Alert archive / Nevada / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 2, NWS Reno, NV

July 25, 1997Washoe County, Nevada

NWS Reno, NV issued this severe thunderstorm warning at Jul 25, 1997, 2:20 PM PDT for Washoe County, Nevada. It was in force for 115 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 25, 1997, 2:20 PM PDT (21:20 UTC)
Expired: Jul 25, 1997, 4:15 PM PDT
In force: 115 min
Issued by: NWS Reno, NV
Area: Whole counties

County Washoe County, NV

The radar

The Reno radar (KRGX), 103 km from the middle of the area, began a volume at 21:23 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, 9.3 hours before the alert went out and 174 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: 18 J/kg
Mixed-layer CIN: -142 J/kg
Mixed-layer LCL: 1384 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: -76 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 
TTAA00 KRNO 252124 RRA
SVRRNO
NVC031-252320-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RENO NV                                  
220 PM PDT FRI JUL 25 1997

THE NATIONAL WEATHER SERVICE IN RENO HAS ISSUED A SEVERE
THUNDERSTORM WARNING EFFECTIVE UNTIL 415 PM FOR PEOPLE IN THE
FOLLOWING LOCATIONS...

IN WESTERN NEVADA 
     NORTHERN WASHOE COUNTY 
         
AT 215 PM PDT...DOPPLER RADAR INDICATED A SEVERAL STRONG
THUNDERSTORMS ALONG STATE ROUTE 447 APPROXIMATELY 25 MILES
NORTHWEST OF GERLACH.  THESE STORMS WERE MOVING SLOWLY AND LIKELY
PRODUCING LARGE HAIL...STRONG WINDS AND HEAVY RAIN.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...DESTRUCTIVE HAIL...
HEAVY RAIN...AND DEADLY LIGHTNING.  FOR YOUR PROTECTION MOVE TO
AN INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. 
HEAVY RAINS FLOOD ROADS QUICKLY.  DO NOT DRIVE INTO AREAS WHERE
WATER COVERS THE ROAD.

COLLINS/HUSTON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 2:45 PM PDT	Flash Flood Warning	REV	Washoe	2 hr
Jul 25, 2:45 PM PDT	Severe Thunderstorm Warning	REV	Washoe	2 hr

Nearby

Severe Thunderstorm Warnings in Nevada, 1997 Every severe thunderstorm warning in 1997

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.