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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Sat Jan 17 2026
NCZ001-180900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 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 17 20 16 26 10
TEMP 30 28 25 20 18 19 18 16 18 17 18 18 19 24 25 21 18 15 12 10
DEWPT 24 23 19 13 9 8 6 7 7 7 7 7 8 9 7 6 3 -1 -2 -4
MIN/MAX RH 83 59 68 45 53
RH 78 81 78 74 67 61 59 67 61 64 61 61 61 52 46 52 51 48 52 52
WIND DIR W W W W NW W NW W W W W W W W W W NW NW W W
WIND SPD 13 18 19 19 18 13 16 17 18 21 27 28 29 25 26 27 28 26 26 26
WIND GUST 35
CLOUDS B2 OV B2 B2 B2 B2 FW CL FW FW FW FW FW FW FW FW FW SC FW FW
CLOUDS(%) 81 90 87 83 83 70 15 5 6 8 6 11 15 12 11 16 21 34 11 7
VSBY 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 10 0 0 0
FLURRIES
SNOW C C S
MIX HGT <1 <1 1 1 1 2 2 <1 <1 <1 <1 1 2 2 2 1
T WIND DIR SW W W NW NW NW NW NW W W W W W W W NW
T WIND SPD 3 9 21 18 16 17 23 18 11 14 24 21 35 28 27 25
DISPERSION FR GD GD GD GD GD GD GD GD GD GD
ADI 3 8 20 26 25 30 42 16 10 13 22 29 72 62 57 23
MAX LVORI 4 4 3 3 3 1 1 3 2 2 2 2 1 1 1 2
STABILITY D D D D D D D D D D D D D D D D
CEILING 1200 200 None None None None None None
STA PRES 26.60 26.58 26.52 26.55 26.53 26.59 26.63
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 22 13 36 26 34 19 36 26 40
TEMP 19 18 16 16 33 28 29 29 31 27 24 20 33 29 29 30 39 34
DEWPT -9 -3 -2 1 7 13 17 22 23 17 14 9 13 17 19 21 25 27
RH 27 38 44 51 33 53 60 75 72 65 65 62 43 60 66 69 57 75
WIND SPD 15> <15 <15 15> 15> <15 <15 <15 <15
AVG CLOUDS FW CL CL CL FW SC SC B1 B2 B1 FW FW FW SC SC B1 B2 B1
POP 12HR 0 0 0 10 20 5 10 10 30
RAIN C C
SNOW 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
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