Alert archive / Nevada / Severe Thunderstorm Warnings in 2014

Severe Thunderstorm Warning 21, NWS Reno, NV

July 21, 2014Storey County, Washoe County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Jul 21, 2014, 5:50 PM PDT for Storey County, Washoe County, Nevada. It was in force for 25 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jul 21, 2014, 5:50 PM PDT (00:50 UTC)
Expired
Jul 21, 2014, 6:15 PM PDT
In force
25 min
Issued by
NWS Reno, NV
Area
Storm-based polygon

Counties Storey County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 26 km from the middle of the area, began a volume at 00:49 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.

What was reported inside it

TimeReportWhereRemark
Jul 21, 6:01 PM PDTFUNNEL CLOUDLockwood, NVPUBLIC REPORTED FUNNEL CLOUD AND ROTATING WALL CLOUD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Reno, NV (KREV), launched 00:00Z, 0.8 hours before the alert went out and 122 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 2014-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 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 2014-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.193958Sfc1 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
449 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1746 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

341 
WUUS55 KREV 220050
SVRREV
NVC029-031-220115-
/O.NEW.KREV.SV.W.0021.140722T0050Z-140722T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
550 PM PDT MON JUL 21 2014

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WESTERN STOREY COUNTY IN WESTERN NEVADA...
  SOUTH CENTRAL WASHOE COUNTY IN WESTERN NEVADA...

* UNTIL 615 PM PDT

* AT 545 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 7 MILES
  SOUTHEAST OF LOCKWOOD...OR 8 MILES NORTH OF VIRGINIA CITY...AND
  MOVING NORTH AT 20 MPH.

* LOCATIONS AFFECTED INCLUDE...LOCKWOOD...PATRICK...SPANISH 
  SPRINGS...WINGFIELD SPRINGS AND TAHOE-RENO INDUSTRIAL CENTER.

THIS STORM WILL AFFECT INTERSTATE 80 IN NEVADA BETWEEN MILE MARKERS
19 AND 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

LAT...LON 3967 11975 3969 11945 3937 11952 3936 11964
TIME...MOT...LOC 0050Z 172DEG 18KT 3944 11959

$$

HOON
1 follow-up statement
233 
WWUS55 KREV 220101
SVSREV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
601 PM PDT MON JUL 21 2014

NVC029-031-220115-
/O.CON.KREV.SV.W.0021.000000T0000Z-140722T0115Z/
STOREY NV-WASHOE NV-
601 PM PDT MON JUL 21 2014

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM PDT
FOR SOUTH CENTRAL WASHOE AND WESTERN STOREY COUNTIES...

AT 554 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR MUSTANG...OR 11 MILES NORTH OF VIRGINIA CITY...MOVING
NORTH AT 20 MPH.

* LOCATIONS AFFECTED INCLUDE...LOCKWOOD...MUSTANG...PATRICK...SPANISH
  SPRINGS...WINGFIELD SPRINGS AND TAHOE-RENO INDUSTRIAL CENTER.

* THIS STORM WILL AFFECT INTERSTATE 80 IN NEVADA BETWEEN MILE MARKERS
  19 AND 32.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM. 
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A 
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A 
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.

&&

LAT...LON 3967 11975 3969 11945 3937 11952 3936 11964
TIME...MOT...LOC 0101Z 172DEG 18KT 3949 11960

$$

HOON

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 5:06 PM PDTSpecial Weather StatementREVStorey39 min
Jul 21, 5:27 PM PDTSpecial Weather StatementREVStorey48 min
Jul 21, 5:36 PM PDTSpecial Weather StatementREVMineral39 min
Jul 21, 5:59 PM PDTSpecial Weather StatementREVLyon46 min
Jul 21, 6:13 PM PDTSevere Thunderstorm WarningREVStorey, Washoe32 min
Jul 21, 6:23 PM PDTTornado WarningREVStorey, Washoe37 min
Jul 21, 6:53 PM PDTSevere Thunderstorm WarningREVWashoe37 min
Jul 21, 7:29 PM PDTSpecial Weather StatementREVWashoe61 min
Jul 21, 10:51 PM PDTSpecial Weather StatementREVPershing54 min
Jul 22, 3:00 PM PDTSevere Thunderstorm WarningREVLyon, Storey60 min
Jul 22, 3:58 PM PDTSpecial Weather StatementREV62 min
Jul 22, 4:20 PM PDTAreal Flood AdvisoryREVWashoe3 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 2014Every severe thunderstorm warning in 2014

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.