Spot Forecast
Issued by NWS Memphis, TN

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000
FNUS74 KMEG 182021
FWSMEG

Spot Forecast for HS IU 26-1,2,3...USFS
National Weather Service Memphis TN
321 PM CDT Mon Mar 18 2024

Forecast is based on ignition time of 1600 CDT on March 18.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Expect gusty north winds for about the next 3-4 hours until sunset.
RH should also increase back over 30% after about 8PM tonight. Freezing
temperatures are expected overnight tonight. Tomorrow looks slightly cooler
and less windy (with a shift from the SW), though RH values will still
likely be in the 25-30% range tomorrow afternoon.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent).
Chance of pcpn......0 percent.
Max temperature.....Around 51.
Min humidity........26 percent.
Dewpoint............17.
Wind (20 ft)........Northwest winds around 12 mph with gusts to
                    around 18 mph.
Mixing height (m)...1829-1920 meters AGL.
Transport winds m/s.Northwest around 10 meters/second.
Smoke dispersal.....Fair (17900 knot-ft).

TIME (CDT)      4PM 5PM
Sky (%).........26  22
Weather cov.....
Weather type....
Tstm cov........
Chc of pcpn (%).0   0
Temp............51  50
Dewpoint........17  17
RH..............26  27
20 FT wind dir..NW  NW
20 FT wind spd..12  12
20 FT wind gust.18  16
Mix hgt (km)....1.9 1.8
Trans wind dir..NW  NW
Trans spd (m/s).10  10
Vrate kt-ft/1K..20  18
Ventrate Cat....PR  PR

.TONIGHT...

Sky/weather.........Mostly clear (5-15 percent). Areas of frost
                    after 3 am.
Chance of pcpn......0 percent.
Min temperature.....Around 26.
Max humidity........71 percent.
Dewpoint............16.
Wind (20 ft)........Northwest winds 5 to 10 mph in the evening
                    becoming light.
Mixing height (m)...122-1676 meters AGL.
Transport winds m/s.Northwest 5 to 9 meters/second shifting to the
                    north 1 to 4 meters/second in the late evening
                    and overnight, then shifting to the southwest
                    around 1 meters/second early in the morning.
Smoke dispersal.....Fair (14800 knot-ft) early in the evening
                    decreasing to poor (200 knot-ft) late in the
                    night.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........17  12  8   3   3   2   2   1   1   0   1   1
Weather cov.....                                        ARS ARS
Weather type....                                        FST FST
Tstm cov........
Chc of pcpn (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............49  46  42  40  38  36  34  32  31  30  28  27
Dewpoint........16  16  17  17  17  17  17  17  17  17  17  17
RH..............26  29  35  39  42  45  49  53  56  58  63  65
20 FT wind dir..NW  NW  NW  NW  NW  N   N   N   N   N   N   N
20 FT wind spd..10  9   7   6   5   3   2   2   1   0   0   0
20 FT wind gust.16  13  11  8   8   6   6   5   4   2   2   2
Mix hgt (km)....1.7 0.5 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Trans wind dir..NW  N   NW  N   N   N   N   N   N   N   NW  SW
Trans spd (m/s).9   7   5   4   4   4   4   3   2   1   1   1
Vrate kt-ft/1K..15  3   1   1   1   0   0   0   0   0   0   0
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TUESDAY...

Sky/weather.........Sunny (0-5 percent). Widespread frost early in
                    the morning.
Chance of pcpn......0 percent.
Max temperature.....Around 58.
Min humidity........27 percent.
Dewpoint............19 increasing to 23 in the afternoon.
Wind (20 ft)........Light winds becoming southwest 5 to 9 mph in
                    the late morning and afternoon.
Mixing height (m)...91-1097 meters AGL.
Transport winds m/s.Southwest 1 to 5 meters/second increasing to
                    west 7 to 9 meters/second in the late morning
                    and afternoon.
Smoke dispersal.....Poor (200 knot-ft).

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........2         0         1         1
Weather cov.....WIDSPD
Weather type....FROST     NONE      NONE      NONE
Tstm cov........
Chc of pcpn (%).0         0         0         0
Temp............26        35        52        58
Dewpoint........17        20        21        24
RH..............68        54        29        27
20 FT wind......N 0G4     SW 5G8    SW 7G12   SW 9G14
Mix hgt (m).....120       460       1040      1100
Tran wind (m/s).SW 1      SW 5      W 7       W 9
Vrate kt-ft/1K..0         2         8         10
Ventrate Cat....POOR      POOR      POOR      POOR

$$
Forecaster...Dirkes
Requested by...John Townsend
Type of request...PRESCRIBED
.TAG 2407204.1/MEG
.DELDT 03/18/24
.FormatterVersion 2.0.0
.EMAIL John.townsend@usda.gov


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