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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Sat Jan 17 2026
NCZ003-180900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
701 PM EST Sat Jan 17 2026
Date 01/17/26 Sun 01/18/26 Mon 01/19/26 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 30 35 20 42 18
TEMP 40 38 36 32 32 35 34 28 25 23 23 23 30 39 42 34 27 24 20 18
DEWPT 32 31 30 26 22 16 13 12 12 12 12 11 14 14 13 12 9 7 3 1
MIN/MAX RH 84 41 63 30 48
RH 73 76 79 78 66 45 41 50 57 62 62 59 51 35 30 39 46 47 47 46
WIND DIR NW NW NW NW NW NW NW NW W W W W W W W W NW NW NW NW
WIND SPD 3 4 5 5 5 5 5 4 3 4 5 5 6 9 10 10 9 8 6 5
WIND GUST 19 20
CLOUDS OV OV OV OV OV B2 FW CL CL FW FW CL CL FW CL FW SC B1 SC FW
CLOUDS(%) 89 97 99 92 89 77 18 5 4 6 7 5 4 6 3 11 38 59 45 8
VSBY 10 10 2 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 50 30 0 0 0
RAIN S C C
SNOW C C
MIX HGT <1 <1 1 1 2 3 4 2 <1 <1 <1 <1 3 4 4 <1
T WIND DIR S W W W NW NW NW NW W SW SW SW W W W NW
T WIND SPD 1 2 2 4 10 11 14 9 5 6 5 5 16 17 18 16
DISPERSION VP VP PR VP VP VP PR FR PR PR PR
ADI 1 2 2 6 19 28 54 4 3 3 3 4 53 68 72 11
MAX LVORI 4 4 4 4 3 2 1 2 3 3 3 3 1 1 1 2
STABILITY F E E D D D C F G F F C C C C E
CEILING 8500 1600 4600 None None None None None None
STA PRES 29.03 28.98 28.97 28.92 28.98 28.96 29.0 29.02
Date 01/20Wed 01/21/26Thu 01/22/26Fri 01/23/26Sat 01/24/26
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 35 17 42 26 46 23 44 28 48
TEMP 32 28 21 18 38 35 30 28 43 36 28 24 40 38 31 30 45 43
DEWPT -3 1 3 4 10 15 17 20 27 22 18 14 16 19 22 22 29 31
RH 21 30 45 53 31 43 58 71 53 56 66 65 37 46 69 72 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW FW SC SC B1 B1 B1 SC FW SC SC SC B1 B2 B1
POP 12HR 0 0 0 10 20 5 5 10 30
RAIN S S 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
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