585
FXUS65 KVEF 132151
AFDVEF

Area Forecast Discussion
National Weather Service Las Vegas NV
251 PM PDT Fri Jun 13 2025

.SYNOPSIS...Temperatures will gradually increase through the
weekend, peaking on Sunday. An Extreme Heat Warning is in effect for
lower elevations of southeastern California, southern Nevada, and
northwestern Arizona. Meanwhile, expect breezy-to-gusty
southwesterly winds each afternoon through the forecast period.
Temperatures will cool slightly early next week, but remain above
normal through much of next week.

&&

.DISCUSSION...Today through Thursday.

A building area of high pressure over the southeastern Pacific Ocean
will bring increasing heights across the Desert Southwest, resulting
in above normal temperatures each day. Temperatures will peak on
Sunday at 8 to 12 degrees above seasonal normals, with a forecast
temperature of 108 for Las Vegas. "Major" HeatRisk is likely for
most of the lower valleys of southern Nevada and southern Mohave
County on Sunday along with a mix of "Moderate" and "Major" HeatRisk
for portions of Death Valley. The current Extreme Heat Warning for
Sunday still looks good and at this time there is no need to extend
into Monday as most areas drop into at least the "Moderate"
category. The areas included in the Extreme Heat Warning include,
Death Valley National Park, western San Bernardino County, far
southern Nye County, lower elevations of Clark County including Las
Vegas, southern Mohave County, and the Colorado River Valley
including the Lake Mead National Recreation Area. If planning to
spend time outdoors this weekend, avoid the hottest parts of the
day, bring plenty of water, and wear sunscreen.

A weak trough will push into the region early next week bringing
temperatures down slightly, but also bringing increasing southwest
winds. Most of the region will see wind gusts between 25-35 mph, but
a few locations along the eastern Sierra slopes and the western
Mojave Desert will see a 60-70% chance of wind gusts exceeding 40
mph. At this point, these higher gusts look to be fairly isolated,
but we will continue to monitor to see if any wind headlines are
needed. This will also result in increased fire concerns across the
forecast area, so be aware of this if recreating outside with sparks
or flames.

The "coolest" day will be Tuesday as the base of the trough moves
through the Great Basin with temperatures only slightly above
normal. This drop in temperatures will be short-lived as ridging
begins to rebuild over the area bringing an increase in daily
temperatures through the middle to end of next week. No threat of
precipitation during the period.

&&

.AVIATION...For Harry Reid...For the 00Z Forecast Package...
Gusts to 20-25KT will continue into this evening before diminishing
to around 10 kts overnight. Otherwise, VFR conditions will prevail
with high clouds that are not expected to impact operations.
Temperatures are expected to fall under 100 degrees around 03Z.
South to southwest wind will increase early afternoon Saturday with
occasional gusts to around 20 kts. Temperatures Saturday will once
again exceed 100 degrees between 20z-04z and peak around 106
degrees.

For the rest of southern Nevada, northwest Arizona and southeast
California...For the 00Z Forecast Package...Gusty southwesterly
winds are the primary aviation concern across the region, with
widespread gusts to 20-25KT expected into this evening with winds
decreasing overnight. VFR conditions will prevail, with passing high
clouds with bases around 25kft. South to southwest winds will
increase again Saturday with most areas seeing wind gusts 15-25 kts.

&&

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

&&

$$

DISCUSSION...Gorelow
AVIATION...Gorelow

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