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

NCZ001-022100-
RAWS 310142
36.40N  81.46W Elev. 4608 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                 53          42          58          45          52
TEMP             43 44 48 51 51 48 45 44 42 50 56 57 53 51 48 46 45 48 51 50 45
DEWPT            38 36 34 35 35 35 35 31 30 31 32 35 35 36 36 37 37 37 34 34 33
MAX/MIN RH                   52          68          39          73          50
RH               82 73 58 54 54 60 68 60 62 48 40 43 50 56 63 71 73 65 52 54 62
WIND DIR          W  W  W  W  W  W NW NW NW  W  W  W  W SW  W  W NW NW NW NW  N
WIND SPD         19 21 23 21 24 26 24 24 21 16 11 10 11 10 11 13 16 13 11  9 10
WIND GUST        34 37 42 41 40 46 41 41 36 26                                 
CLOUDS           B1 SC FW FW CL FW FW FW FW SC FW CL CL FW SC SC SC SC SC SC SC
CLOUDS(%)        61 46 23 12  5  8 18 23 23 29 16  2  5 15 28 42 44 50 48 39 40
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                     10           0           0           0           5
LAL               1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES            2  2  2  4  4  4  2  2  4  4  4  4  4  4  4  4  4  4  3  3  4
MIX HGT          <1  1  2  1 <1 <1 <1 <1 <1  1  2  2 <1 <1 <1 <1 <1 <1  1  1 <1
T WIND DIR        W  W  W  W  W  W NW NW NW NW  W  W  W  W  W  W NW  W NW NW NW
T WIND SPD       49 51 52 50 50 60 54 47 42 34 31 23 23 27 11 13 16 29 28 18  8
DISPERSION                   GD GD GD GD             FR FR FR FR             FR
ADI              54 75 90 75 46 55 48 42 47 45 54 50 15 18  8 12 17 38 46 27  6
MAX LVORI         3  3  1  1  1  1  1  1  1  1  1  1  2  2  3  3  3  3  1  2  3
STABILITY         D  D  D  D  D  D  D  D  D  D  D  C  E  E  E  D  D  D  D  C  E
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            26.63 26.60 26.63 26.68 26.74 26.70 26.72 26.71 26.75 26.78


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       36      43      40      46      23      35      30      45
TEMP          37 36 41 42 42 44 36 29 25 23 33 31 35 38 42 38
DEWPT         28 23 29 33 35 38 25 16 12 10  9 14 18 28 32 32
RH            70 59 62 70 76 79 64 58 57 57 36 49 49 67 67 79
WIND SPD          <15     <15     15>     15>     15>     <15     15>     15>
AVG CLOUDS    SC SC SC SC B2 B2 B1 SC FW SC SC SC SC B1 B2 B1
POP 12HR            5       5      30      50       5      10      40      50
RAIN SHWRS                IS SC SC                IS SC SC SC
SNOWSHWRS                          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