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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 PM EST Fri Jan 16 2026
NCZ003-170900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
331 PM EST Fri Jan 16 2026
Date 01/16/26 Sat 01/17/26 Sun 01/18/26 Mon
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 29 47 29 36 21
TEMP 39 34 31 31 32 33 36 44 47 43 37 36 33 30 31 33 34 29 25 23 22 22
DEWPT 9 11 13 15 17 22 30 34 35 33 30 29 27 23 21 15 13 13 12 12 11 10
MIN/MAX RH 69 54 78 43 63
RH 28 38 47 51 53 63 79 68 63 67 75 75 78 75 66 47 41 51 57 62 62 59
WIND DIR S S S SW SW SW SW SW W W NW NW NW NW NW NW W W W W W W
WIND SPD 8 6 9 9 8 8 6 6 5 4 4 5 5 5 5 5 5 5 4 4 5 5
WIND GUST 17
CLOUDS CL CL FW SC B2 OV B2 SC SC B1 B2 OV OV OV B2 B2 FW CL CL CL FW FW
CLOUDS(%) 3 3 21 40 73 94 83 45 40 62 70 88 93 90 84 73 25 3 5 5 6 6
VSBY 10 10 10 10 10 8 10 10 10 10 7 7 6 6 6 7 7 10
POP 12HR 10 20 40 30 0
RAIN S S S C C S S
SNOW C C C
MIX HGT 3 <1 <1 <1 <1 <1 1 2 3 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR S S S SW S SW SW SW SW SW W NW NW W NW W W W
T WIND SPD 14 8 9 9 6 9 8 10 5 2 2 1 2 4 8 5 10 4
DISPERSION PR PR PR PR VP VP PR PR PR VP VP PR
ADI 47 4 6 6 6 10 13 24 17 2 2 1 2 5 18 15 39 2
MAX LVORI 1 2 2 2 2 2 4 3 2 3 4 4 4 3 3 2 1 2
STABILITY C F E E D D D C C E E E E D D D C F
CEILING None 4500 1100 None 11100 8400 8400 None None
STA PRES 28.99 28.96 29.02 29.02 29.06 29.05 29.02 28.95
Date 01/19Tue 01/20/26Wed 01/21/26Thu 01/22/26Fri 01/23/26
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 15 33 18 43 29 50 28 44
TEMP 39 35 23 15 29 26 20 18 39 36 30 31 46 40 33 28 40 39
DEWPT 14 13 2 -6 -8 -1 1 1 8 15 17 21 31 26 22 20 24 26
RH 35 40 39 38 19 30 43 46 27 42 58 66 55 57 63 71 52 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW CL FW FW SC SC B1 B1 SC SC SC SC SC
POP 12HR 0 0 0 0 0 10 20 20 20
RAIN S S S
SNOW 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
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