Alert archive / Nevada / Severe Thunderstorm Warnings in 2007

Severe Thunderstorm Warning 39, NWS Reno, NV

August 31, 2007Pershing County, Washoe County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Aug 31, 2007, 3:54 PM PDT for Pershing County, Washoe County, Nevada. It was in force for 51 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
Aug 31, 2007, 3:54 PM PDT (22:54 UTC)
Expired
Aug 31, 2007, 4:45 PM PDT
In force
51 min
Issued by
NWS Reno, NV
Area
Counties, with a storm outline in the text

Counties Pershing County, NV, Washoe County, NV

The radar

The Reno radar (KRGX), 80 km from the middle of the area, began a volume at 22:55 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, 10.9 hours before the alert went out and 155 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 12:00Z on 2007-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 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 12:00Z on 2007-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
142 J/kg
Mixed-layer CIN
-192 J/kg
Mixed-layer LCL
1782 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
92 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.

000 
WUUS55 KREV 312256
SVRREV
NVC027-031-312345-
/O.NEW.KREV.SV.W.0039.070831T2254Z-070831T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV
354 PM PDT FRI AUG 31 2007

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL PERSHING COUNTY IN WEST CENTRAL NEVADA...
  CENTRAL WASHOE COUNTY IN WESTERN NEVADA...
  THIS INCLUDES THE CITIES OF...PYRAMID LAKE...GERLACH...

* UNTIL 445 PM PDT

* AT 351 PM PDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A 
LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN  
EXCESS OF 60 MPH AS WELL AS HEAVY RAIN.  THESE STORMS WERE LOCATED 
ALONG A LINE EXTENDING   FROM 29 MILES SOUTHWEST OF GERLACH TO 15 
MILES EAST OF PYRAMID LAKE...AND MOVING NORTHEAST AT 25 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
HIGHWAY 447 BY 410 PM PDT...  
GERLACH BY 435 PM PDT...

SEEK SHELTER IMMEDIATELY INSIDE A STURDY STRUCTURE AND STAY AWAY 
FROM WINDOWS. AREAS OF BLOWING DUST AND HEAVY RAIN WILL RAPIDLY 
REDUCE VISIBILITIES TO BELOW ONE MILE.

THIS STORM IS CAPABLE OF PRODUCING LOCALLY HEAVY RAINFALL. WATCH FOR
PONDING WATER ON AREA ROADWAYS. DRIVERS SHOULD SLOW DOWN IF
ENCOUNTERING HEAVY RAINS...AND REMEMBER TO TURN ON THEIR HEADLIGHTS.

LAT...LON 4083 11937 4032 11885 3993 11951 4040 12001
      4042 12000 4053 12000
TIME...MOT...LOC 2254Z 230DEG 25KT 4050 11983 4013 11927

$$

JAH

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 31, 2:36 PM PDTSevere Thunderstorm WarningREVWashoe24 min
Aug 31, 2:55 PM PDTSevere Thunderstorm WarningREVChurchill, Pershing, Washoe65 min
Aug 31, 3:33 PM PDTSevere Thunderstorm WarningREVWashoe42 min
Aug 31, 4:11 PM PDTSevere Thunderstorm WarningREVPershing, Washoe64 min

Nearby

Severe Thunderstorm Warnings in Nevada, 2007Every severe thunderstorm warning in 2007

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.