National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EST Thu Dec 25 2025

NCZ006-260900-
RAWS 310801
36.37N  79.29W Elev. 580 ft
131 AM EST Thu Dec 25 2025

Date           12/24/25      Thu 12/25/25            Fri 12/26/25            Sat
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                 43          69          41          49          44
TEMP                      45 47 54 66 68 60 56 52 46 42 44 46 49 45 44 45 45 47
DEWPT                     34 39 47 53 55 55 54 49 40 35 34 30 30 33 36 40 44 46
MIN/MAX RH                   78          60          93          46          98
RH                        65 74 77 63 63 84 93 89 79 76 68 53 48 62 73 82 96 96
WIND DIR                   S  S SW SW  W NW  N NE NE NE  E  E SE SE  S SW  W  W
WIND SPD                   2  3  6  8  6  2  2  4  5  4  4  3  3  1  2  2  3  3
CLOUDS                    B2 OV B1 B1 SC SC B1 B1 B1 B2 OV OV B2 OV B2 B1 SC SC
CLOUDS(%)                 86 88 56 59 47 45 61 62 63 77 94 92 85 89 80 66 29 38
VSBY                      10 10 10 10 10 10 10 10 10 10 10 10 10  8  0  1  2   
POP 12HR                     20          30          10          20          20
RAIN                       S  C                             S  S        S  S   
MIX HGT                   <1 <1  2  2  2 <1 <1  1  1  2  2  2  1  1            
T WIND DIR                 S  S SW SW  W  W  N NE NE NE  E  E SE  S            
T WIND SPD                 6  6 13 13 12  4  6 18 12 11  9  4  5  6            
DISPERSION                VP             VP VP VP PR             VP VP VP VP   
ADI                        3  8 25 36 33  2  3 12  8 26 16  9 11  3            
MAX LVORI                  3  3  3  1  1  5  6  5  4  3  2  2  2  3            
STABILITY                  F  D  D  C  C  F  F  E  E  C  D  C  C  F            
CEILING                    7700   900  None  None 19200  9900  3000  2700      
STA PRES                  29.53 29.43 29.33 29.42 29.51 29.54 29.44            


Date           12/27Sun 12/28/25Mon 12/29/25Tue 12/30/25Wed 12/31/25
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       69      42      60      47      59      23      41      22      46
TEMP          69 54 45 42 56 54 53 52 54 39 28 24 39 33 25 23 44 39
DEWPT         50 47 43 41 45 48 50 49 33 18 11 10  9  9 11 12 14 16
RH            51 77 93 96 66 80 89 89 45 42 48 54 28 36 55 62 29 39
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC B1 B2 OV B2 B2 B2 B1 B1 B1 SC FW FW SC SC FW SC
POP 12HR            0       5       5      30      20       5       0       0       5
RAIN                             S  C  S  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