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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 AM EST Wed Feb 4 2026
NCZ003-042100-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
601 AM EST Wed Feb 4 2026
Date Wed 02/04/26 Thu 02/05/26 Fri 02/06/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 38 26 39 20 44
TEMP 34 37 38 36 33 32 30 28 26 29 35 38 32 27 24 22 21 31 40 43 39
DEWPT 30 35 35 33 31 30 28 27 23 24 24 24 22 19 17 17 17 21 24 29 29
MAX/MIN RH 88 97 56 83 54
RH 85 92 89 89 92 92 92 96 88 81 64 57 66 71 74 81 84 66 52 57 67
WIND DIR NE NE NE NE NE NE NE NE NE NE N N NW NW NW W W SW SW W W
WIND SPD 2 3 5 5 8 9 9 8 5 4 3 2 2 3 3 3 2 4 5 8 10
CLOUDS OV OV OV OV OV OV OV B2 B1 B1 SC SC SC SC SC SC SC SC SC SC SC
CLOUDS(%) 90 95 93 95 96 98 99 79 57 53 37 26 50 41 43 34 40 45 45 46 35
VSBY 6 5 5 3 3 3 4 3 5 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 70 5 0 20
RAIN C S S C L S
SNOW C C S
MIX HGT <1 <1 2 1 1 1 2 1 1 2 3 3 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NE NE NE NE NE NE NE NE NE N N N NW NW NW W SW SW SW W NW
T WIND SPD 2 10 11 11 10 13 14 9 8 11 9 9 8 9 4 3 3 6 17 26 11
DISPERSION PR PR PR PR VP VP VP VP FR
ADI 2 9 19 16 9 15 17 8 11 21 32 32 4 4 2 2 4 18 72 79 8
MAX LVORI 7 6 4 4 5 5 4 6 5 3 1 1 3 3 3 5 5 3 1 1 3
STABILITY C C D D D D D D D D B B F F F G B B B B E
CEILING 2100 500 500 2300 None None None None None None
STA PRES 29.04 29.00 29.01 28.97 28.98 28.90 28.92 28.86 28.78 28.68
Date Sat 02/07/26Sun 02/08/26Mon 02/09/26Tue 02/10/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 28 39 19 41 26 47 30 52
TEMP 35 28 35 30 21 20 36 36 30 27 43 40 33 31 48 45
DEWPT 25 17 12 12 10 9 16 20 23 22 27 29 27 27 33 34
RH 66 63 38 46 62 62 43 52 75 81 53 64 78 85 56 65
WIND SPD 15> <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW CL FW SC B1 B1 SC SC SC SC SC B1 B1 B1
POP 12HR 5 0 0 5 5 5 5 5
$$
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