Alert archive / Nevada / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 59, NWS Las Vegas, NV

September 6, 1996Clark County, Nevada; Mohave County, Arizona; San Bernardino County, California

NWS Las Vegas, NV issued this severe thunderstorm warning at Sep 6, 1996, 2:06 PM PDT for Clark County, Nevada; Mohave County, Arizona; San Bernardino County, California. It was in force for 69 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Sep 6, 1996, 2:06 PM PDT (21:06 UTC)
Expired
Sep 6, 1996, 3:15 PM PDT
In force
69 min
Issued by
NWS Las Vegas, NV
Area
Whole counties

Counties Mohave County, AZ, San Bernardino County, CA, Clark County, NV

The radar

The Las Vegas radar (KESX), 15 km from the middle of the area, began a volume at 20:54 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.

What was reported inside it

TimeReportWhereRemark
Sep 6, 3:10 PM PDTHail 1Kingman, AZ
Sep 6, 3:25 PM PDTHail 0.75Kingman Arpt, AZ

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 12:00Z, 9.1 hours before the alert went out and 147 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 1996-09-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 1996-09-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
-294 J/kg
Mixed-layer LCL
2603 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
96 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 Sep 6, 8:59 AM PDT, 5 hours 7 minutes earlier.

Area forecast discussion, Sep 6, 8:59 AM PDT, 5 hours 7 minutes before
MOJAVE DESERT/SOUTHERN GREAT BASIN AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAS VEGAS NV
858 AM PDT FRI SEP 6 1996

PRBLMS W/SUPER COMPUTER BACK E THANKS TO T.S FRAN...SO MDLS DLAD.
ALSO LOCAL PRBLM WITH NTRANS SO 12Z RUC UNAVBL.  WX WISE...88D
DETECTG A FEW SHWRS/TSTMS ALNG NV/AZ BRDR XNTND E INTO NW AZ AHD OF
S/WV OVR SRN GRT BASIN THIS MRNG.  LAST NGTS MDLS DEPICT SVRL WK
IMPULSES WL CONT TO ROTATE THRU TROF LTR THIS AFTN/TNGT AND SAT
WHICH AGN COULD ENHANCE CONVECTION OVR ERN HLF OF CWA WHERE LOW LVL
MSTR WL RMN PLENTIFUL.  FCST WORDED THAT WAY ATTM AND ONLY MINOR
CHGS MADE.  LAS 111.  PIERCE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 2:06 PM PDTFlash Flood WarningVEFClark69 min
Sep 6, 4:17 PM PDTFlash Flood WarningVEFClark58 min
Sep 6, 4:17 PM PDTSevere Thunderstorm WarningVEFClark58 min
Sep 6, 12:26 PM PDTSevere Thunderstorm WarningVEFMohave64 min
Sep 6, 12:59 PM PDTFlash Flood WarningVEFMohave61 min
Sep 6, 12:59 PM PDTSevere Thunderstorm WarningVEFMohave61 min
Sep 6, 3:18 PM PDTFlash Flood WarningVEFMohave57 min
Sep 6, 3:18 PM PDTSevere Thunderstorm WarningVEFMohave57 min
Sep 6, 2:06 PM PDTFlash Flood WarningVEFSan Bernardino69 min

Nearby

Severe Thunderstorm Warnings in Nevada, 1996Severe Thunderstorm Warnings in Arizona, 1996Severe Thunderstorm Warnings in California, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.