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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EST Fri Jan 9 2026
NCZ003-100900-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
431 PM EST Fri Jan 9 2026
Date 01/09/26 Sat 01/10/26 Sun 01/11/26 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 53 63 36 43 23
TEMP 55 54 54 54 55 58 60 62 60 56 51 42 36 40 40 37 32 29 28 25 24
DEWPT 54 54 54 54 55 58 60 59 57 52 45 35 27 26 20 15 14 15 16 16 16
MIN/MAX RH 100 88 93 40 72
RH 96100100100100100100 90 90 86 80 76 69 57 44 40 47 55 60 68 71
WIND DIR E N N N NE S S SW SW W NW NW NW W W NW NW NW NW NW NW
WIND SPD 1 0 0 0 1 2 5 4 3 3 5 6 6 10 11 11 8 6 6 5 3
WIND GUST 13 14 18 23 21 26 28 28 27 24 20 17 13
CLOUDS OV OV OV OV OV OV OV OV OV OV B2 B1 FW SC SC FW FW FW FW FW FW
CLOUDS(%) 95 94 95 97 98 97 96 94 93 91 73 57 20 27 34 13 10 12 17 11 9
VSBY 3 2 4 3 2 3 3 2 7 7 10 10 10 10 10 10 10
POP 12HR 100 100 50 5 0
RAIN L C C C C
RAIN SHWRS SC O NM O NM
MIX HGT <1 <1 <1 <1 <1 <1 2 2 <1 1 2 2 1 6 7 6 2
T WIND DIR W N W NE E S S SW W W NW NW NW W NW NW NW
T WIND SPD 1 0 3 1 2 6 9 4 4 4 17 20 12 36 39 32 27
DISPERSION VP VP VP VP VP VP PR PR PR PR PR PR
ADI 1 0 2 1 2 7 17 8 2 2 12 14 21159139104 19
MAX LVORI 10 10 10 10 10 8 5 6 6 6 4 4 3 1 1 1 2
STABILITY F F F F C C D D F F E E C C D D E
CEILING 600 600 500 700 4000 None None None None
STA PRES 28.26 28.18 28.08 28.01 28.05 28.08 28.14 28.25
Date 01/12Tue 01/13/26Wed 01/14/26Thu 01/15/26Fri 01/16/26
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 48 26 53 32 51 29 41 19 40
TEMP 45 38 30 27 50 43 36 34 49 45 38 30 39 32 25 21 38 35
DEWPT 17 20 17 17 24 27 26 27 33 32 31 25 23 18 16 15 19 21
RH 32 48 58 65 36 53 67 75 54 60 76 81 52 56 68 77 46 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC B2 B2 B2 B2 B2 B1 B1 B1 SC SC FW
POP 12HR 0 0 0 5 20 30 30 20 5
RAIN S C C C C S
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