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

VAZ024-022100-
RAWS 441631
37.63N  79.51W Elev. 865 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                 67          48          65          44          62
TEMP             45 54 63 65 57 56 51 51 48 56 63 62 51 49 46 45 44 53 60 58 47
DEWPT            39 42 41 40 40 39 37 32 27 29 30 32 34 38 42 41 40 42 34 33 30
MAX/MIN RH                   40          58          27          88          33
RH               79 64 44 40 53 53 59 48 44 35 29 32 52 66 86 86 86 66 37 39 51
WIND DIR          W SW  W  W  W  W  W  W  W  W  W  W SW  S  N NW NW  W NW NW NW
WIND SPD          3  8 12 11  9 10 10  8  5  6  8  5  3  1  1  2  2  3  5  3  2
WIND GUST              28 27                                                   
CLOUDS           B1 B1 SC FW FW FW FW FW FW FW CL CL CL CL FW FW SC SC SC FW FW
CLOUDS(%)        61 64 35 23 11  6 19 14  9  6  3  2  2  3 12 22 30 34 26 21 19
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                      5           0           0           0           0
LAL               1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1   
HAINES            2  4  4  4  4  3  3  4  4  4  4  5  4  4  2  2  4  3  4  5  5
MIX HGT          <1  2  4  3  1  1 <1  2  2  3  4  3 <1 <1 <1 <1 <1  2  3  3 <1
T WIND DIR        W  W  W  W SW  W  W  W  W NW NW  W SW SE  N NW NW NW NW NW NW
T WIND SPD        3 16 20 21 11 12 10 17 10 14 14 11  0  2  1  2  2 13 10  9  2
DISPERSION                   PR FR FR PR             VP VP VP VP             VP
ADI               3 34 55 53  8  8  7 11 30 49 53 37  0  1  1  1  2 37 33 35  1
MAX LVORI         5  1  1  1  2  2  3  2  2  1  1  1  2  3  6  6  6  1  1  1  2
STABILITY         C  D  D  D  E  E  E  E  C  C  C  C  G  G  G  G  B  B  C  B  G
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.40 28.31 28.38 28.48 28.56 28.51 28.51 28.51 28.56 28.62


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       31      47      39      54      25      45      31      48
TEMP          36 31 47 43 42 44 52 37 29 25 43 37 34 33 45 42
DEWPT         27 25 27 34 39 42 35 22 18 16 16 19 21 29 37 36
RH            69 78 45 70 89 93 52 54 63 68 33 48 58 85 73 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B2 B2 B1 SC FW SC SC SC B1 B2 B2 B1
POP 12HR            5       5      30      50       5       5      40      50
RAIN SHWRS                IS SC SC IS                SC SC SC
SNOWSHWRS                                            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