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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Wed Jan 28 2026
VAZ024-290900-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 AM EST Wed Jan 28 2026
Date 01/27/26 Wed 01/28/26 Thu 01/29/26 Fri
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 9 30 7 31 10
TEMP 12 10 19 28 30 23 16 13 9 7 19 28 31 21 16 14 12 11
DEWPT 4 2 8 11 11 8 5 2 1 1 6 8 8 6 5 4 5 6
MIN/MAX RH 74 45 74 37 79
RH 70 69 61 48 44 52 61 61 69 76 56 42 37 52 61 64 73 80
WIND DIR W W W W W W W W W W W W W W NW NW N N
WIND SPD 2 2 3 6 6 3 4 4 3 2 3 4 4 2 1 1 1 1
WIND GUST 18 17 16 17 14
CLOUDS FW SC FW SC SC FW FW CL FW FW FW SC SC SC SC B2 B2 B2
CLOUDS(%) 17 42 18 34 39 25 6 5 7 10 9 30 30 31 47 71 77 86
VSBY 10 10 10 10 10 10 10 10 10 10 10 8 10
POP 12HR 5 0 0 0 5
SNOW S
MIX HGT <1 <1 2 4 5 <1 1 <1 <1 <1 3 3 3 <1 <1 <1 <1 <1
T WIND DIR NW NW W W W W W NW NW W W W W W NW NW NW N
T WIND SPD 11 3 12 14 20 13 11 12 10 4 12 13 14 4 4 2 2 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 5 4 35 65110 6 5 6 5 5 40 58 62 2 2 1 1 3
MAX LVORI 3 3 1 1 1 2 3 3 3 3 1 1 1 2 3 3 3 4
STABILITY G B B B B G F F G B B B B G F F F C
CEILING None None None None None None None 7200
STA PRES 28.63 28.53 28.53 28.57 28.63 28.60 28.64 28.64
Date 01/30Sat 01/31/26Sun 02/01/26Mon 02/02/26Tue 02/03/26
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 27 10 20 9 25 7 34 12 37
TEMP 25 22 16 10 18 16 11 10 23 18 11 9 31 24 17 13 35 27
DEWPT 11 13 10 5 6 5 2 1 7 4 1 2 13 12 9 9 19 16
RH 55 68 77 80 59 61 66 66 50 53 63 72 47 60 70 84 52 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV OV OV OV OV B2 B2 B1 SC SC FW SC SC SC SC SC SC
POP 12HR 30 50 50 40 10 5 5 5 5
SNOW S C 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