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000
FXUS65 KVEF 271600
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
900 AM PDT FRI MAY 27 2016

.SYNOPSIS...Temperatures over the holiday weekend will edge
closer to normal for late May with a chance of afternoon and
evening thunderstorms primarily over the higher terrain of the
southern Great Basin and Mojave Desert. Elsewhere, mostly sunny to
partly cloudy skies are expected. Above normal temperatures will
develop by the middle of next week with the first bout of widespread
triple digit heat across the Mojave Desert.


&&

.UPDATE...Rising 500 mb heights are helping to produce a decent
inversion just below 500 mb which will further decrease any shower
or storm chances over yesterday, with most activity likely limited
to the Sierra Nevada. Inherited sky grids look at little high
compared to satellite trends, but within category. Otherwise,
forecast in good shape and no updates planned this morning.


&&

.PREV DISCUSSION...
Issued at 213 AM PDT FRI MAY 27 2016

.SHORT TERM...Today through Sunday.

Weak troughing will be over the area through the holiday weekend
with scattered clouds and a slight chance of showers and isolated
thunderstorms primarily over the higher terrain in northern Inyo and
south central Nevada. It looks like convection will be limited today
with troughing just beginning to form along the coast and model
stability progs showing only marginally unstable LIs and low end
CAPE values over the Sierra. Better potential exists for the higher
terrain of the far western CWA including the Sierra on Saturday with
low pressure over central California. The general wind flow will
become favorable and combine with daytime heating to provide enough
lift to generate a few showers/storms mainly over the Sierra in the
afternoon. Low pressure is forecast over the southern CWA Sunday
with scattered clouds around much of the area but the better
instability is still limited to the Sierra and south central Nevada
mountains. However, there may be a few mountain showers/storms over
the higher terrain of Clark, San Bernardino and Mohave county as
well.

Overall, winds will be on the light side through the weekend unless
associated with showers and thunderstorms. Temperatures will inch up
close to seasonal normals over the weekend but the lower heights
provided by the trough will keep them from becoming any warmer. The
heat will hold off until the upcoming week and is discussed in the
long term section.

.LONG TERM...Monday through Friday.

There remains a chance of isolated showers and thunderstorms across
mainly the higher terrain of northern Inyo, Esmeralda, central Nye,
and Lincoln counties to round out the holiday weekend. Then the
focus will shift to a pattern change that will swiftly bring dry
conditions and much warmer temperatures. Strong high pressure will
work into the western CONUS next week. Temperatures are expected to
be near normal Monday, but then quickly warm to roughly 5-10 degrees
above normal Wednesday through Friday. The heat might even linger.
&&

.AVIATION...For McCarran...No significant weather expected with VFR
conditions and light winds following typical diurnal trends. A very
small chance of showers on the mountains today but will likely stay
clear of the terminal.

For the rest of southern Nevada...northwest Arizona...and southeast
California...No significant weather expected with light winds
following typical diurnal trends for most terminals through the
period. The exception could be KBIH late this afternoon into the
early evening when thunderstorm outflow moves in from the north and
could produce a storm near the terminal along with gusty north
winds. Otherwise, shower chances will be limited to the higher
terrain of the southern Great Basin and Sierra Nevada with perhaps
another chance of breezy west winds at KDAG during the afternoon
and evening.
&&

&&

$$

Update................Steele
Short Term/Aviation...Salmen
Long Term.............Paddock

For more forecast information...see us on our webpage:

http://weather.gov/lasvegas or follow us on Facebook and Twitter





000
FXUS65 KVEF 270913
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
213 AM PDT FRI MAY 27 2016

.SYNOPSIS...Temperatures over the holiday weekend will edge
closer to normal for late May with a threat of afternoon and evening
thunderstorms primarily over the higher terrain of the southern
Great Basin and Mojave Desert. Elsewhere, mostly sunny to partly
cloudy skies are expected. Above normal temperatures will develop by
the middle of next week with the first bout of widespread triple
digit heat across the Mojave Desert.
&&

.SHORT TERM...Today through Sunday.

Weak troughing will be over the area through the holiday weekend
with scattered clouds and a slight chance of showers and isolated
thunderstorms primarily over the higher terrain in northern Inyo and
south central Nevada. It looks like convection will be limited today
with troughing just beginning to form along the coast and model
stability progs showing only marginally unstable LIs and low end
CAPE values over the Sierra. Better potential exists for the higher
terrain of the far western CWA including the Sierra on Saturday with
low pressure over central California. The general wind flow will
become favorable and combine with daytime heating to provide enough
lift to generate a few showers/storms mainly over the Sierra in the
afternoon. Low pressure is forecast over the southern CWA Sunday
with scattered clouds around much of the area but the better
instability is still limited to the Sierra and south central Nevada
mountains. However, there may be a few mountain showers/storms over
the higher terrain of Clark, San Bernardino and Mohave county as
well.

