621
FNUS74 KJAN 181315
FWSJAN

Spot Forecast for C77 RX Burn...USFS
National Weather Service Jackson MS
815 AM CDT Fri Apr 18 2025

Forecast is based on ignition time of 1000 CDT on April 18.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Fog is not expected to develop overnight, as winds
will continue to mix. The requested HYSPLIT will be emailed as
soon as it is available.

.REST OF TODAY...

Sky/weather.........Mostly sunny (40-50 percent).
Temperature.........72 at ignition...Max 88.
RH..................76 percent at ignition...Min 40 percent.
Wind (20 ft)........Winds south at 8 mph at ignition...otherwise
                    South winds 7 to 8 mph with gusts to around 26
                    mph.
Mixing height (m)...701 meters AGL at ignition...otherwise 701-1494
                    meters AGL.
Transport winds.....South 20 to 21 mph.
Transport winds m/s.South around 9 meters/second.

TIME (CDT)      10 AM  Noon   2 PM   4 PM
Sky cover.......MCldy  MCldy  PCldy  PCldy
Weather cov.....
Weather type....None   None   None   None
Tstm cov........
Temp............72     79     86     88
RH..............76     62     46     40
20 ft wind dir..S      S      S      S
20 ft wind spd..7      8      8      8
20 ft wind gust.25     25     26     25
Mix hgt (m).....700    980    1250   1490
Transport wind..S 20   S 20   S 20   S 21
Tran wind (m/s).S 9    S 9    S 9    S 9

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent) then becoming
                    mostly cloudy (65-75 percent).
Temperature.........Min 64.
RH..................Max 100 percent.
Wind (20 ft)........South winds 5 to 8 mph with gusts to around 25
                    mph.
Mixing height (m)...152-518 meters AGL.
Transport winds.....South 14 to 16 mph.
Transport winds m/s.South 6 to 7 meters/second.

TIME (CDT)      6 PM   8 PM   10 PM  Midngt 2 AM   4 AM
Sky cover.......MClear MClear MClear PCldy  MCldy  MCldy
Weather cov.....
Weather type....None   None   None   None   None   None
Tstm cov........
Temp............84     74     69     67     65     65
RH..............46     62     78     90     100    100
20 ft wind dir..S      S      S      S      S      S
20 ft wind spd..8      7      7      6      5      6
20 ft wind gust.25     24     24     23     21     20
Mix hgt (m).....520    150    150    210    240    210
Transport wind..S 16   S 16   S 15   S 15   S 16   S 14
Tran wind (m/s).S 7    S 7    S 7    S 7    S 7    S 6

.SATURDAY...

Sky/weather.........Partly sunny (60-70 percent).
Temperature.........Max 87.
RH..................Min 45 percent.
Wind (20 ft)........South winds 5 to 8 mph. Gusts up to 22 mph.
Mixing height (m)...244-1524 meters AGL.
Transport winds.....South 15 to 22 mph.
Transport winds m/s.South 7 to 10 meters/second.

TIME (CDT)      6 AM   8 AM   10 AM  Noon   2 PM   4 PM
Sky cover.......MCldy  MCldy  MCldy  MCldy  MCldy  MCldy
Weather cov.....
Weather type....None   None   None   None   None   None
Tstm cov........
Temp............66     68     76     81     84     86
RH..............100    93     71     58     49     45
20 ft wind dir..S      S      S      S      S      S
20 ft wind spd..6      6      7      8      8      7
20 ft wind gust.18     20     22     22     22     21
Mix hgt (m).....300    460    700    940    1250   1520
Transport wind..S 16   S 20   S 21   S 22   S 22   S 20
Tran wind (m/s).S 7    S 9    S 9    S 10   S 10   S 9

$$
Forecaster...Campbell
Requested by...USFS
Type of request...PRESCRIBED
.TAG 2510996.0/JAN
.DELDT 04/18/25
.FormatterVersion 2.0.0
.EMAIL john.crews@usda.gov