National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Sun Jan 18 2026

NCZ006-190900-
RAWS 310801
36.37N  79.29W Elev. 580 ft
701 PM EST Sun Jan 18 2026

Date           01/18/26      Mon 01/19/26            Tue 01/20/26            Wed
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                 23          45          18          38          15
TEMP                27 25 24 23 35 44 45 33 28 25 21 19 28 36 38 29 22 19 17 16
DEWPT               23 20 18 18 18 18 15 14 11  8  7  5  4  0  1  5  5  4  4  5
MIN/MAX RH                   96          29          56          19          61
RH                  85 81 77 81 49 35 29 45 48 48 54 54 35 21 20 35 47 51 56 61
WIND DIR             W SW SW SW SW  W  W  W NW NW NW NW NW  W  W NW  N SE  S  S
WIND SPD             2  1  2  3  5 10  9  4  3  2  2  2  4  5  3  1  1  1  1  1
CLOUDS              CL FW FW FW CL CL FW CL FW FW FW FW CL CL CL CL CL CL CL FW
CLOUDS(%)            3  8  9  7  4  5  6  5 11 25 18 13  4  5  4  2  3  5  5  8
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10   
POP 12HR                      0           0           0           0           0
MIX HGT             <1 <1 <1 <1  2  4  4 <1 <1 <1 <1 <1  3  4  5 <1            
T WIND DIR          SW SW SW SW  W  W  W  W NW NW NW NW  W NW NW NW            
T WIND SPD           3  4  4  5 18 16 18  5 13 10  8  4 14 17 14  2            
DISPERSION          VP VP VP             VP VP VP VP             VP VP VP VP   
ADI                  2  2  2  6 53 59 69  3  6  5  4  5 46 66 84  1            
MAX LVORI            3  4  4  4  1  1  1  2  2  2  2  2  1  1  1  2            
STABILITY            G  G  G  B  C  C  C  G  G  G  G  B  C  C  B  G            
CEILING              None  None  None  None  None  None  None  None  None      
STA PRES            29.36 29.36 29.41 29.44 29.57 29.63 29.72 29.77            


Date           01/21Thu 01/22/26Fri 01/23/26Sat 01/24/26Sun 01/25/26
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       44      28      52      20      47      27      46      25      38
TEMP          41 36 31 32 49 39 27 21 44 38 32 28 43 39 33 26 35 29
DEWPT          9 17 22 25 30 24 16 14 16 20 20 22 28 27 25 20 19 15
RH            26 45 69 75 48 54 63 74 32 48 61 78 55 62 72 78 52 55
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW SC B1 B2 B1 SC FW FW SC SC SC B1 B1 B1 B1 B1 B1 B1
POP 12HR            0      20      20       5       5      10      40      40      50
RAIN                       S                       C  C  C  C      
SNOW                    S                             C     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