Alert archive / Nevada / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 2, NWS Reno, NV

April 22, 2012Churchill County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Apr 22, 2012, 5:59 PM PDT for Churchill County, Nevada. It was in force for 46 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: Apr 22, 2012, 5:59 PM PDT (00:59 UTC)
Expired: Apr 22, 2012, 6:45 PM PDT
In force: 46 min
Issued by: NWS Reno, NV
Area: Storm-based polygon

County Churchill County, NV

The radar

The Reno radar (KRGX), 59 km from the middle of the area, began a volume at 01:01 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, 1.0 hours before the alert went out and 53 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: 3936 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

919 
WUUS55 KREV 230059
SVRREV
NVC001-230145-
/O.NEW.KREV.SV.W.0002.120423T0059Z-120423T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
559 PM PDT SUN APR 22 2012

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL CHURCHILL COUNTY IN WEST CENTRAL NEVADA...
  THIS INCLUDES THE CITY OF FALLON...

* UNTIL 645 PM PDT

* AT 552 PM PDT...FALLON NAVAL AIR STATION REPORTED A SEVERE  
  THUNDERSTORM PRODUCING DAMAGING WINDS NEAR 60 MPH.  THIS STORM WAS
  LOCATED NEAR FALLON...AND MOVING NORTH AT 10 MPH.

* LOCATIONS AFFECTED INCLUDE...FALLON.

PREPARE NOW FOR HIGH WINDS...HAIL...HEAVY RAIN AND DEADLY LIGHTNING.
DURING A SEVERE THUNDERSTORM...SEEK SHELTER INSIDE A STURDY STRUCTURE
AND STAY AWAY FROM WINDOWS.

THIS STORM HAS DEVELOPED VERY QUICKLY...AND WILL PRODUCE A BURST OF
HIGH WINDS...HAIL...HEAVY RAIN...AND FREQUENT CLOUD TO GROUND
LIGHTNING. AREAS OF BLOWING DUST MAY RAPIDLY REDUCE VISIBILITIES TO
BELOW ONE MILE. SEEK SAFE SHELTER...AND STAY AWAY FROM WINDOWS AND
GLASS DOORS.

LAT...LON 3971 11892 3968 11861 3936 11870 3938 11893
TIME...MOT...LOC 0058Z 187DEG 11KT 3946 11880

$$

JHW

2 follow-up statements

655 
WWUS55 KREV 230117
SVSREV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
617 PM PDT SUN APR 22 2012

NVC001-230145-
/O.CON.KREV.SV.W.0002.000000T0000Z-120423T0145Z/
CHURCHILL NV-
617 PM PDT SUN APR 22 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM PDT
FOR WEST CENTRAL CHURCHILL COUNTY...

AT 609 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR FALLON...MOVING NORTH
AT 15 MPH.

* LOCATIONS AFFECTED INCLUDE...FALLON...FALLON STATION...FALLON
  MUNICIPAL AIRPORT...JUNCTION US 50 AND NV 116 (STUART RD) AND
  JUNCTION US 50 AND NV 117 (SHECKLER CUTOFF).

THIS STORM HAS A HISTORY OF PRODUCING WIND GUSTS TO 60 MPH. AREAS OF 
BLOWING DUST MAY RAPIDLY REDUCE VISIBILITIES TO BELOW ONE MILE. SEEK 
SAFE SHELTER...AND STAY AWAY FROM WINDOWS AND GLASS DOORS.

LAT...LON 3971 11892 3968 11861 3936 11870 3938 11893
TIME...MOT...LOC 0116Z 187DEG 11KT 3951 11879

$$

JHW

716 
WWUS55 KREV 230137
SVSREV

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RENO NV
637 PM PDT SUN APR 22 2012

NVC001-230147-
/O.EXP.KREV.SV.W.0002.000000T0000Z-120423T0145Z/
CHURCHILL NV-
637 PM PDT SUN APR 22 2012

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL CHURCHILL COUNTY
WILL EXPIRE AT 645 PM PDT...

THE STORMS THAT EARLIER PROMPTED THE SEVERE THUNDERSTORM WARNING HAVE
WEAKENED...THEREFORE THE WARNING WILL BE ALLOWED TO EXPIRE.
HOWEVER...STRONG THUNDERSTORMS WILL REMAIN IN THE AREA THROUGH 715 
PM...CAPABLE OF PRODUCING GUSTY WINDS TO 45 MPH...DEADLY 
LIGHTNING...AND BRIEF HEAVY RAINS.

LAT...LON 3971 11892 3968 11861 3936 11870 3938 11893
TIME...MOT...LOC 0137Z 187DEG 11KT 3957 11878

$$

JHW

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 22, 5:22 PM PDT	Severe Thunderstorm Warning	REV	Churchill	38 min
Apr 22, 6:52 PM PDT	Special Weather Statement	REV		53 min
Apr 22, 8:52 PM PDT	Special Weather Statement	REV	Storey	38 min
Apr 22, 8:57 PM PDT	Special Weather Statement	REV	Storey	1 min
Apr 22, 8:57 PM PDT	Severe Thunderstorm Warning	REV	Lyon, Storey, Washoe	48 min
Apr 23, 1:54 PM PDT	Special Weather Statement	REV	Storey	21 min
Apr 23, 3:08 PM PDT	Special Weather Statement	REV		32 min
Apr 23, 4:16 PM PDT	Special Weather Statement	REV		44 min

Nearby

Severe Thunderstorm Warnings in Nevada, 2012 Every severe thunderstorm warning in 2012

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.