Alert archive / California / Flash Flood Warnings in 2022

Flash Flood Warning 109, NWS Las Vegas, NV

August 5, 2022Inyo County, California

NWS Las Vegas, NV issued this flash flood warning at Aug 5, 2022, 8:46 AM PDT for Inyo County, California. It was in force for 4 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
Aug 5, 2022, 8:46 AM PDT (15:46 UTC)
Expired
Aug 5, 2022, 12:45 PM PDT
In force
4 hr
Issued by
NWS Las Vegas, NV
Area
Storm-based polygon
Damage threat
Considerable
Flood severity
None

County Inyo County, CA

The radar

The Edwards AFB radar (KEYX), 158 km from the middle of the area, began a volume at 15:44 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, 3.8 hours before the alert went out and 168 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 2022-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 692 joules per kilogram.LCLLFCEL10008507005003002001001 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 2022-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
692 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
1113 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
21 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this flash flood warning went out at Aug 5, 1:40 AM PDT, 7 hours 6 minutes earlier.

Area forecast discussion, Aug 5, 1:40 AM PDT, 7 hours 6 minutes before
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The office that day

Everything else NWS Las Vegas, NV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 4, 5:28 PM PDTSevere Thunderstorm WarningVEFLincoln47 min
Aug 4, 5:53 PM PDTFlash Flood Warning Considerable damage threatVEFLincoln3 hr
Aug 5, 9:20 AM PDTFlash Flood Warning Considerable damage threatVEFEsmeralda, Nye3 hr
Aug 5, 12:47 PM PDTAreal Flood AdvisoryVEFEsmeralda, Nye3 hr
Aug 5, 6:52 AM PDTAreal Flood AdvisoryVEFInyo2 hr
Aug 5, 4:05 PM PDTFlash Flood Warning Considerable damage threatVEFSan Bernardino3 hr
Aug 4, 5:49 PM PDTFlash Flood Warning Considerable damage threatVEFMohave2 hr

Nearby

Flash Flood Warnings in California, 2022Every flash flood warning in 2022

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.