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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EST Wed Jan 7 2026
NCZ001-080900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
201 AM EST Wed Jan 7 2026
Date 01/06/26 Wed 01/07/26 Thu 01/08/26 Fri
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 44 50 38 52 46
TEMP 46 45 47 49 50 43 41 40 40 41 45 49 49 46 47 48 50 50
DEWPT 41 42 38 33 30 30 28 24 23 24 25 29 32 36 39 42 45 46
MIN/MAX RH 90 47 61 43 86
RH 83 89 71 54 46 60 59 52 50 50 45 46 52 68 74 80 83 86
WIND DIR W W W W W W W W W E S S S S S S S S
WIND SPD 29 27 24 18 16 9 8 5 4 4 6 10 10 11 13 14 14 13
WIND GUST 40 32
CLOUDS B1 B1 SC FW FW FW FW SC SC SC SC B1 B2 B2 B2 B2 B2 B2
CLOUDS(%) 67 63 40 8 8 20 19 37 46 37 47 59 79 79 74 79 83 85
VSBY 9 9 9 9 9 9 9 9 8 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 5 20
RAIN S S S
MIX HGT <1 <1 2 3 3 <1 <1 <1 <1 <1 <1 1 1 <1 <1 <1 <1 <1
T WIND DIR W W W W W W NW NW NW NW S S S SE SE S S S
T WIND SPD 21 17 26 27 18 8 6 5 4 2 10 13 11 9 11 10 8 9
DISPERSION GD PR PR PR VP FR FR GD GD
ADI 20 19 46 66 44 5 5 3 3 2 8 22 16 8 10 9 7 10
MAX LVORI 4 4 3 1 1 3 3 2 2 2 2 2 2 3 4 4 4 4
STABILITY D D D D D E E F E C C D D D D D D D
CEILING None None None None None 11700 3800 500
STA PRES 26.61 26.65 26.72 26.77 26.82 26.81 26.82 26.81
Date 01/09Sat 01/10/26Sun 01/11/26Mon 01/12/26Tue 01/13/26
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 57 51 54 29 31 18 35 25 40
TEMP 54 53 53 54 51 52 45 31 27 23 21 19 32 27 27 27 36 30
DEWPT 48 49 50 50 51 47 36 23 16 10 4 5 3 11 8 7 10 17
RH 80 86 89 86100 83 70 72 63 57 47 54 28 50 44 42 33 58
WIND SPD <15 <15 15> 15> 15> 15> <15 <15 <15
AVG CLOUDS B2 OV OV OV OV OV OV B2 B1 SC SC SC FW FW FW FW SC SC
POP 12HR 50 90 90 50 20 20 5 5 5
RAIN S C L D D D C
RAIN SHWRS SC
SNOWSHWRS IS IS IS
$$
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