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

VAZ024-220900-
RAWS 441631
37.63N  79.51W Elev. 865 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          36          17          40          24
TEMP                25 22 19 18 26 35 35 27 24 22 19 18 26 38 40 32 27 25 25 25
DEWPT               12 12 11 11 12 10  9 11 11 11 11 11 14 16 17 17 17 17 18 19
MIN/MAX RH                   75          32          74          38          78
RH                  57 65 70 73 55 35 33 50 57 62 70 73 60 40 39 53 65 71 74 78
WIND DIR            NW NW NW  N  N  S SE SE SE SE  N  N  S  S  S  S  S  W  W  W
WIND SPD             4  3  3  2  2  1  2  1  2  2  0  0  2  3  3  1  1  1  1  1
CLOUDS              SC SC FW CL CL CL CL FW FW FW FW CL CL FW CL FW FW FW SC B1
CLOUDS(%)           47 33  9  4  3  3  1 10  7  6  8  3  3  7  4  7 11 21 42 54
VSBY                10 10 10 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               
HAINES               3  3  4  4  4  4  4  4  4  4  4  4  4  4  4  4            
MIX HGT              1  1  1  1  3  4  3 <1 <1 <1 <1 <1  2  3  2 <1            
T WIND DIR          NW NW NW NW  N NW NW SE SE  E SE SE  S  S  S  S            
T WIND SPD          12 10  8  6  3  2  2  2  3  3  2  2  6  8  9  4            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  6  5  4 10 12 10  9  1  2  2  1  2 19 29 26  2            
MAX LVORI            3  3  3  3  2  2  2  2  3  3  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            28.75 28.79 28.86 28.85 28.92 28.94 28.94 28.86            


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       52      29      47      31      49      34      50      37      52
TEMP          49 42 33 30 46 41 34 32 47 42 36 34 48 44 40 38 50 47
DEWPT         32 32 31 30 36 34 32 32 36 35 33 34 39 37 36 35 39 39
RH            52 67 92100 68 76 92100 65 76 89100 71 76 85 89 66 74
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 SC SC SC B1 B1 B2 B1 B1 SC B1 B1 B2 B2 B2 B2 B2 B2
POP 12HR            0       5      10      20      20      20      40      40      40
RAIN SHWRS                      IS IS IS IS    IS SC SC SC SC SC SC
SNOWSHWRS                          IS IS       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