Overall, winds will be on the light side through the weekend unless
associated with showers and thunderstorms. Temperatures will inch up
close to seasonal normals over the weekend but the lower heights
provided by the trough will keep them from becoming any warmer. The
heat will hold off until the upcoming week and is discussed in the
long term section.

.LONG TERM...Monday through Friday.

There remains a chance of isolated showers and thunderstorms across
mainly the higher terrain of northern Inyo, Esmeralda, central Nye,
and Lincoln counties to round out the holiday weekend. Then the
focus will shift to a pattern change that will swiftly bring dry
conditions and much warmer temperatures. Strong high pressure will
work into the western CONUS next week. Temperatures are expected to
be near normal Monday, but then quickly warm to roughly 5-10 degrees
above normal Wednesday through Friday. The heat might even linger.
&&

.AVIATION...For McCarran...No significant weather expected with VFR
conditions and light winds following typical diurnal trends. A very
small chance of showers on the mountains today but will likely stay
clear of the terminal.

For the rest of southern Nevada...northwest Arizona...and southeast
California...No significant weather expected with light winds
following typical diurnal trends for most terminals through the
period. The exception could be KBIH late this afternoon into the
early evening when thunderstorm outflow moves in from the north and
could produce a storm near the terminal along with gusty north
winds. Otherwise, shower chances will be limited to the higher
terrain of the southern Great Basin and Sierra Nevada with perhaps
another chance of breezy west winds at KDAG during the afternoon
and evening.
&&

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

$$

Short Term/Aviation...Salmen
Long Term...Paddock

For more forecast information...see us on our webpage:

http://weather.gov/lasvegas or follow us on Facebook and Twitter





000
FXUS65 KVEF 261659 AAA
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
958 AM PDT THU MAY 26 2016

.SYNOPSIS...Low pressure will move east into Arizona today with
residual moisture and instability leading to a few showers and
thunderstorms over the southern Great Basin through Friday. A low
impact weather forecast is in store for the Memorial Day weekend
with temperatures remaining a few degrees below normal under mostly
sunny skies and light winds. Hotter conditions are still possible
heading into the middle of next week.
&&

.UPDATE...Upper low that was over southern California yesterday is
over northeast Arizona this morning. Shortwave energy moving south
across southern Nevada within backside of exiting trough will help
in the development of convection today. Best CAPE values highlight
the higher terrain of Lincoln, Clark, central Nye, northern Mohave
Counties as well as the Sierra Nevada today. Like yesterday, brief
heavy rainfall possible under a cell in the mountains with gusty
winds primary impact for the lower desert valleys. Forecast in good
shape but did increase pops slightly for southern Clark County and
mountains of the Mojave Natl Preserve in northeast San Bernardino
County. As the dynamics wane this evening storms will dissipate
just quickly. Update has already be sent out.
&&


.PREV DISCUSSION...223 AM PDT THU MAY 26 2016
.DISCUSSION...For the next 7 days.

Low pressure will move east today and northwest flow will set up
behind the departing system. In the northerly flow behind the
system, showers and thunderstorms could form over some of the
northern areas including the Sierra and the southern Great Basin.
Elsewhere, dry conditions are forecast. Weak troughing will develop
and linger over the southwestern states through the weekend which
will keep temperatures on the moderate side and a few degrees below
normal. It will also lead to showers and thunderstorms developing
each day over the Sierra and southern Great Basin mountains.
Overall, it looks like weather will cooperate for Memorial Day
weekend activities.

Crank up the atmospheric thermostat for next week with above normal
temperatures returning to the area Tuesday for the first time since
May 19th and there is potential for the first official Las Vegas 100
degree temperature of the year on Wednesday.
&&

.AVIATION...For McCarran...VFR conditions are expected at the
terminal. Some showers will again be possible mainly over the
mountains this afternoon, with scattered bases around 10 Kft. These
showers may generate gusty west-southwest winds through the evening,
otherwise generally light diurnal winds are expected into Friday.

For the rest of southern Nevada...northwest Arizona...and southeast
California...VFR conditions are expected at all terminals. Isolated
to scattered showers will again develop across the southern Great
Basin and southern Sierra this afternoon. Cloud bases will generally
be 8-10 Kft. These showers may generate gusty winds if near a
terminal, otherwise mainly diurnal winds are expected. The
exceptions will be KBIH and KDAG, where northerly and westerly
winds, respectively, are anticipated into Friday.
&&

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

$$

Discussion...Salmen
Aviation...Paddock

For more forecast information...see us on our webpage:

http://weather.gov/lasvegas or follow us on Facebook and Twitter





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