Damaging Wind in California, July 14, 2021

Area Forecast Discussion
National Weather Service Las Vegas NV
101 PM PDT Wed Jul 14 2021

.SYNOPSIS...Showers and thunderstorms are expected for
only the extreme northeastern and eastern portion of the area this
evening. Then a brief period of drier conditions prevail Friday into
Saturday before storm chances increase Sunday through the middle of
next week.
&&

.DISCUSSION...through next Wednesday.

Starting to sound like a broken record, but overall synoptic pattern
has not changed much so we are expecting our third active evening in
a row, if only slightly further eastward.

Storms that develop across Lincoln County and southwest Utah this
afternoon will once again propagate south-southeastward through
northeast Clark County and northwest Arizona this evening before
dissipating in the early hours of Thursday morning. Any of the
stronger storms will be capable of producing wind gusts of 50+ mph
in Lincoln, eastern Clark and Mohave Counties. Some of the near term
guidance, specifically the HRRR has been indicating the potential
for heavy rainfall increasing across northern Mohave County this
evening. This prompted the issuance of the Flash Flood Watch until
midnight MST.

Potential still exists on Thursday evening for storms to move out of
Utah and clip northern Mohave County. However, intensity of storms
does not look to be as significant as the previous days.

Still looking at Friday as the quietest day but can rule out an
isolated shower or thunderstorm over parts of northern Lincoln
County and northwest Arizona. NBM PoPs now showing isolated storms
possible as early as Saturday over the higher terrain of southern
Nevada and eastern San Bernardino County as monsoon moisture starts
to surge back northward. Upward swing in storms will then continue
to spread north and west Sunday through the middle of next week as
PW values surge northward into the Great Basin.

Temperatures will be running at or slightly above normal during the
period.
&&

.AVIATION...For McCarran...Winds at the terminal will favor a
northeast to east direction through the afternoon, with occasional
gusts over 10 knots possible. Isolated thunderstorms may develop
over the local mountains, but are not expected to affect the
terminal. The bigger concern comes late this evening around 06Z,
when thunderstorms passing by to the east could send gusty northeast
winds to the terminal for a few hours. Quieter weather is likely
Thursday.

For the rest of southern Nevada, northwest Arizona and southeast
California...Isolated thunderstorms are expected to develop over the
higher terrain of Esmeralda, north central Nye, and far northeast
San Bernardino counties this afternoon. The greater concern is a
complex of thunderstorms forecast to develop over Lincoln county
late this afternoon and track south into extreme northeast Clark and
northern Mohave counties this evening and tonight. As in previous
evenings, the main threats will be strong and erratic winds, locally
heavy rain, and low ceilings with terrain obscuration. Less
thunderstorm coverage is expected Thursday.
&&

.SPOTTER INFORMATION STATEMENT...Spotters are encouraged to report
any significant weather or impacts according to standard operating
procedures.
&&

DISCUSSION...Pierce
AVIATION...Morgan

For more forecast information...see us on our webpage:
https://weather.gov/lasvegas or follow us on Facebook and Twitter

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LAS VEGAS NV
442 PM PDT WED JUL 14 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0841 PM     TSTM WND DMG     2 NE BUNKERVILLE        36.79N 114.10W
07/13/2021                   CLARK              NV   PUBLIC

            TREE BLOWN OVER INTO ROADWAY BY WINDS
            ASSOCIATED WITH A THUNDERSTORM. GENERAL
            LOCATION ESTIMATED.

1135 AM     FLASH FLOOD      12 S VALENTINE          35.21N 113.63W
07/13/2021                   MOHAVE             AZ   COUNTY OFFICIAL

            MOHAVE COUNTY PUBLIC WORKS REPORTED S.
            HACKBERRY RD. IS CLOSED FROM E. MAIN ST. TO
            E. HWY. 66 DUE TO FLASH FLOODING. FLASH
            FLOODING RESULTING FROM RUNOFF FROM STORMS
            THAT OCCURRED EARLIER IN THE MORNING. HENCE
            THE DELAY. TIMING CONFIRMED WITH COUNTY
            OFFICIAL.

0133 PM     FLASH FLOOD      9 WNW VALENTINE         35.42N 113.81W
07/13/2021                   MOHAVE             AZ   COUNTY OFFICIAL

            MOHAVE COUNTY PUBLIC WORKS REPORTED ANTARES
            RD. IS CLOSED FROM E. US ROUTE 66 TO PIERCE
            FERRY RD. DUE TO FLASH FLOODING. FLASH
            FLOODING RESULTING FROM RUNOFF FROM STORMS
            THAT OCCURRED EARLIER IN THE MORNING. HENCE
            THE DELAY. TIMING CONFIRMED WITH COUNTY
            OFFICIAL. ROAD REOPENED AT APPROXIMATELY
            0925.

&&

MS