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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Wed Feb 4 2026
NCZ003-050900-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EST Wed Feb 4 2026
Date 02/04/26 Thu 02/05/26 Fri 02/06/26 Sat
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 26 42 21 45 23
TEMP 31 31 28 26 31 38 40 31 28 27 23 25 33 42 43 38 36 33 29 24
DEWPT 31 29 28 25 26 25 23 22 21 21 18 17 23 27 30 30 29 25 20 14
MIN/MAX RH 100 49 83 55 75
RH 100 92100 96 81 59 50 69 75 78 81 71 66 55 60 73 75 72 69 65
WIND DIR E NE NE N N N NW NW NW NW NW W W SW W W NW NW NW NW
WIND SPD 1 1 2 1 2 2 2 1 1 1 1 1 2 4 4 4 10 13 16 18
WIND GUST 17 20 32 37 43 44
CLOUDS OV OV OV B1 B1 FW FW B1 B2 B2 SC B1 B1 B2 B2 B2 B1 B1 SC FW
CLOUDS(%) 100100100 58 51 13 12 66 74 78 30 61 66 71 71 71 67 63 36 10
VSBY 3 5 4 5 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 5 0 20 10
RAIN S
SNOW C C
Obvis PF PF PF
MIX HGT 1 1 1 1 2 2 2 1 1 <1 <1 <1 1 4 3 3
T WIND DIR NE NE N N N NW NW NW NW NW NW NW W W W W
T WIND SPD 9 5 6 6 10 8 9 11 10 9 9 8 4 14 16 13
DISPERSION VP VP VP VP VP VP VP VP FR FR GD
ADI 8 5 6 8 22 22 26 5 5 4 4 6 9 56 55 9
MAX LVORI 8 6 8 6 3 2 2 3 3 4 4 3 3 1 1 3
STABILITY D D D C C B B F F F G C C C C E
CEILING 1900 None None 12600 None 6000 8000 3100
STA PRES 28.10 28.09 28.00 28.00 27.96 27.92 27.78
Date 02/07Sun 02/08/26Mon 02/09/26Tue 02/10/26Wed 02/11/26
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 33 16 42 27 55 35 57 38 57
TEMP 31 27 22 18 36 36 32 29 49 47 42 36 53 50 45 39 53 49
DEWPT 7 6 6 7 14 20 23 25 32 32 33 34 39 38 38 38 40 39
RH 36 40 49 61 40 52 69 85 52 56 70 92 59 63 76 96 61 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL FW SC SC B1 SC B2 B2 SC SC FW SC SC B2 OV B2 B1
POP 12HR 0 0 0 5 0 5 5 5 20
RAIN 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