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

VAZ020-022100-
RAWS 441801
37.99N  79.76W Elev. 2160 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                 61          42          59          43          57
TEMP             44 50 58 59 54 52 47 45 42 51 57 56 48 46 44 44 43 50 55 53 43
DEWPT            40 41 39 39 37 37 32 28 24 26 28 28 32 36 39 39 37 39 30 28 25
MAX/MIN RH                   46          56          31          82          33
RH               86 71 49 47 52 56 56 51 48 37 33 34 54 68 82 82 79 66 38 38 49
WIND DIR          W  W  W  W  W  W NW  W  W  W  W  W  W  W  W  W  W NW NW NW NW
WIND SPD          9 12 16 14 14 16 13 10  8  8  9  8  5  3  5  5  5  6  8  5  4
WIND GUST              28 28    26 24                                          
CLOUDS           B2 B1 FW FW FW FW FW FW CL FW FW CL CL CL FW FW SC SC SC FW FW
CLOUDS(%)        78 59 22 11  8  6  6  9  5  7  7  3  2  4 11 23 31 31 26 16 16
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                     10           5           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  3  4  4  4  2  3  4  4  4  4  5  4  4  2  2  2  3  4  4  5
MIX HGT          <1  2  3  2 <1 <1  2  2  1  2  3  3 <1 <1 <1 <1 <1  2  2  2 <1
T WIND DIR        W  W  W  W  W  W NW NW NW NW NW  W  W  W  W  W  W NW NW NW NW
T WIND SPD        9 27 32 26 18 25 31 21 17 20 18 11  9  3  5  5  5 18 17 12 11
DISPERSION                   GD GD FR FR             PR VP PR PR             VP
ADI              10 52 73 51 16 22 34 15 32 53 60 32  4  2  2  3  5 38 46 31  5
MAX LVORI         4  3  1  1  2  2  1  2  1  1  1  1  2  3  5  5  4  1  1  1  2
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            27.70 27.63 27.70 27.77 27.86 27.82 27.82 27.83 27.87 27.94


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      44      40      48      26      39      31      43
TEMP          37 34 44 42 43 44 44 33 29 26 38 34 33 32 41 40
DEWPT         24 24 26 30 37 41 31 18 15 15 14 15 19 28 35 31
RH            59 66 49 62 79 89 60 53 55 62 37 45 56 85 79 70
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC SC SC B2 B2 B1 SC SC SC SC SC B1 B2 B2 B1
POP 12HR            5       5      40      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