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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 PM EST Tue Jan 27 2026
VAZ018-280900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
331 PM EST Tue Jan 27 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 27 10 28 12
TEMP 30 24 21 17 12 10 17 25 26 19 16 14 12 11 18 26 27 20 14 14 14 14
DEWPT 12 11 9 8 5 2 6 9 8 6 5 4 3 3 5 8 7 6 5 5 6 6
MIN/MAX RH 75 45 68 41 72
RH 46 57 59 67 73 69 61 50 46 56 61 64 66 69 56 46 42 54 67 67 70 70
WIND DIR W W W NW NW W W W W W NW NW NW W W W W W NW NW NW NW
WIND SPD 10 10 11 10 6 2 4 6 8 6 9 10 9 6 6 6 6 2 2 2 2 2
WIND GUST 33 35 39 35 24 14 19 23 26 27 32 35 32 26 24 20 19 14
CLOUDS FW B1 B2 B1 SC SC SC SC SC FW FW FW SC SC SC SC SC FW SC B1 B2 B2
CLOUDS(%) 22 55 72 62 34 39 27 33 42 19 19 25 36 32 28 30 35 24 35 57 77 70
VSBY 10 10 10 10 10 10 10 9 10 10 9 10 10 10 9 9 10
POP 12HR 10 0 5 0 5
FLURRIES SC SC
SNOW S
MIX HGT 3 1 2 1 <1 <1 2 3 3 1 1 1 1 <1 2 3 3 <1
T WIND DIR W W NW NW NW NW W W W W NW NW NW NW W W W W
T WIND SPD 29 25 37 33 20 16 14 17 23 14 27 31 23 16 20 16 16 16
DISPERSION FR FR FR PR PR PR FR PR VP VP VP VP
ADI 102 23 42 37 9 19 41 67 94 7 19 21 15 17 56 58 61 7
MAX LVORI 1 2 1 3 3 3 1 1 1 3 2 2 3 3 1 1 1 2
STABILITY C D D D F B B B B F E E E B B B B G
CEILING 2400 None None None None None None None None
STA PRES 27.79 27.83 27.86 27.74 27.76 27.80 27.85 27.84
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 8 19 6 21 8 32 15 33
TEMP 26 19 13 9 18 12 8 7 19 17 12 9 30 24 19 16 31 25
DEWPT 12 10 7 1 5 2 -1 -2 4 3 2 1 11 11 11 10 16 14
RH 55 67 76 69 56 63 66 66 51 53 63 69 44 57 70 77 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B1 B1 B1 B1 B1 B1 SC FW SC SC SC SC B1 B1 SC
POP 12HR 40 40 40 30 10 5 5 5 5
SNOW S C C C C C C 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