
Another winter storm will impact much of the region Friday through Saturday night. For this one, only snow is expected. 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
531 PM EST Thu Jan 29 2026
NCZ001-300900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
531 PM EST Thu Jan 29 2026
Date 01/29/26 Fri 01/30/26 Sat 01/31/26 Sun
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 16 24 10 11 1
TEMP 18 17 19 18 18 19 22 23 21 20 17 14 11 11 10 11 8 6 4 3 2
DEWPT 5 6 7 10 12 15 18 19 18 17 14 12 10 9 8 5 2 -2 -4 -5 -6
MIN/MAX RH 80 68 96 73 80
RH 56 61 59 70 77 84 84 84 88 88 88 92 96 91 91 76 76 69 68 68 68
WIND DIR W W W W SW SW S SW S E E NE N N N NW NW NW NW NW NW
WIND SPD 6 5 5 5 5 5 4 5 6 8 10 12 14 14 14 21 34 39 42 44 46
CLOUDS B1 B1 B2 B2 OV OV OV OV OV B2 OV OV OV OV OV OV B2 B2 B2 B1 B1
CLOUDS(%) 51 61 77 85 92 93 93 93 90 86 89 91 91 93 93 90 87 82 75 67 54
VSBY 10 10 10 10 8 8 8 6 3 3 2 3 2 3 4 5 10
POP 12HR 10 70 80 80 30
SNOW S C C L L L D D D D L L C C
MIX HGT <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 1 1 2 2 2 1
T WIND DIR W W W W S S SW S S S SE NE NE N N N NW
T WIND SPD 4 4 2 1 2 6 8 5 3 3 3 5 10 11 17 26 34
DISPERSION PR PR PR PR PR PR FR FR GD GD GD GD
ADI 3 3 2 1 3 9 14 8 2 3 3 5 15 21 34 45 39
MAX LVORI 3 3 3 4 4 4 4 5 6 6 6 6 5 5 4 3 3
STABILITY E E E E D D D D E D D D D D D D D
CEILING 3700 2800 4600 1500 200 100 100 100 2300
STA PRES 26.68 26.65 26.65 26.59 26.58 26.53 26.54 26.49
Date 02/01Mon 02/02/26Tue 02/03/26Wed 02/04/26Thu 02/05/26
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 11 6 24 17 30 23 31 24 26
TEMP 9 10 8 8 22 18 19 19 27 25 24 24 29 28 28 25 25 24
DEWPT 1 2 0 -1 8 10 13 14 18 18 18 19 23 23 23 21 21 17
RH 69 69 69 66 54 70 77 80 68 74 77 81 78 81 81 84 84 74
WIND SPD 15> 15> <15 15> <15 <15 <15 <15 15>
AVG CLOUDS SC SC FW FW SC SC SC B1 B1 B1 B1 B1 B2 B2 B2 B2 B2 B2
POP 12HR 0 0 0 0 0 10 30 40 30
SNOW S 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