Alert archive / Nevada / Flood Watches in 2025

Flood Watch 2, NWS Reno, NV

August 23, 20255 counties in Nevada; Mono County, California

NWS Reno, NV issued this flood watch at Aug 23, 2025, 8:42 AM PDT for 5 counties in Nevada; Mono County, California. It took effect at Aug 23, 2025, 12:00 PM PDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Aug 23, 2025, 8:42 AM PDT (15:42 UTC)
In effect from: Aug 23, 2025, 12:00 PM PDT
Expired: Aug 23, 2025, 9:11 PM PDT
In force: 9 hr
Issued by: NWS Reno, NV
Flood severity: None

Counties Mono County, CA, Douglas County, NV, Lyon County, NV, Mineral County, NV, Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 77 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

Reno, NV (KREV), launched 12:00Z, 3.7 hours before the alert went out and 103 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: 32 J/kg
Mixed-layer CIN: -266 J/kg
Mixed-layer LCL: 2760 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 98 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 flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Reno, NV wrote its last area forecast discussion before this flood watch went out at Aug 23, 2:05 AM PDT, 6 hours 37 minutes earlier.

Area forecast discussion, Aug 23, 2:05 AM PDT, 6 hours 37 minutes before

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In the hours before

Local storm report, Aug 23, 6:48 AM PDT, 1 hour 54 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 23, 8:50 AM PDT	Heat Advisory	REV	Churchill, Lyon, Pershing, Washoe	24 hr
Aug 23, 12:56 PM PDT	Special Weather Statement	REV		34 min
Aug 23, 1:27 PM PDT	Areal Flood Advisory	REV	Douglas	3 hr
Aug 23, 1:41 PM PDT	Special Weather Statement	REV		49 min
Aug 23, 1:46 PM PDT	Severe Thunderstorm Warning	REV	Douglas, Washoe	29 min
Aug 23, 1:53 PM PDT	Areal Flood Advisory	REV	Douglas	112 min
Aug 23, 2:23 PM PDT	Severe Thunderstorm Warning	REV	Washoe	37 min
Aug 23, 2:30 PM PDT	Flash Flood Warning	REV	Washoe	2 hr
Aug 23, 2:42 PM PDT	Severe Thunderstorm Warning	REV	Washoe	48 min
Aug 23, 2:43 PM PDT	Areal Flood Advisory	REV	Washoe	2 hr
Aug 23, 3:05 PM PDT	Severe Thunderstorm Warning	REV	Washoe	27 min
Aug 23, 4:36 PM PDT	Dust Storm Advisory	REV	Churchill, Pershing	54 min
Aug 22, 5:14 PM PDT	Special Weather Statement	REV	Mono	46 min
Aug 22, 5:49 PM PDT	Areal Flood Advisory	REV	Mono	116 min
Aug 23, 11:35 AM PDT	Special Weather Statement	REV	Mono	25 min
Aug 23, 4:08 PM PDT	Areal Flood Advisory	REV	Lassen, Plumas	3 hr

Nearby

Flood Watches in Nevada, 2025 Flood Watches in California, 2025 Every flood watch 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.