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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
527 AM EST Thu Dec 2 2021

WVZ043-022100-
RAWS 465401
37.53N  81.00W Elev. 2725 ft
527 AM EST Thu Dec 2 2021

Date             Thu 12/02/21            Fri 12/03/21            Sat 12/04/21
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                 59          41          59          45          52
TEMP             46 50 57 57 54 52 47 44 41 52 57 57 51 49 48 47 45 49 51 51 41
DEWPT            42 43 39 37 37 39 36 32 30 31 32 32 36 38 40 40 40 39 33 29 28
MAX/MIN RH                   46          66          36          83          42
RH               86 77 51 47 52 61 65 62 65 44 38 38 56 66 74 76 82 68 50 42 59
WIND DIR          W  W  W  W  W  W  W  W  W  W  W  W SW SW  W  W  W NW NW NW NW
WIND SPD          9 13 17 17 14 13 12 10  8  8  9  8  4  3  4  5  6  8  6  5  4
WIND GUST           24 32 32 25                                                
CLOUDS           B2 B1 SC FW CL CL SC FW CL FW FW CL CL CL FW SC SC SC SC FW FW
CLOUDS(%)        85 61 26 22  3  3 27 12  3 10  7  2  2  5 16 30 41 49 33 20 17
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                     10           5           0           5           5
RAIN SHWRS                                                                     
LAL               1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES            2  4  5  4  4  3  2  4  4  4  4  4  4  4  4  3  2  2  3  4  4
MIX HGT           1  2  3  2  1 <1  1  2  1  2  3  2 <1 <1 <1 <1 <1  2  2  2  1
T WIND DIR        W  W  W  W  W  W NW NW NW  W  W  W SW  S SW  W  W NW NW NW  N
T WIND SPD       24 27 40 33 34 29 29 29 19 20 17 13  6 11 14 16 17 20 18 13 14
DISPERSION                   GD FR FR FR             VP VP VP PR             VP
ADI              31 54 89 64 31 27 26 20 36 54 55 39  3  5  7  7 13 54 47 36  6
MAX LVORI         4  3  1  1  1  2  3  2  3  1  1  1  3  3  3  4  4  1  1  1  3
STABILITY         D  D  D  D  D  D  D  E  C  C  C  C  F  G  F  F  C  C  C  C  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            27.55 27.51 27.59 27.64 27.70 27.63 27.65 27.67 27.73 27.79


Date          Sun 12/05/21 Mon 12/06/21 Tue 12/07/21 Wed 12/08/21
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       34      49      42      47      22      39      32      46
TEMP          36 34 47 44 44 45 38 30 25 22 36 33 35 36 43 38
DEWPT         27 26 30 34 39 42 26 18 16 15 14 16 24 32 36 33
RH            69 72 51 68 82 89 62 60 68 74 40 49 64 85 76 82
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B1 B2 B2 SC SC B1 SC SC B1 B2 B2 B2
POP 12HR            5      10      50      60      10      10      50      60
RAIN SHWRS                SC SC NM SC             IS SC NM 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