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

NCZ018-022100-
RAWS 311941
36.22N  81.63W Elev. 3254 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          44          63          44          57
TEMP             43 49 55 57 52 50 47 46 44 53 60 61 53 50 47 46 44 52 55 55 47
DEWPT            38 40 39 39 38 38 38 37 36 37 39 39 39 39 38 38 39 39 37 36 35
MAX/MIN RH                   49          73          41          80          46
RH               82 71 55 51 59 63 71 71 73 54 46 44 59 66 71 73 82 61 51 49 63
WIND DIR          W  W  W  W  W  W NW NW NW  W  W  W  W  W  W NW NW NW NW NW  N
WIND SPD         12 14 17 16 14 17 16 16 14 11  9  8  5  4  5  5  8  9  9  6  4
WIND GUST           25 31 28 25 28 28 27 25                                    
CLOUDS           B1 SC FW FW FW FW FW SC SC FW FW CL FW FW SC SC SC SC SC SC SC
CLOUDS(%)        55 46 21 10  6 18 17 32 29 25 12  1  6 15 27 43 44 49 45 38 40
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                      5           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  3  3  4  4  4  3  3  4  4  4  4  4  4  4  4  4  4  4  4  4
MIX HGT          <1  1  2  2 <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 NW  W SW SW SW  W  W NW NW NW  N
T WIND SPD       24 29 35 31 19 28 31 28 25 23 21 10 10 12 13 13 19 20 20 14 12
DISPERSION                   GD GD GD GD             PR VP PR PR             VP
ADI              26 46 66 56 18 26 28 25 28 28 50 26  5  6  6  9 15 22 36 27  6
MAX LVORI         3  3  1  1  2  2  3  3  3  2  1  2  3  3  3  4  4  2  1  2  3
STABILITY         D  D  D  D  D  D  D  D  D  D  C  C  F  F  F  E  C  C  C  C  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            26.81 26.79 26.82 26.87 26.93 26.89 26.91 26.89 26.93 26.97


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       35      46      40      48      22      38      31      45
TEMP          38 36 45 43 42 43 41 30 25 22 36 32 33 36 43 39
DEWPT         29 24 30 34 36 39 28 17 13 12 11 15 18 27 35 33
RH            70 61 55 70 79 86 59 58 60 65 35 49 53 69 73 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

$$


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