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

NCZ001-220900-
RAWS 310141
36.40N  81.29W Elev. 3009 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                 14          34          17          35          23
TEMP                20 17 15 14 23 32 32 25 21 19 18 18 28 35 34 27 24 23 25 29
DEWPT               12 12 10  9  9  6 10 11 12 12 12 12 15 16 18 17 18 17 17 19
MIN/MAX RH                   83          33          81          45          77
RH                  71 80 80 80 54 33 39 55 68 74 77 77 58 45 51 65 77 77 71 66
WIND DIR             N  N  N  N  N  S SE  S  S  S  S  S  S  S  S  S SW  W  W NW
WIND SPD             8  6  4  4  3  2  4  2  3  2  1  1  2  5  5  2  2  2  3  5
WIND GUST           18                                                         
CLOUDS              SC FW CL CL CL CL CL FW CL CL CL CL CL FW CL CL CL CL FW SC
CLOUDS(%)           26 10  5  5  2  4  0 21  5  4  4  3  3  7  1  3  4  5 21 30
VSBY                10 10 10 10 10 10 10 10 10 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               4  4  4  4  4  4  4  4  4  4  4  4  4  4  4  4            
MIX HGT              1  1 <1 <1  1  2  2 <1 <1 <1 <1 <1 <1  2  1 <1            
T WIND DIR           N  N  N NW NW NW  W SE  S  S  S  S  S  S  S  S            
T WIND SPD          14 12  6  5  4  5  1  2  3  4  5  4  5  6  6  4            
DISPERSION          PR PR VP             VP VP VP VP             VP VP VP VP   
ADI                  7  6  3  6  8 18  3  1  2  2  3  5  7 13 11  2            
MAX LVORI            4  4  5  4  2  2  2  3  3  3  5  4  3  2  2  3            
STABILITY            F  F  F  B  B  B  B  G  G  G  G  B  B  C  C  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            27.36 27.39 27.44 27.44 27.50 27.52 27.53 27.48            


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       48      30      44      32      46      35      44      38      48
TEMP          48 37 33 31 44 38 35 32 44 40 36 35 42 41 38 38 47 45
DEWPT         30 31 30 31 36 34 34 32 39 37 36 35 39 37 36 36 40 39
RH            49 79 89100 73 85 96100 82 89100100 89 85 92 92 76 79
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC B1 B1 B1 B2 B2 B1 SC B1 B2 B2 B2 B2 B2 B2 B2
POP 12HR            5       5      20      30      20      30      50      50      40
RAIN SHWRS                   IS IS SC IS IS    SC SC SC SC SC SC SC
SNOWSHWRS                          SC 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