Alert archive / Arizona / Flash Flood Warnings in 2025

Flash Flood Warning 116, NWS Las Vegas, NV

October 11, 2025Mohave County, Arizona

NWS Las Vegas, NV issued this flash flood warning at Oct 11, 2025, 10:57 PM MST for Mohave County, Arizona. 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: Oct 11, 2025, 10:57 PM MST (05:57 UTC)
Expired: Oct 12, 2025, 2:00 AM MST
In force: 3 hr
Issued by: NWS Las Vegas, NV
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

County Mohave County, AZ

The radar

The Las Vegas radar (KESX), 102 km from the middle of the area, began a volume at 05:57 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 00:00Z, 6.0 hours before the alert went out and 185 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 80 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 836 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 69 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 Oct 11, 8:51 PM MST, 2 hours 6 minutes earlier.

Area forecast discussion, Oct 11, 8:51 PM MST, 2 hours 6 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 11, 10:03 PM MST	Areal Flood Advisory	VEF	Clark	3 hr
Oct 11, 10:14 PM MST	Areal Flood Advisory	VEF	Clark	3 hr
Oct 11, 10:27 PM MST	Severe Thunderstorm Warning	VEF	Clark	48 min
Oct 12, 12:49 PM MST	Wind Advisory	VEF	Clark, Esmeralda, Lincoln, Nye	56 hr
Oct 12, 12:06 AM MST	Winter Storm Watch	VEF	Inyo	24 hr
Oct 11, 11:22 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Oct 11, 11:57 PM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	3 hr
Oct 12, 12:55 AM MST	Flash Flood Warning Considerable damage threat	VEF	Mohave	2 hr

Nearby

Flash Flood Warnings in Arizona, 2025 Every flash flood warning in 2025

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.