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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EST Tue Jan 20 2026

VAZ018-210900-
RAWS 444002
37.56N  80.18W Elev. 2702 ft
501 PM EST Tue Jan 20 2026

Date           01/20/26      Wed 01/21/26            Thu 01/22/26            Fri
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                 16          45          34          48          28
TEMP             20 18 17 16 17 28 43 44 36 36 37 36 37 43 48 46 37 34 31 30 29
DEWPT            -7 -6 -5 -3 -1  2 11 16 16 19 28 33 32 30 27 24 23 22 21 22 20
MIN/MAX RH                   44          26          89          41          70
RH               29 33 36 42 44 32 27 32 43 50 70 89 82 60 44 42 56 61 66 72 69
WIND DIR          W  W  W  W SW  S  S  S SW SW SW  W  W  W  W  W  W  W  W NW NW
WIND SPD          2  1  1  1  2  3  6  6  5  5  5  6  6  9  9  6  3  2  2  2  3
WIND GUST        13             14 20 21 20 23 24 27 27 29 27 23 14 13 13 14 17
CLOUDS           FW CL FW FW FW FW SC SC SC B1 B1 B1 B1 SC FW FW SC SC SC B1 B2
CLOUDS(%)         6  5  7  8  6  6 37 33 50 53 65 66 51 27 20 18 38 38 50 64 77
VSBY             10 10 10 10 10 10 10 10  6  7  7  7 10 10 10 10 10 10  6  6  6
POP 12HR                      0          10          20           5          20
RAIN                                         S  S  S                           
SNOW                                      S                             S  S  C
MIX HGT          <1 <1 <1 <1 <1  1  3  2 <1 <1  1  1  1  2  3  3 <1            
T WIND DIR        W  W SW  S  S  S  S SW SW SW SW  W  W  W  W  W  W            
T WIND SPD       17  8  3  3  3  9 17 17  9  8  6  6 24 18 18 18 10            
DISPERSION       VP VP VP VP             PR PR PR PR             VP VP VP VP   
ADI               8  4  2  2  4 14 51 43  6  5  5  5 32 53 63 61  5            
MAX LVORI         2  2  2  2  2  2  1  1  2  2  3  6  3  1  1  1  3            
STABILITY         G  G  G  G  B  B  C  C  E  E  E  E  D  C  C  C  G            
CEILING              None  None  None  None  None  1500  None  None  None      
STA PRES            28.09 28.06 28.02 27.92 27.90 27.86 27.92 27.91            


Date           01/23Sat 01/24/26Sun 01/25/26Mon 01/26/26Tue 01/27/26
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       38      17      23      13      28      12      26       6      31
TEMP          37 27 20 17 23 17 14 14 24 23 17 12 25 17 11  7 26 22
DEWPT         18  9  4  1  6  6  7  9 14 14 10  6  9  5  1  0  9  7
RH            46 46 49 49 47 61 73 80 65 68 73 76 50 58 63 72 48 52
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B1 B2 B2 OV OV OV B2 B2 B2 B1 B1 SC SC SC SC SC
POP 12HR           30      40      70      90      70      40      10       5       5
SNOW           C  S  S  C  C  L  D  D  L  C  C  C                  

$$


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

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