
A winter storm with snow will continuing impacting primarily the southern portion of the region through Saturday night. Dangerously cold wind chills will conclude the event Saturday night and early Sunday. Click here for more details. Read More >
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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
931 PM EST Sat Jan 31 2026
NCZ001-010900-
RAWS 310141
36.40N 81.29W Elev. 3009 ft
931 PM EST Sat Jan 31 2026
Date 01/31/26 Sun 02/01/26 Mon 02/02/26 Tue
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 4 17 7 31 19
TEMP 7 5 4 4 8 14 17 14 12 11 9 8 20 29 30 23 21 20 23 22
DEWPT 1 -1 -1 -2 2 4 5 4 3 2 2 1 7 10 13 14 15 17 19 19
MIN/MAX RH 79 58 76 44 88
RH 76 76 79 75 76 64 58 64 66 66 72 72 56 44 49 68 77 88 84 88
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW W W W W W W W
WIND SPD 21 23 25 25 23 20 17 16 14 12 10 9 6 6 6 5 5 5 5 5
WIND GUST 35 39 40 41 35 33 29 28 26 23 20
CLOUDS OV B1 SC FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC
CLOUDS(%) 89 59 41 22 14 16 12 10 14 15 15 11 11 24 28 31 26 28 42 50
VSBY 4 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 0 0 0 0
SNOW
Obvis BS BS
MIX HGT 1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 <1 3 3 <1
T WIND DIR N NW NW NW NW NW NW NW NW NW NW NW NW W W W
T WIND SPD 33 35 32 32 36 31 28 19 16 13 12 11 12 8 9 10
DISPERSION GD GD GD GD GD FR FR PR PR PR PR
ADI 37 32 29 35 53 53 46 18 14 12 8 9 15 28 30 5
MAX LVORI 3 3 3 3 3 1 1 2 3 3 3 3 2 2 1 3
STABILITY D D D D D D D D D D E C B B B F
CEILING None None None None None None None None
STA PRES 27.01 27.09 27.10 27.15 27.17 27.21 27.19
Date 02/03Wed 02/04/26Thu 02/05/26Fri 02/06/26Sat 02/07/26
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 38 30 35 16 29 18 37 22 31
TEMP 37 33 33 31 34 30 22 16 28 25 20 21 36 34 31 23 30 27
DEWPT 26 27 31 30 29 24 17 12 12 13 12 12 22 24 24 19 15 14
RH 64 78 92 96 82 78 81 84 50 60 71 68 56 66 75 84 53 57
WIND SPD <15 <15 <15 <15 <15 <15 <15 15> 15>
AVG CLOUDS B1 B2 B2 B2 B2 B2 B1 SC SC FW SC B1 SC SC SC SC SC SC
POP 12HR 5 70 40 20 0 5 10 20 0
RAIN C L C C
SNOW C L C C S 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