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

NCZ005-022100-
RAWS 310540
36.38N  79.70W Elev. 858 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                 69          46          70          46          65
TEMP             44 57 65 67 59 57 53 50 46 58 67 67 56 53 50 48 46 58 63 63 53
DEWPT            39 40 42 42 42 41 40 40 38 38 37 37 40 42 44 43 42 44 40 38 36
MAX/MIN RH                   39          74          29          86          37
RH               82 53 43 40 53 55 61 68 73 47 33 33 55 66 80 83 86 59 43 39 52
WIND DIR         SW SW SW SW  W  W  W  W  W NW  W SW  S  S SW SW  W NW  N  N  N
WIND SPD          5 10 14 13 10 10  9  6  5  6  6  5  4  4  5  4  4  5  6  6  4
WIND GUST              27 26                                                   
CLOUDS           CL SC SC FW SC FW FW FW FW CL CL CL CL FW FW SC SC SC SC SC SC
CLOUDS(%)         3 35 34 12 29  9  8 20 11  3  4  2  4  7 25 35 35 36 33 36 38
VSBY             10 10 10 10 10 10 10 10 10 10 10 10 10                        
POP 12HR                      0           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            3  4  4  4  4  4  4  4  4  4  4  4  4  3  3  3  4  4  4  3  4
MIX HGT          <1  1  3  3 <1 <1 <1 <1 <1  2  3  3 <1 <1 <1 <1 <1 <1  2  3 <1
T WIND DIR       SW  W  W  W SW  W  W  W  W NW NW  W  S  S SW SW  W  W  N  N  N
T WIND SPD        5 20 20 25 20 10  9  6  5 10 10  4  4  4  5  4  4 12 10 13 13
DISPERSION                   FR FR PR PR             VP VP PR VP             VP
ADI               4 39 47 56 14  7  6  3  4 22 31 14  2  2  3  2  3 14 26 40  6
MAX LVORI         4  1  1  1  2  2  3  3  3  2  1  2  3  3  4  5  6  2  2  1  2
STABILITY         C  C  D  D  E  E  E  F  C  C  C  C  F  F  F  F  C  C  C  C  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            29.24 29.16 29.21 29.29 29.36 29.30 29.30 29.30 29.35 29.41


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       38      55      43      59      29      48      34      53
TEMP          43 38 54 47 46 47 56 42 33 29 45 40 36 39 49 45
DEWPT         29 28 30 39 42 44 42 24 18 18 16 19 21 32 40 39
RH            57 67 40 74 86 89 59 48 53 63 31 42 54 76 71 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC B1 B2 B2 B1 SC SC SC SC SC SC B1 B1 B1
POP 12HR            0       5      20      30       5       5      30      40
RAIN SHWRS                   IS 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