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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EST Sun Jan 18 2026
NCZ003-190900-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
701 PM EST Sun Jan 18 2026
Date 01/18/26 Mon 01/19/26 Tue 01/20/26 Wed
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 22 41 15 35 16
TEMP 25 23 23 23 31 38 39 30 25 22 19 16 25 32 35 28 21 20 18 17
DEWPT 13 13 13 12 12 10 7 8 5 3 1 -3 -4 -5 0 3 4 3 4 5
MIN/MAX RH 64 26 45 19 58
RH 60 65 65 62 45 31 26 39 42 43 44 42 27 19 22 33 47 47 53 58
WIND DIR W W W W W W W W NW NW NW NW NW W NW W N N N N
WIND SPD 2 1 2 3 5 9 8 5 2 2 2 2 3 5 3 1 0 0 0 0
WIND GUST 18 19 20 16 13
CLOUDS CL CL FW FW CL FW FW FW SC FW FW FW CL CL CL CL CL CL FW FW
CLOUDS(%) 4 4 6 6 5 7 6 13 28 23 24 9 4 5 4 4 4 5 8 14
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 3 4 4 1 2 2 1 1 3 5 5 <1
T WIND DIR W SW W W W W W NW NW NW NW NW NW NW NW NW
T WIND SPD 6 6 6 13 18 17 17 18 18 13 12 14 23 21 16 6
DISPERSION VP VP VP PR VP VP VP VP VP VP VP
ADI 3 3 3 17 58 62 63 8 8 6 6 22 88 86 87 3
MAX LVORI 3 3 3 2 1 1 1 2 2 2 2 2 1 1 1 2
STABILITY G G G B C C C G G G G B B C B G
CEILING None None None None None None None None None
STA PRES 28.02 28.01 28.06 28.12 28.22 28.27 28.36 28.41
Date 01/21Thu 01/22/26Fri 01/23/26Sat 01/24/26Sun 01/25/26
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 27 48 21 45 26 44 23 37
TEMP 38 35 30 31 45 36 26 22 42 37 30 27 41 38 31 25 33 29
DEWPT 11 16 19 24 26 19 14 11 15 19 19 21 26 26 25 21 19 16
RH 32 45 63 75 47 50 60 62 33 48 63 78 55 62 78 84 56 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B1 FW FW SC SC SC SC B1 B2 B2 B1 B1 B1 B1
POP 12HR 0 20 20 5 5 20 40 50 40
RAIN S C C C C
SNOW S S C 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