Alert archive / Nevada / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 7, NWS Reno, NV

July 1, 2021Lyon County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Jul 1, 2021, 7:58 PM PDT for Lyon County, Nevada. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 1, 2021, 7:58 PM PDT (02:58 UTC)
Expired: Jul 1, 2021, 8:45 PM PDT
In force: 47 min
Issued by: NWS Reno, NV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Lyon County, NV

The radar

The Reno radar (KRGX), 46 km from the middle of the area, began a volume at 03:00 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, 3.0 hours before the alert went out and 91 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: 95 J/kg
Mixed-layer CIN: -81 J/kg
Mixed-layer LCL: 3191 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 37 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

187 
WUUS55 KREV 020258
SVRREV
NVC019-020345-
/O.NEW.KREV.SV.W.0007.210702T0258Z-210702T0345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Reno NV
758 PM PDT Thu Jul 1 2021

The National Weather Service in Reno has issued a

* Severe Thunderstorm Warning for...
  North central Lyon County in west central Nevada...

* Until 845 PM PDT.

* At 758 PM PDT, a severe thunderstorm was located over Silver
  Springs, or 8 miles southwest of Lahontan Reservoir, moving south
  at 5 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, fencing and trees.

* Locations impacted include...
  Silver Springs, Fort Churchill Station and Lahontan Reservoir. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3945 11928 3945 11916 3929 11906 3927 11935
TIME...MOT...LOC 0258Z 001DEG 6KT 3940 11922 

HAIL...1.00IN
WIND...60MPH
 
$$

CS

1 follow-up statement

012 
WWUS55 KREV 020326
SVSREV

Severe Weather Statement
National Weather Service Reno NV
826 PM PDT Thu Jul 1 2021

NVC019-020345-
/O.CON.KREV.SV.W.0007.000000T0000Z-210702T0345Z/
Lyon NV-
826 PM PDT Thu Jul 1 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM PDT
FOR CENTRAL LYON COUNTY...

At 825 PM PDT, a severe thunderstorm was located 5 miles south of 
Silver Springs moving south at 5 to 10 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, fencing and trees from 
         these strong winds.

Locations impacted include...
Fort Churchill Station and Highway 95 south of Silver Springs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is occurring with this storm, and may lead to flash 
flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3940 11927 3939 11914 3929 11906 3927 11935
TIME...MOT...LOC 0325Z 001DEG 6KT 3935 11922 

HAIL...0.75IN
WIND...60MPH
 
$$

CS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 1, 5:17 PM PDT	Flash Flood Warning	REV	Douglas	3 hr
Jul 1, 6:02 PM PDT	Special Weather Statement	REV	Douglas	28 min
Jul 1, 6:13 PM PDT	Special Weather Statement	REV	Churchill	92 min
Jul 1, 7:24 PM PDT	Areal Flood Advisory	REV	Lyon	111 min
Jul 1, 7:48 PM PDT	Special Weather Statement	REV	Storey	57 min
Jul 2, 11:13 AM PDT	Fire Weather Watch	REV	Douglas, Lyon, Mineral, Storey, Washoe	14 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2021 Every severe thunderstorm warning in 2021

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.