
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
203 PM EST Sat Jan 31 2026
VAZ046-010900-
RAWS 441101
37.39N 78.80W Elev. 804 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 10 30 12 37 18
TEMP 19 18 17 14 12 10 19 27 29 23 19 16 14 12 25 35 37 28 26 23 22 20
DEWPT 7 8 7 4 3 2 6 8 8 8 5 4 4 4 10 13 15 14 15 15 15 15
MIN/MAX RH 70 39 69 38 80
RH 59 64 64 64 66 69 56 44 40 52 54 58 64 70 52 40 40 55 62 71 74 81
WIND DIR NE N N N N NW NW NW NW W W W W W W W W SW SW W W W
WIND SPD 10 9 10 10 10 9 10 10 10 8 6 6 5 5 5 5 5 4 4 4 4 4
WIND GUST 21 20 23 23 21 19 21 21 21 18 17 17
CLOUDS B2 B2 B2 B1 SC FW FW FW FW CL CL CL CL FW CL CL FW FW FW FW FW SC
CLOUDS(%) 83 72 78 54 41 21 15 7 10 4 3 3 4 6 4 5 6 12 13 11 19 36
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 0 0 0
SNOW C S
MIX HGT 3 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 <1 2 2 <1
T WIND DIR NE N N N N N NW NW NW NW NW W W W W W SW S
T WIND SPD 20 23 27 27 23 14 23 21 20 10 8 6 9 6 5 4 5 3
DISPERSION PR FR FR FR PR PR PR PR VP VP VP VP
ADI 46 21 25 25 21 11 51 73 65 7 4 3 4 7 7 12 14 2
MAX LVORI 1 2 2 2 3 3 1 1 1 2 3 3 3 3 2 2 2 3
STABILITY D D D D D C C C C E F F F B B B B F
CEILING 6000 None None None None None None None None
STA PRES 29.29 29.24 29.26 29.24 29.33 29.38 29.44 29.40
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 41 30 37 18 37 18 43 24 37
TEMP 40 36 33 31 35 32 24 19 34 29 20 21 38 38 34 25 36 30
DEWPT 25 27 29 28 28 23 17 13 15 15 12 12 20 24 24 17 14 13
RH 55 69 85 88 75 69 74 77 45 55 71 68 48 57 66 71 40 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B2 B2 B2 B2 B2 B1 SC SC FW FW SC B1 B1 SC SC FW FW
POP 12HR 0 40 40 20 5 5 20 5 0
RAIN C C
SNOW C 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