862
FNUS75 KCYS 021150
FWSCYS

Spot Forecast for HAM Radio Event...Laramie County
National Weather Service Cheyenne WY
550 AM MDT Sun Aug 2 2026

If conditions become unrepresentative, contact the National Weather
Service at (307) 772-2227

...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 9 PM MDT
THIS EVENING...

.DISCUSSION...

Near record breaking heat today as we sit firmly under a stout
ridge of high pressure. Look for highs to top out near 100 degrees
F by this afternoon under plentiful sunshine. Expect warmer
temperatures to linger late into the evening hours.

.TODAY...

Sky/weather.........Mostly sunny (25-35 percent).
Max temperature.....Around 98.
Min humidity........9 percent.
Surface winds (mph).West winds around 5 mph increasing to southwest
                    6 to 7 mph early in the morning, then shifting
                    to the south late in the afternoon.

TIME (MDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........24     31     12     19     37     43
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............59     70     87     93     96     98
RH..............57     38     18     13     11     9
Surface wind....W 5    W 6    W 7    SW 6   W 7    S 6
Surface wnd gst.7      8      10     8      10     8

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent) then becoming
                    mostly cloudy (50-60 percent) then becoming
                    partly cloudy (25-35 percent).
Min temperature.....Around 64.
Max humidity........37 percent.
Surface winds (mph).Southwest winds 7 to 13 mph shifting to the
                    west around 6 mph after 3 am.

TIME (MDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........61     61     53     36     47     16
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............95     87     78     73     70     66
RH..............11     16     26     33     35     37
Surface wind....S 9    S 8    SE 10  S 12   SW 9   W 6
Surface wnd gst.14     12     15     17     14     8

.MONDAY...

Sky/weather.........Mostly sunny (30-40 percent) then becoming
                    partly sunny (50-60 percent). Slight chance of
                    showers early in the afternoon.
Max temperature.....Around 92.
Min humidity........14 percent.
Surface winds (mph).Northwest winds around 7 mph shifting to the
                    north 7 to 17 mph in the late morning and
                    afternoon.

TIME (MDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........23     29     28     44     73     34
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
Temp............64     74     87     89     92     85
RH..............30     22     15     15     15     18
Surface wind....W 7    NW 7   N 9    N 13   N 15   N 17
Surface wnd gst.10     10     14     18     22     25

$$
Forecaster...Zawislak
Requested by...Beth Harris
Type of request...OTHER
.TAG 2600000.0/CYS
.DELDT 08/02/26
.FormatterVersion 2.0.0
.EMAIL beth.harris@laramiecountywy.gov