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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Fri Jan 9 2026
NCZ001-100900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
231 AM EST Fri Jan 9 2026
Date 01/08/26 Fri 01/09/26 Sat 01/10/26 Sun
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 43 54 51 54 25
TEMP 45 48 49 51 52 52 53 52 52 53 51 52 52 52 49 41 34 27
DEWPT 42 46 49 51 52 51 51 51 51 51 51 52 52 50 46 38 31 23
MIN/MAX RH 95 89 100 92 100
RH 89 93100100100 96 93 96 96 93100100100 93 89 89 89 85
WIND DIR S S SW SW SW W SW SW SW S S SW W W W W W W
WIND SPD 13 13 12 10 8 6 5 5 5 9 11 11 12 18 23 29 34 36
CLOUDS OV OV OV OV OV OV OV OV OV OV OV OV OV OV OV B2 B2 SC
CLOUDS(%) 95 93 91 89 93 92 93 93 88 99 99 96 96 88 89 85 73 38
VSBY 10 7 7 6 6 6 6 7 6 3 3 3 3 6 6 10 10 10
POP 12HR 10 90 90 100 50
RAIN D D D D C C
RAIN SHWRS IS SC NM NM NM SC SC NM
MIX HGT <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 2 2 1
T WIND DIR S S S S S SW SW SW SW SE NE S SW W W NW NW W
T WIND SPD 6 5 5 8 4 2 2 2 1 1 2 5 10 12 24 33 35 34
DISPERSION FR PR PR PR PR GD GD GD GD
ADI 6 6 6 10 5 2 2 2 1 1 3 9 12 11 22 37 40 52
MAX LVORI 5 5 8 7 9 8 8 8 10 7 9 8 5 5 4 4 4 4
STABILITY D D D D D E E E E D D D D D D D D D
CEILING 500 1500 2600 4200 400 300 300 15600
STA PRES 26.77 26.76 26.81 26.74 26.65 26.56 26.59 26.61
Date 01/11Mon 01/12/26Tue 01/13/26Wed 01/14/26Thu 01/15/26
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 29 19 35 25 45 30 41 27 32
TEMP 26 22 21 20 32 28 27 27 43 33 33 32 40 34 33 28 30 26
DEWPT 15 10 12 11 8 11 9 11 18 22 21 22 25 28 29 26 22 19
RH 62 59 68 67 36 48 46 50 36 63 61 66 55 78 85 92 72 74
WIND SPD 15> 15> <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW FW FW FW CL FW FW FW SC B2 B2 B2 B2 B2 B2 B1
POP 12HR 10 5 0 0 0 5 20 40 30
SNOW S S C C C 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