Alert archive / Nevada / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 7, NWS Las Vegas, NV

July 12, 1996Clark County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Jul 12, 1996, 3:51 PM PDT for Clark 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 counties it named.

The facts

Issued
Jul 12, 1996, 3:51 PM PDT (22:51 UTC)
Expired
Jul 12, 1996, 4:45 PM PDT
In force
54 min
Issued by
NWS Las Vegas, NV
Area
Whole counties

County Clark County, NV

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 12:00Z, 10.9 hours before the alert went out and 99 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, Mercury/Desert R, NV at 12:00Z on 1996-07-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Mercury/Desert R, NV at 12:00Z on 1996-07-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
31 J/kg
Mixed-layer CIN
-321 J/kg
Mixed-layer LCL
2473 m above ground
0-6 km bulk shear
7 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
17 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 KLAS 122252
SVRLAS
NVC003-122345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE LAS VEGAS NV
351 PM PDT FRI JUL 12 1996
 
THE NATIONAL WEATHER SERVICE IN LAS VEGAS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  445 PM PDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS......
 
IN SOUTH NEVADA
 
   ...CENTRAL CLARK COUNTY
 
AT 345 PM...LAS VEGAS RADAR DETECTED A SEVERE THUNDERSTORM ABOUT
5 MILES NORTHEAST OF NELLIS AIR FORCE BASE MOVING TO THE EAST
SOUTHEAST ABOUT 10 MPH.
 
 
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
KOSIER

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Las Vegas, NV wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 12, 1:59 PM PDT, 1 hour 52 minutes earlier.

Area forecast discussion, Jul 12, 1:59 PM PDT, 1 hour 52 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
2 PM PDT FRI JUL 12 1996

T-STORM ACTIVITY A LITTLE SLOWER TO DEVELOP TDA THAN PAST FEW DAYS.
ALSO MUCH OF T-STORMS OROGRAPHICALLY DRIVEN WITH FEW MAKING INTO
VALLEYS THUS FAR.  PER COOR WITH RNO/EKO WILL KEEP FFA CONFINED TO
ZONE 8 FOR THIS AFTERNOON AND EVENING.  WILL ALSO LEAVE T-STORM GOING
INTO THE NIGHT AS THEY HAVE BEEN THE PAST FEW NIGHTS.  ALL MDLS
MAINTAIN RDG AXIS IN SAME GENERAL AREA NEXT FEW DAYS AND WITH REMAINS
OF OLD HURRICANE BORIS CIRCULATION STILL SEE ACTIVITY CONTINUING
THROUGH SUNDAY.  NEW AVN CONSISTENT WITH LAST NIGHTS MRF RUN DIGGING
TROUGH DOWN FROM PAC NW EARLY NEXT WEEK:.  EUROPEAN EVEN COMING AROUND
TO CLOSER TO MRF SO WILL CONTINUE WITH DRY FCST FOR EXTENDED.
LAS 2121.  KOSIER

In the hours before

Special weather statement, Jul 12, 12:29 PM PDT, 3 hours 22 minutes before
NVZ009-122230-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
1227 PM PDT FRI JUL 12 1996

...THUNDERSTORMS BUILDING OVER MOUNT CHARLESTON...

THE FIRE DEPARTMENT AT KYLE CANYON IN MOUNT CHARLESTON INDICATED
A LIGHT SHOWER WITH PEA SIZE HAIL AROUND 11:00 AM.  LAS VEGAS DOPPLER
RADAR INDICATED A HEAVY THUNDERSTORM OVER THE AREA MOVING VERY SLOWLY
TO THE NORTH.

IF YOU ARE GOING TO THE SPRING MOUNTAIN AREA THIS AFTERNOON...
ESPECIALLY MOUNT CHARLESTON BE PREPARED FOR LOCALLY HEAVY RAINS...
HAIL AND STRONG GUSTY WINDS.

OTHER THUNDERSTORMS ARE FORECAST TO DEVELOP ACROSS THE LOWER
ELEVATIONS LATER THIS AFTERNOON AND EVENING.

STAY TUNED TO THIS STATION FOR FURTHER ST$ATEMENTS AND FORECASTS.
CHS/1925Z
Special weather statement, Jul 12, 2:09 PM PDT, 1 hour 42 minutes before
NVZ009-AZZ001-002-003-122315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
207 PM PDT (207 PM MST) FRI JUL 12 1996

...WIDELY SCATTERED THUNDERSTORMS DEVELOPING OVER CLARK COUNTY IN
SOUTHERN NEVADA AND CENTRAL MOHAVE COUNTY IN ARIZONA...

LAS VEGAS DOPPLER RADAR INDICATED WIDELY SCATTERED THUNDERSTORMS FROM
THE VICINTY OF SEARCHLIGHT NORTHWEST TO MOUNT POTOSI AND THE MOUNT
CHARLESTON AREA.  OTHER THUNDERSTORMS WERE NOTED IN MOHAVE COUNTY ALONG
HIGHWAY 93 FROM DOLAN SPRINGS TO JUST NORTH OF KINGMAN.

LITTLE MOVEMENT WAS NOTED DURING THE PAST 30 MINUETS.

SOME OF THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING HEAVY RAIN...
HAIL...STRONG GUSTY WINDS AND DEADLY LIGHTNING.

IF YOU ARE OUT AND ABOUT THIS AFTERNOON KEEP A WEATHER EYE TO THE SKY
AND BE PREPARED TO MOVE TO A PLACE OF SAFETY SHOULD THUNDERSTORMS
MOVE INTO YOUR AREA.

STAY TUNED TO THIS STATION FOR FURTHER STATEMENTS AND FORECASTS.
CHS/2107Z

f
Local storm report, Jul 12, 2:32 PM PDT, 1 hour 19 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE LAS VEGAS NV
232 PM PDT FRI JUL 12 1996

1245 PM    LEE CANYON                NV   0.75 INCH HAIL.
07/10/96   CLARK

424 PM     BULLHEAD CITY             AZ   71 MPH TSTM GUST.
07/10/96   MOHAVE

430 PM     HENDERSON                 NV   TSTM WIND DAMAGE.
07/10/96   CLARK                          MICROBURST THUNDERSTORM
                                          WINDS ESTIMATED BETWEEN
                                          60 MPH AND 80 MPH HIT
                                          BLACK MOUNTAIN GOLF COURSE
                                          AND IMMEDIATE VICINITY.
                                          MANY MATURE TREES KNOCKED
                                          DOWN.  SEVERAL POWER POLES
                                          DOWN.  AT LEAST TWO HOMES
                                          LOST SIGNIFICANT PORTIONS
                                          OF ROOFS AND NUMEROUS
                                          HOMES LOST SHINGLES OR
                                          ROOF TILES.  THREE NEW
                                          HOMES BEING FRAMED KNOCKED
                                          DOWN AND SESVERAL FENCES
                                          AND SIGNS ALSO DAMAGED.

807 PM     NELLIS AFB                NV   62 MPH TSTM WIND GUST.
07/10/96   CLARK                          IN NORTH LAS VEGAS.

500 PM     MT CHARLESTON             NV   LIGHTNING STRIKE.
07/11/96   CLARK                          ***1 INJ***
                                          MINOR INJURIES TO ONE
                                          WOMAN AT A GIRL SCOUT CAMP
                                          WHILE SHOWERING IN AN
                                          OUTDOOR SHOWER.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 11, 10:53 PM PDTSevere Thunderstorm WarningVEFClark67 min

Nearby

Severe Thunderstorm Warnings in Nevada, 1996Every severe thunderstorm warning in 1996

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.