National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EST Sat Jan 17 2026

NCZ006-172100-
RAWS 310801
36.37N  79.29W Elev. 580 ft
501 AM EST Sat Jan 17 2026

Date             Sat 01/17/26            Sun 01/18/26            Mon 01/19/26
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                 52          32          40          20          45
TEMP             36 41 50 52 45 40 39 37 34 36 37 38 30 25 22 20 21 34 43 45 36
DEWPT            18 27 35 37 36 35 33 33 31 29 26 22 19 16 14 13 12 14 15 15 15
MAX/MIN RH                   46          93          52          73          29
RH               47 57 56 56 70 82 79 85 89 75 64 52 63 68 71 74 68 43 32 29 42
WIND DIR          S SW SW SW  W  W NW NW  N  N NW NW NW  W  W SW SW  W  W  W  W
WIND SPD          6  8  9  5  1  1  1  1  2  4  5  4  2  1  1  2  2  5  9  8  3
WIND GUST           19                                                         
CLOUDS           B2 B2 B2 B1 B1 B2 OV OV OV OV OV B1 FW CL FW FW FW CL CL CL FW
CLOUDS(%)        76 79 73 54 67 82 95 92 98 93 90 60 10  3  6  6  6  3  4  4  7
VSBY             10 10 10 10 10 10  8  6  2  4  8  7 10                        
POP 12HR                     20          50          50           5           0
RAIN                                C  C  C  C                                 
SNOW                                      C  C  C  C                           
MIX HGT          <1  1  3  3 <1 <1 <1 <1  1  2  3  3 <1 <1 <1 <1 <1  3  5  5 <1
T WIND DIR        S SW SW SW  S  S  S  S                                       
T WIND SPD        9 12 17  8  3  3  2  2                                       
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI              10 19 41 24  2  2  1  1  0  0  0  0  0  0  0  0  0  0  0  0  0
MAX LVORI         2  2  1  2  3  5  4  6  6  4  3  2  3  4  4  4  4  2  2  2  2
STABILITY         D  D  D  C  F  F  F  F  A  A  A  A  A  A  A  A  A  A  A  A  A
CEILING              2700 18800 20200  4100   600  None  None  None  None  None
STA PRES            29.44 29.46 29.47 29.41 29.37   0.0   0.0   0.0   0.0   0.0


Date          Tue 01/20/26Wed 01/21/26Thu 01/22/26Fri 01/23/26
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       18      36      16      47      27      52      27      46
TEMP          25 18 33 27 18 17 43 38 32 29 50 43 34 28 42 38
DEWPT         11  3 -2  2  1  2 10 16 18 20 28 29 27 22 21 24
RH            55 51 22 33 46 51 25 40 56 69 42 57 75 78 43 57
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC FW CL CL CL FW SC SC B1 B1 B1 SC SC SC SC
POP 12HR            0       0       0       0       5      20      20      10
RAIN                                         S  S  S         
SNOW                                                  S      

$$


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