Alert archive / Nevada / Severe Thunderstorm Warnings in 1995

Severe Thunderstorm Warning 7, NWS Las Vegas, NV

August 22, 1995Clark County, Nevada

NWS Las Vegas, NV issued this severe thunderstorm warning at Aug 22, 1995, 4:55 PM PDT for Clark County, Nevada. It was in force for 65 min.

The area

The counties it named.

The facts

Issued
Aug 22, 1995, 4:55 PM PDT (23:55 UTC)
Expired
Aug 22, 1995, 6:00 PM PDT
In force
65 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, 11.9 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 1995-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 346 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 1995-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 square meters per square second.1939Sfc1 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
346 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
1551 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
14 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Aug 22, 2:36 PM PDT, 2 hours 19 minutes earlier.

Area forecast discussion, Aug 22, 2:36 PM PDT, 2 hours 19 minutes before
SOUTHERN NEVADA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
235 PM PDT TUE AUG 22 1995

SKY LUKG DESPERATELY QUIET ACRS SRN NV VLYS THIS AFTN. OUR NEMESIS...
LOW LVL DIVERGNC...APRNTLY BIG FCTR AGN (SEE LOW LVL RAFS DIV PRODS)
WITH INBLTY OF ATMOS TO GNRT SIG CNVCTN AT VLY LVLS.  NONETHELESS...
RAFS IS INDCTG TREND TWRD LTL LESS LOW LVL DIV AS AFTN GOES ON AND
STLT IS SHOWG SMALL CU FIELD DVLPG LWR CO VLY INTO W-CNTL AZ.  GIVEN
INSTBLTY AND MOISTNESS OF ATMOS...STILL A GOOD IDEA TO HANG ON TO LOW
POPS SRN NV THIS EVE.  BUT FFA MAY BE A BIT XTRM; FEEL BEST TO LIMIT
THREAT AREA TO HIER TRRN (WHR THERE HAS BEEN AND IS ACTVTY.)  TMRW A
LTL DIFF WITH POTENTIAL FOR SOME MID/UPPR LVL FORCING WITH APPRCH OF
BAJA SYS...THO APPRS DRY TONGUE SHOWING ON WV PUSHING UP LWR CO VLY
MAY BE MORE OVER US BY THEN.  LOW POPS STILL JUSTFD TMRW.  BUT TREND
CERTAINLY TWRDS LESS MENTION OF ACTVTY IN COMING DAYS AS TROF DIGS IN
TO PAC NW INCRSG SWLY FLOW ACROSS AREA. TEMPS WARM UP AS WELL.  MAC
LAS BU 077/101/077/103 2221
DRA BU 070/093/070/096 3221
IFP BU 081/108/081/110 2221
.VEF...SE RNO SFD

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 4:55 PM PDTFlash Flood WarningVEFClark65 min

Nearby

Severe Thunderstorm Warnings in Nevada, 1995Every severe thunderstorm warning in 1995

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.