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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
410 AM EST Sat Dec 16 2017

VAZ012-162100-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
410 AM EST Sat Dec 16 2017

Date             Sat 12/16/17            Sun 12/17/17            Mon 12/18/17
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly     04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19

MAX/MIN TEMP                 44          30          48          37          55
TEMP             27 35 41 42 37 34 32 31 30 39 45 47 43 42 41 40 38 47 52 53 49
DEWPT            18 21 20 19 21 21 20 20 21 25 26 28 31 34 37 38 38 42 44 44 43
MAX/MIN RH                   37          70          46         100          68
RH               68 56 42 39 52 58 61 63 69 57 47 47 62 73 85 92100 83 74 71 80
WIND DIR          W  W  W  W  W  W  W  W  S SE SW SW  W  W  W  W  W  W  W  W  W
WIND SPD          9 10 11  9  8  6  5  3  1  2  4  5  5  6  6  5  4  6  9  8  5
CLOUDS           SC CL CL CL CL FW SC B1 B1 B2 B2 OV B2 B2 B2 B1 B2 B1 B1 B1 B1
CLOUDS(%)        36  0  1  0  1 12 27 52 69 76 84 89 84 70 73 65 72 66 60 51 66
VSBY              7  7 10 10 10 10 10 10                                       
POP 12HR                      0           0          30          30          20
RAIN SHWRS                                     SC SC SC SC SC SC IS IS IS IS IS
LAL               1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES            2  3  3  3  4  4  5  5  4  5  4  3  3  3  2  2  2  2  2  3  3
MIX HGT           1  2  2  2  1 <1 <1 <1 <1 <1 <1  2  1 <1 <1 <1 <1  2  2  2  2
T WIND DIR        W  W  W  W  W  W  W  W SW  S SW SW SW SW  W  W  W  W  W  W  W
T WIND SPD       20 21 20 18 21 16  8  5  3  3  4 14 18 12 17 14  8 28 32 28 31
DISPERSION                   PR PR PR VP             PR PR PR PR             PR
ADI              29 44 43 40 15 10  4  3  3  3  5 28 14 10 14 12  9 53 69 52 27
MAX LVORI         3  1  1  1  2  3  3  3  3  3  2  2  2  3  4  5  8  4  3  2  3
STABILITY         C  C  D  C  E  E  F  E  C  C  D  D  E  E  E  E  D  D  D  D  E
CEILING              None  None  None  None 10900  5500   100   100   100   100
STA PRES            27.37 27.38 27.44 27.45 27.44 27.39 27.40 27.40 27.41 27.34


Date          Tue 12/19/17 Wed 12/20/17 Thu 12/21/17 Fri 12/22/17
UTC 6hrly     06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly     01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19

MIN/MAX TEMP       42      56      36      47      32      54      39      56
TEMP          47 43 54 48 43 37 45 40 37 33 51 48 44 40 54 47
DEWPT         42 42 43 41 34 26 19 20 19 20 33 32 33 36 43 42
RH            83 96 66 77 70 64 35 44 48 58 50 54 65 85 66 83
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 B1 B1 SC FW FW FW FW FW SC SC B1 B2 OV
POP 12HR           20      20      20      10      20       5      10      30
RAIN SHWRS    IS IS IS IS IS          IS IS             SC SC

$$


This product is for planning and review purposes only and is not
to be substituted for an official fire weather spot forecast. The
data displayed are calculated from a 2.5 by 2.5 km digital
database and only approximates weather conditions in highly
varying terrain. Please relay any comments you have to the NWS via
email at rnk.webmaster@noaa.gov.

Below is a weather element key for this product.
(Note...winds do not reflect local terrain effects.)

DAY 1 THROUGH 3...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew point temperature
MIN/MAX RH OR MAX/MIN RH(%).........Maximum/Minimum humdity
RH(%)...............................Relative humidity
WIND DIR(8 POINT COMPASS)...........Wind direction
WIND SPD(MPH).......................Wind speed
CLOUDS(CATEGORY)....................Cloud cover category
     EXAMPLE: CL = CLEAR; FW = FEW; SC = Scattered; BK = Broken; OV = Overcast
CLOUDS(%)...........................Cloud cover as a percentage
VSBY................................Visibility value in statute miles
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER...
   TYPE...
       RAIN...........Rain
       RAIN SHWRS.....Rain showers
       TSTMS..........Thunderstorms
       DRIZZLE........Drizzle
       SNOW...........Snow
       SNOWSHWRS......Snow showers
       SLEET..........Sleet
       FRZG RAIN......Freezing rain
       FRZG DRZL......Freezing drizzle
   COVERAGE...
       IS.............Isolated
       SC.............Scattered
       NM.............Numerous
       O..............Occasional
       S..............Slight chance
       C..............Chance
       L..............Likely
       WD.............Widespread
       D..............Definite
       AR.............Areas
       PA.............Patchy
LAL(CATEGORY).......................Lightning Activity Level
HAINES(CATEGORY)....................Haines Index
MIX HGT(THOUSANDS OF FT AGL)........Mixing height
     Example: 6 = 6000 feet; 12 = 12000 feet; <1 = Less than 1000 foot
t WIND DIR(8 POINT COMPASS).........Transport Wind direction
T WIND SPD(MPH).....................Transport Wind speed
DISPERSION(CATEGORY)................Smoke Dispersion category
     Values: vp =Very Poor;PR = Poor; FR = Fair; GD = Good;
ADI (INDEX).........................Atmospheric Dispersion Index
MAX LVORI (INDEX)...................Low Visibility Occurrence Risk Index
STABILITY (CATEGORY)................Pasquill Turner Stability
CEILING (FT)........................Ceiling
STA PRES (INCHES MERCURY)...........Station pressure

Day 4 Through 7...
MAX/MIN TEMP OR MIN/MAX TEMP(F).....Maximum/Minimum air temperature
TEMP(F).............................Air temperature
DEWPT(F)............................Dew Point temperature
RH(%)...............................Relative Humidity
WIND SPD(MPH).......................Wind Speed
     Example: <15 = less than 15 MPH; 15> = 15 MPH or greater
AVE CLOUDS(CATEGORY)................Average Cloud Cover Category
POP 12HR(%).........................Probability for accumulating precipitation
WEATHER.............................See Day 1 through 3 weather descriptions