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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
244 PM EST Fri Dec 15 2017

VAZ020-160900-
RAWS 441801
37.99N  79.76W Elev. 2160 ft
244 PM EST Fri Dec 15 2017

Date           12/15/17      Sat 12/16/17            Sun 12/17/17            Mon
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                 25          43          27          47          39
TEMP          31 26 27 27 26 25 33 41 41 36 34 32 29 30 37 45 47 40 40 39 40 39
DEWPT         18 16 14 14 16 18 20 21 21 21 21 20 21 22 24 25 26 28 28 29 33 35
MIN/MAX RH                   76          42          76          43          85
RH            58 65 57 57 65 74 58 44 44 54 58 61 72 72 59 45 43 62 62 67 76 85
WIND DIR       W  W  W  W  W  W  W  W  W  W  W  W  W  W  W SW SW SW  W  W  W  W
WIND SPD      11 11 13 12 10  9 10 10  8  5  4  5  4  5  4  4  4  3  4  5  5  6
CLOUDS        SC SC SC SC FW FW CL CL CL CL CL FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%)     41 32 36 26 18 11  5  5  1  0  4 13 35 58 74 82 79 72 72 73 74 74
VSBY          10 10 10 10 10 10 10 10 10 10                                    
POP 12HR                      5           0           0          20          20
RAIN SHWRS                                                 IS IS IS IS         
LAL            1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1               
HAINES         2  2  2  2  2  2  2  3  4  4  4  4  4  4  5  4  3  3            
MIX HGT        3  2  2  2  2 <1  2  3  2 <1 <1 <1 <1 <1 <1  1  2 <1            
T WIND DIR     W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W  W            
T WIND SPD    26 32 37 33 28 23 21 23 19 17 10  9  8  6  5 17 25 14            
DISPERSION       FR FR FR FR             PR VP PR VP             VP VP PR PR   
ADI           79 20 47 41 27 19 43 61 43  7  2  2  2  7  5 19 49  6            
MAX LVORI      1  3  1  1  3  3  1  1  1  2  3  3  3  3  3  2  1  3            
STABILITY      C  E  D  D  D  C  C  C  C  F  F  F  F  D  D  D  D  F            
CEILING              None  None  None  None  None  None 14100  5900  5300      
STA PRES            27.75 27.80 27.85 27.89 27.98 28.00 27.99 27.93            


Date           12/18 Tue 12/19/17 Wed 12/20/17 Thu 12/21/17 Fri 12/22/17
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       51      42      55      35      45      30      48      38      52
TEMP          50 47 45 42 53 46 42 35 43 39 35 31 45 44 41 39 50 45
DEWPT         39 42 41 41 40 37 28 19 14 16 15 17 26 27 29 31 40 39
RH            66 83 86 96 61 71 57 52 30 39 43 56 47 51 62 73 68 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B1 B1 B1 B1 B1 B1 SC FW FW FW SC SC SC SC B1 B1 OV
POP 12HR           10      10      20       5       0       5       5      10      20
RAIN SHWRS                IS 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