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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
940 PM EST Wed Dec 2 2020

VAZ012-030900-
RAWS 447502
37.01N  81.18W Elev. 2540 ft
940 PM EST Wed Dec 2 2020

Date           12/02/20      Thu 12/03/20            Fri 12/04/20            Sat
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                 19          55          32          52          36
TEMP                26 24 24 21 39 50 52 45 42 40 38 33 43 50 49 44 43 42 41 39
DEWPT               21 18 16 14 17 19 20 20 20 21 21 23 32 38 40 41 41 41 40 38
MIN/MAX RH                   81          25          65          49          96
RH                  81 77 71 74 40 29 28 36 41 46 50 66 65 63 71 89 93 96 96 96
WIND DIR             W NW NW  W SW SW SW SW SW SW SW SW SW SW  S  S  S  W NW  W
WIND SPD             6  4  3  3  3  5  6  5  4  3  4  4  5  6  4  4  4  6 10 11
CLOUDS              CL CL CL CL FW SC SC SC B1 B2 B2 B2 B2 B2 B2 OV OV OV OV B2
CLOUDS(%)            0  0  3  4 14 28 33 43 63 78 83 82 79 84 84100100 97 97 84
VSBY                 7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7            
POP 12HR                      0           0          20          60          80
RAIN                                            S  S  C  C  L  L  D  D  L  L  C
Obvis                                                                  PF      
LAL                  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1               
HAINES               4  5  5  5  5  5  5  5  5  5  4  3  3  4  2  3            
MIX HGT             <1 <1 <1 <1 <1  2  2  1 <1 <1 <1 <1 <1  2  3  1            
T WIND DIR           W NW NW  W SW SW  W SW SW SW SW  S  S SW SW  S            
T WIND SPD           8  4  4  2  5 11 16 14  5  6  5  3  2 12 26 14            
DISPERSION          PR VP VP             PR VP VP VP             VP VP PR FR   
ADI                  4  2  2  2  6 27 44 10  4  3  4  4  3 25 66 17            
MAX LVORI            3  3  3  3  2  2  1  2  2  2  2  3  3  2  3  4            
STABILITY            F  F  G  B  B  C  C  E  E  F  E  D  D  D  D  D            
CEILING                    None  None  None  7400  4300  2200  3000   700      
STA PRES                  27.42 27.42 27.36 27.34 27.29 27.23 27.15            


Date           12/05 Sun 12/06/20 Mon 12/07/20 Tue 12/08/20 Wed 12/09/20
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       46      27      39      24      40      25      40      27      47
TEMP          42 34 31 28 37 32 28 26 38 31 28 26 38 32 29 28 44 36
DEWPT         38 29 25 22 26 23 22 22 27 23 23 21 26 24 24 24 29 27
RH            86 82 78 78 64 69 78 85 64 72 81 81 62 72 81 85 55 69
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B1 B2 B1 SC SC SC SC SC SC SC B1 B1 SC SC SC SC SC
POP 12HR           40      10       5       5       5       5       5       0       5
RAIN           C                                                   
RAIN SHWRS    SC 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