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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
249 PM EST Thu Dec 14 2017

NCZ001-150900-
RAWS 310141
36.40N  81.29W Elev. 3009 ft
249 PM EST Thu Dec 14 2017

Date           12/14/17      Fri 12/15/17            Sat 12/16/17            Sun
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07

MIN/MAX TEMP                 23          33          24          41          30
TEMP          36 31 29 27 26 25 29 33 31 27 26 26 26 26 32 39 40 35 33 33 33 34
DEWPT         21 21 20 21 21 19 21 20 18 16 16 17 18 18 20 20 21 20 20 20 19 19
MIN/MAX RH                   86          55          71          45          57
RH            54 66 69 78 81 78 72 58 58 63 65 68 71 71 61 46 46 54 58 58 56 54
WIND DIR      NW NW NW  W  W SW  W  W  W NW  W  W  W  W  W  W  W  W  W  W  W SW
WIND SPD       8  6  4  3  3  2  4  9 11 12 13 11 13 10 11  9  8  5  4  2  3  2
CLOUDS        B1 B1 B1 SC SC SC B1 B1 B1 SC FW FW FW FW FW FW CL FW FW SC SC B1
CLOUDS(%)     56 57 53 43 49 42 63 68 61 36 21 24 25 21 12  8  5 14 13 33 36 57
VSBY          10  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7            
POP 12HR                      0           0           5           0           0
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1               
HAINES         2  3  3  2  2  2  2  3  3  3  3  3  3  4  4  4  4  4            
MIX HGT        2  1 <1 <1 <1 <1  2  2  2  1  1  1  1 <1  1  1  1 <1            
T WIND DIR     W NW NW NW SW SW  W  W  W  W NW NW NW NW NW  W  W  W            
T WIND SPD     8  6  6  6  4  3  8 14 21 26 32 33 32 24 24 11  8  5            
DISPERSION       PR VP VP VP             FR FR FR FR             PR VP VP VP   
ADI           15  4  5  3  2  4 13 29 48 29 21 38 36 26 41 22 12  3            
MAX LVORI      2  3  3  3  3  4  3  2  1  2  2  1  3  3  1  2  2  2            
STABILITY      D  E  E  F  F  D  D  D  C  D  E  D  D  D  C  C  C  F            
CEILING              None  None   200  None  None  None  None  None  None      
STA PRES            27.09 27.10 27.10 27.09 27.15 27.19 27.28 27.31            


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

MAX/MIN TEMP       45      37      52      41      50      32      41      31      47
TEMP          44 40 42 43 50 46 45 44 50 44 39 34 37 34 33 32 MM MM
DEWPT         25 28 34 36 42 39 38 36 38 32 29 24 21 20 21 22 MM MM
RH            47 62 73 76 74 76 76 73 63 62 67 66 52 56 61 66 MM MM
WIND SPD          <15     <15     <15     <15     <15     <15     15>     15>     15>
AVG CLOUDS    B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC FW FW FW FW CL CL MM
POP 12HR           40      40      20      10      20      10      10       0       0
RAIN SHWRS       SC SC SC IS IS          IS                        

$$


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