Alert archive / California / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Reno, NV

June 28, 2021Alpine County, Mono County, California; Douglas County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Jun 28, 2021, 4:06 PM PDT for Alpine County, Mono County, California; Douglas County, Nevada. It was in force for 54 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: Jun 28, 2021, 4:06 PM PDT (23:06 UTC)
Expired: Jun 28, 2021, 5:00 PM PDT
In force: 54 min
Issued by: NWS Reno, NV
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Alpine County, CA, Mono County, CA, Douglas County, NV

The radar

The Reno radar (KRGX), 135 km from the middle of the area, began a volume at 23:08 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, 11.1 hours before the alert went out and 166 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3355 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 47 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

628 
WUUS55 KREV 282306
SVRREV
CAC003-051-NVC005-290000-
/O.NEW.KREV.SV.W.0005.210628T2306Z-210629T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Reno NV
406 PM PDT Mon Jun 28 2021

The National Weather Service in Reno has issued a

* Severe Thunderstorm Warning for...
  Northern Mono County in northern California...
  Alpine County in northern California...
  Douglas County in western Nevada...

* Until 500 PM PDT.

* At 406 PM PDT, a severe thunderstorm was located 8 miles east of
  Ebbetts Pass, or 8 miles west of Coleville, moving southeast at 10
  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...
  Topaz Lake, Coleville, Walker, Monitor Pass, Junction U.S 395 And
  CA 89, Junction U.S 395 And CA 108 (Sonora Junction), Bootleg
  Campground, Holbrook Junction and Topaz Lake Campground.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3855 11981 3877 11956 3856 11933 3829 11946
TIME...MOT...LOC 2306Z 301DEG 7KT 3855 11966 

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

BB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 28, 2:52 PM PDT	Special Weather Statement	REV	Alpine, Mono	3 hr

Nearby

Severe Thunderstorm Warnings in California, 2021 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.