National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 PM EST Sat Dec 27 2025

NCZ006-272100-
RAWS 310801
36.37N  79.29W Elev. 580 ft
1231 PM EST Sat Dec 27 2025

Date             Sat 12/27/25            Sun 12/28/25            Mon 12/29/25
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                 66          37          54          48          68
TEMP                   65 63 51 45 42 40 38 42 49 54 50 49 53 58 58 66 66 60 48
DEWPT                  48 45 43 39 36 34 34 37 38 41 44 49 53 57 56 55 47 35 27
MAX/MIN RH                   50          86          61          99          39
RH                     54 52 74 79 79 79 85 82 66 61 80100100 96 93 68 50 39 44
WIND DIR                N NE  E  E NE NE  E SE  S  S  S SW SW SW SW SW  W  W  W
WIND SPD                6  6  8  2  2  1  1  2  3  4  3  5  6 10 11 13 13 13 10
WIND GUST                                                  17 21 23 25 25 25 20
CLOUDS                 FW FW FW SC B1 B1 B2 OV OV OV OV OV OV OV OV B2 B1 B1 FW
CLOUDS(%)              14 20 21 33 52 54 78 90 92 89 90 91 96 95 92 79 60 58 10
VSBY                   10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           5          10          20          40
RAIN                                                        S  S  C  C  C  C   
MIX HGT                 3  2 <1 <1 <1 <1  1  1  1  1 <1  1  1  1  2  3  4  5  3
T WIND DIR             NE NE  E  E  E  E SE SE  S  S  S  S  S SW SW SW  W  W  W
T WIND SPD              6  8 12 10  9  8  6  4  5  6 11  9 10 10 17 19 28 27 27
DISPERSION                   PR VP VP VP             VP PR PR FR             FR
ADI                    22 22  6  5  4  4 10  6 10 10  5  6  7 12 31 48 80 85 19
MAX LVORI               2  2  3  4  4  5  4  4  3  2  4  8  6  6  4  1  1  1  2
STABILITY               C  C  G  G  F  F  C  C  C  D  F  E  E  D  D  D  D  D  E
CEILING                    None  None  1400  1400   600   500   400  1000  None
STA PRES                  29.40 29.50 29.51 29.52 29.41 29.29 29.11 29.04 29.10


Date          Tue 12/30/25Wed 12/31/25Thu 01/01/26Fri 01/02/26
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       26      42      23      49      28      51      22      41
TEMP          34 27 40 34 26 24 46 41 33 29 48 39 28 22 38 32
DEWPT         17 14 11 10  9 11 14 18 19 21 22 20 15  9  6  6
RH            49 57 30 36 48 57 27 39 56 72 35 46 58 57 26 33
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW FW FW SC B1 B1 B1 SC SC SC SC
POP 12HR            0       0       0       0       5       0       5       5

$$


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