Alert archive / California / Flash Flood Warnings in 1990

Flash Flood Warning 12, NWS Las Vegas, NV

July 16, 1990Inyo County, California

NWS Las Vegas, NV issued this flash flood warning at Jul 16, 1990, 4:48 AM PDT for Inyo County, California. It was in force for 57 min.

The area

The counties it named.

The facts

Issued
Jul 16, 1990, 4:48 AM PDT (11:48 UTC)
Expired
Jul 16, 1990, 5:45 AM PDT
In force
57 min
Issued by
NWS Las Vegas, NV
Area
Whole counties

County Inyo County, CA

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Mercury/Desert R, NV (KDRA), launched 00:00Z, 11.8 hours before the alert went out and 127 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 00:00Z on 1990-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 106 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 00:00Z on 1990-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
106 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
2308 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
-22 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 flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Jul 16, 3:05 AM PDT, 1 hour 43 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS, NV
305 AM PDT MON JUL 16 1990

TIME PDT     PLACE                 EVENT
0300 PM      LAS VEGAS             RAIN AMOUNTS FROM ALERT.
                                   WEST LAS VEGAS GAGES
                                       4234.... 1.34
                                       4304.... 1.65
                                       4334.... 1.38
                                       4224.... 0.83
   .                                    4614.... 0.75

JWS/1004Z
Special weather statement, Jul 16, 3:19 AM PDT, 1 hour 29 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS, NV
315 AM PDT MON JUL 16 1990
NVZ009-161200-

FLOODING CONTINUES IN PARTS OF LAS VEGAS.  THE HARDEST HIT AREA HAS
BEEN ON THE WEST SIDE OF LAS VEGAS.  STREET FLOODING HAS BEEN REPORTED
TO BE BAD IN MOST OF WEST LAS VEGAS.  RAIN AMOUNTS ON THE WEST SIDE
WERE FROM 0.83 IN THE ANGLE PARK AREA TO 1.65 IN THE BLUE DIAMOND.

TWO FEET OF WATER REPORTED GOING DOWN SAHARA AROUND MIDNIGHT.  AREAS
REPORTED STILL FLOODED..SAHARA AT THE LAKES..RAINBOW..JONES..SPRING
MOUNTAIN.  THE FLAMINGO WASH HAS OVER 6 FEET OF WATER IN IT.

MOTORISTS ARE REMINDED TO STAY CLEAR OF THE FLOODED AREAS.

LISTEN TO NOAA WEATHER RADIO...COMMERCIAL RADIO AND TELEVMISION FOR
ADDITIONAL STATEMENTS AND FORECASTS CONCERNING THIS SITUATION.
JWS/1019Z

Nearby

Flash Flood Warnings in California, 1990Every flash flood warning in 1990

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.