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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EST Sat Dec 21 2024

VAZ020-220900-
RAWS 441801
37.99N  79.76W Elev. 2160 ft
731 PM EST Sat Dec 21 2024

Date           12/21/24      Sun 12/22/24            Mon 12/23/24            Tue
UTC 3hrly     21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EST 3hrly     16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07

MIN/MAX TEMP                 18          33          20          37          28
TEMP                22 22 21 18 22 31 31 25 24 23 21 20 27 36 35 29 28 28 28 31
DEWPT                8  8  8  7  7  5  4  6  7  7  8  9 11 12 13 14 14 16 18 21
MIN/MAX RH                   64          30          62          35          66
RH                  54 54 56 61 52 32 31 44 47 50 56 62 50 36 40 53 55 60 66 66
WIND DIR            NW NW NW NW NW SW  S  S  S  S  S  S  S  S  S  S SW  W  W  W
WIND SPD             6  5  4  3  3  2  3  1  1  2  1  1  2  2  2  2  2  2  2  2
CLOUDS              B1 SC FW FW CL CL CL FW FW FW CL CL CL FW CL FW FW SC SC B1
CLOUDS(%)           60 41 17  8  5  3  0  9  8  9  4  3  4 11  2 10 13 32 50 68
VSBY                10 10 10 10 10 10 10 10  8 10 10 10 10 10 10 10            
POP 12HR                      0           0           0           0           5
LAL                  1  1  1  1  1  1  1  1  1  1  1  1  1  1  1               
HAINES               3  3  4  4  4  4  3  3  4  4  4  4  4  4  4  4            
MIX HGT              2  2  2 <1  2  3  2 <1 <1 <1 <1 <1  1  2  2 <1            
T WIND DIR          NW NW NW NW NW  W  W SE SE SE  S  S  S  S  S  S            
T WIND SPD          14 11  9  6  3  2  2  2  2  2  3  2  6  6  9  8            
DISPERSION          PR PR VP             VP VP VP VP             VP VP VP VP   
ADI                  7  5  4  7  8  8  7  1  1  1  2  2 12 16 18  4            
MAX LVORI            2  2  3  3  2  2  2  2  2  2  3  3  2  2  2  2            
STABILITY            F  G  G  B  B  B  B  G  G  G  G  B  B  B  B  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            28.03 28.07 28.13 28.13 28.18 28.20 28.20 28.13            


Date           12/24Wed 12/25/24Thu 12/26/24Fri 12/27/24Sat 12/28/24
UTC 6hrly     18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly     13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19

MAX/MIN TEMP       46      31      45      33      47      35      47      39      49
TEMP          46 38 34 31 44 38 35 33 47 40 38 36 47 41 41 39 49 44
DEWPT         31 29 29 29 33 30 29 31 34 32 32 33 36 33 33 33 37 35
RH            55 70 82 92 65 73 78 92 60 73 79 89 65 73 73 79 63 70
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC B1 B1 B1 B2 B1 B1 SC B1 B1 B2 B2 B2 B2 B2 B1
POP 12HR            0       5      10      20      10      20      40      40      30
RAIN SHWRS                         IS          IS SC SC SC SC SC SC
SNOWSHWRS                          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