
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
1231 AM EST Sat Jan 31 2026
NCZ001-010900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1231 AM EST Sat Jan 31 2026
Date 01/30/26 Sat 01/31/26 Sun 02/01/26 Mon
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 10 1 13 7
TEMP 14 11 9 8 10 7 6 5 3 2 2 3 9 13 11 10 9 8 8
DEWPT 12 11 9 8 9 4 -1 -2 -4 -4 -5 -3 1 2 3 2 1 1 0
MIN/MAX RH 100 71 78 62 71
RH 92100100100 96 87 72 72 72 75 72 75 69 61 69 69 69 72 69
WIND DIR SE E NE NE N N NW NW NW NW NW NW NW NW NW NW NW W W
WIND SPD 10 11 13 12 12 19 33 37 40 42 43 35 28 27 29 26 21 19 18
CLOUDS OV OV OV OV OV OV OV OV B2 B1 B1 SC SC SC FW FW FW FW FW
CLOUDS(%) 100100100100100100 95 88 72 67 57 44 37 29 24 16 24 21 25
VSBY 3 2 1 1 1 2 4 10 8 8 10 10 10 10 10
POP 12HR 90 80 20 0 0
SNOW C L D L L C S S
SNOWSHWRS IS IS
MIX HGT <1 <1 1 1 2 1 1 1 <1 <1 <1 1 1 1 <1
T WIND DIR SE E NE NE N N N NW NW NW NW NW NW NW NW
T WIND SPD 4 5 9 12 17 25 35 37 37 40 34 33 35 35 18
DISPERSION FR FR GD GD GD GD GD GD GD GD
ADI 4 5 12 20 31 40 32 34 34 36 38 45 54 52 16
MAX LVORI 7 7 5 5 4 3 3 3 3 3 3 3 1 1 3
STABILITY D D D D D D D D D D D D D D D
CEILING 100 100 500 700 0 None None None
STA PRES 26.55 26.53 26.48 26.49 26.50 26.56 26.59
Date 02/02Tue 02/03/26Wed 02/04/26Thu 02/05/26Fri 02/06/26
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 26 19 36 29 32 21 22 17 32
TEMP 24 21 20 22 33 30 31 32 29 29 27 22 22 20 19 20 29 28
DEWPT 9 12 15 17 23 24 28 29 29 26 22 18 16 14 13 13 19 21
RH 52 68 81 81 66 78 88 88100 88 81 84 77 77 77 74 66 75
WIND SPD <15 15> <15 <15 <15 15> 15> 15> 15>
AVG CLOUDS FW SC SC B1 B1 B2 B2 B2 OV OV B2 B2 B1 B1 SC SC SC SC
POP 12HR 0 0 5 40 50 30 10 5 10
SNOW S 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