
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 >
Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
203 PM EST Sat Jan 31 2026
NCZ019-010900-
RAWS 312001
36.23N 81.32W Elev. 2380 ft
203 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 8 23 11 37 20
TEMP 19 15 12 11 9 8 15 21 23 18 16 15 13 12 25 35 36 27 24 23 23 22
DEWPT 11 6 1 -1 -1 -1 2 6 6 5 4 3 3 2 8 11 15 16 16 17 18 19
MIN/MAX RH 73 46 66 36 87
RH 70 67 60 57 63 66 55 52 47 56 58 58 63 63 48 36 42 63 71 77 81 88
WIND DIR N N NW NW NW NW NW NW NW NW NW NW NW NW W W W W NW W NW NW
WIND SPD 10 17 19 19 18 18 14 13 13 12 10 8 5 4 2 2 3 2 2 2 2 2
WIND GUST 29 29 31 31 28 26
CLOUDS OV OV OV B1 FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW SC SC
CLOUDS(%) 94 94 91 57 17 9 8 8 7 8 9 15 11 9 9 19 21 33 16 18 27 43
VSBY 2 3 6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 0 0 0 0
SNOW C C
Obvis BS BS
MIX HGT 3 1 1 1 <1 1 2 2 2 <1 <1 <1 <1 <1 1 4 4 <1
T WIND DIR N N N NW NW NW NW NW NW NW NW NW NW NW NW W W W
T WIND SPD 20 27 29 33 28 26 31 26 25 17 13 12 11 9 9 6 8 10
DISPERSION GD GD GD GD FR FR PR PR VP VP VP VP
ADI 48 31 33 30 26 34 57 68 63 15 9 8 5 10 17 32 36 5
MAX LVORI 3 3 1 2 2 3 1 1 1 2 2 2 3 3 2 1 1 3
STABILITY D D D D D D D C C D E E F B B B B G
CEILING 4300 None None None None None None None None
STA PRES 27.80 27.75 27.84 27.85 27.90 27.92 27.96 27.93
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 42 34 40 21 36 22 45 26 39
TEMP 41 36 35 35 39 34 26 21 36 27 23 24 42 38 34 27 36 32
DEWPT 26 28 30 31 31 26 19 14 14 13 13 14 23 26 25 20 17 15
RH 55 72 82 85 73 72 74 74 40 55 65 65 46 62 69 74 45 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B2 B2 B2 B1 SC FW FW SC SC SC SC SC SC SC FW
POP 12HR 5 60 40 10 0 5 10 10 0
RAIN C L 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