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843
FNUS72 KCAE 251218
FWSCAE

SPOT FORECAST FOR SITE PREP COMP 65...US FOREST SERVICE
NATIONAL WEATHER SERVICE COLUMBIA SC
818 AM EDT SAT OCT 25 2014

FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON OCTOBER 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A BROAD AREA OF HIGH PRESSURE EXTENDING FROM THE
GREAT LAKES DOWN INTO THE LOWER MISSISSIPPI VALLEY WILL KEEP DRY
WEATHER CONDITIONS ACROSS THE AREA THROUGH SUNDAY. THE MAIN
BURNING ISSUE THROUGH THE DAY WILL BE THE LIGHT SURFACE AND
TRANSPORT WINDS. TRANSPORT WINDS ARE NOT EXPECTED TO EXCEED 7 TO 8
MPH WITH EVEN LIGHTER WINDS AT THE SURFACE. THE INVERSION WILL
BEGIN TO SETUP OVER THE BURN SITE BETWEEN 6 PM AND 7 PM.

IT WILL BE VERY DRY TODAY AND SUNDAY WITH MINIMUM RELATIVE
HUMIDITIES DROPPING TO 25 TO 30 PERCENT DURING THE PEAK HEATING OF
THE DAY. WINDS WILL BE MAINLY FROM THE NORTHWEST TODAY BUT TRENDING
MORE WESTERLY BY LATE THIS AFTERNOON.

.TODAY...
TIME (EDT)          9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%)..............0   0   0   0   0   0   0   0   0
WEATHER COV..........
WEATHER TYPE.........
TEMP.................49  56  63  68  72  74  75  76  76
RH...................78  66  54  45  37  33  29  28  28
20 FT WIND DIR.......N   N   N   N   N   NW  NW  NW  NW
20 FT WIND DIR.......010 010 010 000 340 330 330 320 310
20 FT WIND SPD.......2   2   2   2   2   2   3   4   4
20 FT WIND GUST......5   5   5   5   5   5   5   5   10
MIX HGT (KFT)........0.8 1.4 1.2 1.4 2.1 2.6 3.1 3.5 3.2
TRANSP WIND DIR......N   N   N   N   N   NW  NW  NW  NW
TRANSP WIND SPD......5   6   7   7   6   6   7   8   8
LVORI................6   2   2   2   2   2   2   2   2

.TONIGHT...
TIME (EDT)          6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%)..............0   0   0   0   0   0   1   2   2   2   1   0
WEATHER COV..........                                            PTY
WEATHER TYPE.........                                            FOG
TEMP.................74  67  63  60  57  55  54  52  52  50  49  48
RH...................32  43  54  60  67  69  71  80  80  86  89  93
20 FT WIND DIR.......NW  W   W   W   W   W   W   NW  NW  NW  NW  NW
20 FT WIND DIR.......300 290 280 280 290 290 290 310 320 320 320 320
20 FT WIND SPD.......3   2   1   1   1   2   2   2   2   2   2   2
20 FT WIND GUST......5   5               5   5   5   5   5   5   5
MIX HGT (KFT)........2.3 1.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2
TRANSP WIND DIR......NW  NW  W   W   W   W   W   W   W   W   W   W
TRANSP WIND SPD......7   6   6   5   5   3   3   2   2   2   2   2
LVORI................2   2   2   2   3   3   3   5   5   5   7   7

.SUNDAY...
TIME (EDT)          6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%)..............0   0   0   0   0   0   0   0   0   0   0   0
WEATHER COV..........PTY PTY PTY
WEATHER TYPE.........FOG FOG FOG
TEMP.................48  47  47  53  61  68  74  78  81  82  83  83
RH...................93  96  96  84  68  54  43  36  30  28  26  27
20 FT WIND DIR.......NW  NW  N   N   N   N   N   N   NW  NW  NW  NW
20 FT WIND DIR.......320 330 340 340 000 010 000 340 330 330 320 310
20 FT WIND SPD.......2   2   2   2   2   2   4   5   5   5   5   5
20 FT WIND GUST......5   5   5   5   5   10  10  10  10  10  10  15
MIX HGT (KFT)........0.2 0.2 0.4 0.7 1.3 0.5 0.1 0.7 2.4 2.4 3.3 3.3
TRANSP WIND DIR......W   W   W   NW  NW  NW  NW  NW  NW  NW  NW  NW
TRANSP WIND SPD......2   2   2   3   6   9   12  13  13  13  13  12
LVORI................7   8   8   8   2   2   2   1   1   1   1   1

$$
FORECASTER...VAUGHAN
REQUESTED BY...SAVANNAH RIVER
TYPE OF REQUEST...PRESCRIBED
.TAG 20141025.SITEP.01/CAE







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