Alert archive / Nevada / Flash Flood Warnings in 2023

Flash Flood Warning 13, NWS Reno, NV

June 11, 2023Lyon County, Storey County, Nevada

NWS Reno, NV issued this flash flood warning at Jun 11, 2023, 5:29 PM PDT for Lyon County, Storey County, Nevada. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 11, 2023, 5:29 PM PDT (00:29 UTC)
Expired
Jun 11, 2023, 7:30 PM PDT
In force
2 hr
Issued by
NWS Reno, NV
Area
Storm-based polygon
Flood severity
None

Counties Lyon County, NV, Storey County, NV

The radar

The Reno radar (KRGX), 52 km from the middle of the area, began a volume at 00:32 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 00:00Z, 0.5 hours before the alert went out and 124 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, Reno, NV at 00:00Z on 2023-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 505 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Reno, NV at 00:00Z on 2023-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
505 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1832 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
6 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

127 
WGUS55 KREV 120029
FFWREV
NVC019-029-120230-
/O.NEW.KREV.FF.W.0013.230612T0029Z-230612T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Reno NV
529 PM PDT Sun Jun 11 2023

The National Weather Service in Reno has issued a

* Flash Flood Warning for...
  Northern Lyon County in west central Nevada...
  Storey County in western Nevada...

* Until 730 PM PDT.

* At 529 PM PDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Flash flooding is ongoing or 
  expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...Six 
  Mile Canyon and Gold Hill.

Small hail may be mixed with heavy rainfall.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

Be aware of your surroundings and do not drive on flooded roads.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

&&

LAT...LON 3927 11965 3929 11966 3930 11962 3931 11960
      3933 11959 3933 11954 3931 11951 3928 11957
      3927 11962

FLASH FLOOD...RADAR INDICATED

$$

AY
1 follow-up statement
795 
WGUS75 KREV 120229
FFSREV

Flash Flood Statement
National Weather Service Reno NV
729 PM PDT Sun Jun 11 2023

NVC019-029-120239-
/O.EXP.KREV.FF.W.0013.000000T0000Z-230612T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Lyon NV-Storey NV-
729 PM PDT Sun Jun 11 2023

...FLASH FLOOD WARNING WILL EXPIRE AT 730 PM PDT THIS EVENING FOR 
NORTHERN LYON AND STOREY COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat. Please continue to heed remaining road closures.

A Flood Watch remains in effect until 900 PM PDT Monday for portions 
of California and western Nevada.

LAT...LON 3927 11965 3929 11966 3930 11962 3931 11960
      3933 11959 3933 11954 3931 11951 3928 11957
      3927 11962

$$

AY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 6:02 PM PDTSpecial Weather StatementREV58 min
Jun 11, 6:06 PM PDTSpecial Weather StatementREVStorey39 min
Jun 12, 1:25 PM PDTRiver Flood AdvisoryREVMineral32 days

Nearby

Flash Flood Warnings in Nevada, 2023Every flash flood warning in 2023

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.