flood Warning 119, NWS Salt Lake City, UT

September 1, 2026Kane County, Utah

NWS Salt Lake City, UT issued this flash flood warning at Sep 1, 2026, 3:42 PM MDT for Kane County, Utah. It was in force for 7 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
Sep 1, 2026, 3:42 PM MDT (21:42 UTC)
Expired
Sep 1, 2026, 10:45 PM MDT
In force
7 hr
Issued by
NWS Salt Lake City, UT
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Kane County, UT

The radar

The Cedar City radar (KICX), 92 km from the middle of the area, began a volume at 21:42 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

Las Vegas, NV (KVEF), launched 12:00Z, 9.7 hours before the alert went out and 340 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, Las Vegas, NV at 12:00Z on 2026-09-01Temperature 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, Las Vegas, NV at 12:00Z on 2026-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3404 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
86 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
Aug 31, 6:04 PM MDTSpecial Weather StatementSLCMorgan, Weber26 min
Aug 31, 6:25 PM MDTFlash Flood Warning Considerable damage threatSLCWashington3 hr
Aug 31, 6:27 PM MDTFlash Flood WarningSLCGarfield5 hr
Aug 31, 7:44 PM MDTAreal Flood AdvisorySLCKane2 hr
Sep 1, 12:36 PM MDTFlash Flood Warning Considerable damage threatSLCWashington3 hr
Sep 1, 12:44 PM MDTFlash Flood Warning Considerable damage threatSLCKane, Washington3 hr
Sep 1, 12:49 PM MDTSpecial Weather StatementSLC41 min
Sep 1, 12:52 PM MDTSevere Thunderstorm WarningSLCKane, Washington38 min
Sep 1, 1:26 PM MDTSevere Thunderstorm WarningSLCKane34 min
Sep 1, 3:34 PM MDTSevere Thunderstorm WarningSLCBox Elder26 min
Sep 1, 4:09 PM MDTSevere Thunderstorm WarningSLCBox Elder36 min

Nearby

Flash Flood Warnings in Utah, 2026Every flash flood warning in 2026

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.