Area Forecast Discussion
Issued by NWS Las Vegas, NV

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS65 KVEF 242207
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
307 PM PDT Wed Apr 24 2019

.SYNOPSIS...
Dominant high pressure will allow temperatures to continue to rise
through Friday; reaching near daily record high temperatures over
the next couple of days. A few showers and storms will be possible
each afternoon through Friday across the southern Great Basin and
southern Sierra. The ridge will be replaced by an incoming low
pressure system from the Pacific late this weekend into early next
week. This will begin a decreasing trend in temperatures and an
increase in chances for showers and storms across the area.

&&

.DISCUSSION...Today through Tuesday.

High pressure will remain strong over the region today and tomorrow
before a series of weak waves moving across the PacNW and a
second incoming Pacific trough weaken the ridge as it shifts
eastward Friday into the weekend. The pattern will result in
periods of breezy conditions and a generous warming trend through
Saturday with high temps reaching well above seasonal normals each
day. High temps Thursday and Friday will be within reach of the
daily records in a few areas including Las Vegas. Underneath this
ridge, low level moisture located over central Nevada and the
higher elevations of Inyo County combined with warm sfc
temperatures will lead to some low-end instability each afternoon
through Saturday in these areas. These ingredients will support a
few isolated showers and even a few rumbles of thunder in our far
northern areas of the southern Great Basin as well as over the
Sierra and White Mtns. Thursday looks to be the best day to see
slightly higher coverage of these showers and storms which could potentially
reach as far south as the AZ Strip and the higher elevations of
Clark County.

On Sunday, the effects of the next incoming low pressure system will
begin to show themselves as this system draws nearer to the southern
California coast. Winds coming up slightly and temperatures
beginning a decreasing trend can be expected Sunday into Monday.
This system will move onshore Sunday night into Monday spreading
chances for showers and storms across portions of southern Nevada,
southeast California, and northwest Arizona. This trough will
become embedded in a larger trough digging southward from the Pac
Northwest across the Great Basin Monday into Tuesday. This will
keep temps on a trend closer to seasonal averages and as well as potential
for some continued rain chances.

&&

.AVIATION...For McCarran...Light, variable winds will continue
through the afternoon. Drainage southwest winds will replace the
variable winds later this evening. Similar to today, light winds are
expected in the morning, favoring a east to southeast direction.
During the late afternoon Thursday, a push of southwest winds around
10-14 knots will develop and continue through the evening. VFR
conditions expected with a few mid and high clouds passing at
times.

For the rest of southern Nevada, northwest Arizona and
southeast California...Light winds following typical diurnal trends will
continue into the evening and through Thursday morning. South to
southwest winds will develop Thursday afternoon, with speeds 10-20
knots and gusts around 20-30 knots. Dry conditions and no
operationally significant clouds expected.

&&

.CLIMATE...

Record high temperatures and year set for April 25 - April 27.

   April 25    April 26      April 27

Las Vegas          96/1946      97/1996      99/2000
Kingman            95/1921      94/2018      94/1927
Barstow-Daggett    96/2018      99/1996      99/2000
Bishop             87/2018      90/2000      90/1949
Needles           103/2018     105/2018     106/2000
Death Valley NP   109/1946     110/1996     110/2000

&&

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

$$
DISCUSSION...Guillet
AVIATION....Boothe

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

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


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.