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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
732 AM EST Wed Jan 28 2026
NCZ018-282100-
RAWS 311941
36.22N 81.63W Elev. 3254 ft
732 AM EST Wed Jan 28 2026
Date Wed 01/28/26 Thu 01/29/26 Fri 01/30/26
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 25 10 27 17 29
TEMP 17 24 24 19 16 13 11 10 16 25 27 19 18 18 18 17 22 27 26 23
DEWPT 10 11 9 9 6 4 4 4 5 6 7 7 8 8 9 10 12 13 15 16
MAX/MIN RH 51 74 41 74 57
RH 73 57 52 64 64 67 73 76 61 44 42 59 64 64 67 73 65 55 62 74
WIND DIR W W W W NW NW NW W W W W NW NW W W W S S S N
WIND SPD 10 13 17 16 20 19 13 9 6 6 5 2 2 1 2 2 3 4 4 3
WIND GUST 21 25 29 32 37 37 31 20 17
CLOUDS SC FW CL FW CL FW SC SC SC SC SC SC SC B1 B2 B2 OV OV OV OV
CLOUDS(%) 42 7 5 7 4 13 33 41 43 47 29 32 45 64 72 85 96 99100100
VSBY 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 30
SNOW C C C
MIX HGT 2 2 3 1 1 1 1 1 2 2 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR W W W W NW NW NW NW NW NW W NW NW NW W W S W W E
T WIND SPD 17 20 24 31 28 28 25 16 17 16 13 9 8 5 3 1 2 5 3 3
DISPERSION GD GD GD FR VP VP VP VP VP
ADI 38 43 53 28 26 32 28 23 36 47 38 4 4 3 2 1 5 14 7 3
MAX LVORI 3 1 1 2 2 3 3 3 1 1 1 3 3 3 3 3 3 2 3 3
STABILITY C D D D D D D C B B B G F F F B C D D D
CEILING None None None None None None None 7300 6700 1800
STA PRES 26.89 26.82 26.79 26.82 26.89 26.88 26.89 26.87 26.87 26.81
Date Sat 01/31/26Sun 02/01/26Mon 02/02/26Tue 02/03/26
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 12 14 3 15 6 27 13 33
TEMP 17 12 12 8 5 4 13 12 10 9 24 18 17 16 31 25
DEWPT 13 8 5 -1 -4 -3 1 2 1 2 9 11 9 12 18 18
RH 84 84 73 66 65 72 58 63 66 72 52 73 70 84 58 74
WIND SPD <15 <15 15> 15> 15> <15 <15 <15
AVG CLOUDS OV OV OV OV OV OV B1 SC SC SC SC SC SC SC SC SC
POP 12HR 60 60 30 20 10 10 10 5
SNOW C L L C C S
SNOWSHWRS IS
$$
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