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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
732 AM EST Wed Jan 28 2026
VAZ020-282100-
RAWS 441801
37.99N 79.76W Elev. 2160 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 23 7 26 9 25
TEMP 13 22 21 16 13 10 9 7 15 24 25 16 12 11 11 9 16 22 23 19
DEWPT 2 5 4 3 0 -2 -2 -2 1 3 3 2 1 1 1 2 4 7 8 9
MAX/MIN RH 45 67 37 72 50
RH 61 47 47 56 55 57 60 66 53 39 38 53 60 63 63 72 58 52 52 64
WIND DIR W W W W W NW W W W W W W NW NW NW NW W SW W N
WIND SPD 2 3 4 4 4 5 4 3 3 2 2 2 2 2 2 2 2 2 2 2
WIND GUST 14 14 16 18 16
CLOUDS FW SC SC SC FW FW FW FW FW FW FW FW SC B1 B2 B2 OV OV OV OV
CLOUDS(%) 10 43 31 28 10 9 15 19 15 22 17 25 40 61 71 81 88 92 94 91
VSBY 10 10 10 10 10 10 10 10 10 7 10
POP 12HR 5 0 0 10 30
SNOW S S C C C
MIX HGT 2 3 4 1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 <1 2 3 <1
T WIND DIR W W W W W NW NW W W W W W NW W NW NW NW W W N
T WIND SPD 13 17 21 21 14 19 13 9 16 16 17 13 6 3 2 3 5 6 6 3
DISPERSION VP VP PR VP VP VP VP VP VP
ADI 29 66 93 10 7 9 6 10 40 60 59 6 3 2 1 3 7 20 21 2
MAX LVORI 2 1 1 2 3 2 3 3 1 1 1 2 3 3 3 3 3 2 2 3
STABILITY B B B F F F F B B B B G G F F C C C C F
CEILING None None None None None None None 6400 2000 1200
STA PRES 27.89 27.80 27.80 27.82 27.88 27.87 27.91 27.90 27.92 27.87
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 8 16 7 19 4 30 10 33
TEMP 13 8 15 11 9 7 18 14 10 7 27 20 14 12 31 25
DEWPT 5 1 2 0 -2 -3 1 1 -2 -2 8 8 6 7 15 12
RH 70 72 55 60 60 63 46 55 57 66 44 59 70 80 51 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV B2 B2 B2 B2 B1 SC SC SC SC SC SC B1 SC SC
POP 12HR 50 50 30 10 5 10 5 5
SNOW C C 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