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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
531 PM EST Wed Feb 4 2026
VAZ018-050900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
531 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 24 38 18 39 15
TEMP 30 29 28 25 25 29 36 36 26 24 22 20 21 29 37 37 33 32 30 24 17
DEWPT 29 27 25 24 21 22 21 19 16 13 13 12 14 19 24 26 27 25 21 15 8
MIN/MAX RH 95 48 74 58 78
RH 96 92 88 96 84 75 54 50 65 62 68 71 74 66 59 64 78 75 69 68 67
WIND DIR E E SE N NW NW NW NW NW NW NW W W W W W W NW NW NW NW
WIND SPD 2 2 1 1 1 2 2 3 3 2 2 3 3 4 6 5 9 14 17 20 23
WIND GUST 14 13 14 14 14 16 20 24 32 41 47 55 57
CLOUDS OV OV OV B2 B2 B1 FW FW B2 B2 B1 SC B1 B2 B2 OV OV OV B2 B2 B1
CLOUDS(%) 100100 89 83 74 58 24 13 70 76 62 26 57 72 87 91 94 88 83 73 64
VSBY 2 2 3 2 3 8 9 9 10 9 9 10 10 9 9 7 8
POP 12HR 40 0 0 50 30
RAIN S C
SNOW C C S C S C S S
Obvis PF PF PF PF
MIX HGT <1 <1 <1 <1 <1 <1 2 2 <1 <1 <1 <1 <1 1 2 3 3
T WIND DIR E E SE N N NW NW NW NW NW NW NW W W W W W
T WIND SPD 4 4 2 1 2 5 5 8 13 10 10 10 10 10 18 24 21
DISPERSION VP VP VP VP VP VP VP VP PR GD GD GD
ADI 4 4 1 1 2 5 14 17 6 5 5 5 8 15 40 55 29
MAX LVORI 7 6 7 8 5 3 2 2 3 3 3 3 3 3 1 1 3
STABILITY D D F F C C B B F F F G C D D D D
CEILING 0 700 None None 11000 None 3500 2400 1000
STA PRES 27.81 27.76 27.74 27.65 27.65 27.60 27.53 27.40
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 25 9 36 26 48 32 52 35 51
TEMP 23 19 15 11 31 32 29 27 43 42 38 33 48 46 41 36 48 45
DEWPT 2 0 0 2 10 17 19 20 29 29 29 29 36 34 34 33 36 32
RH 39 42 50 66 41 53 66 74 57 60 70 85 63 63 76 89 63 60
WIND SPD 15> <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC SC SC SC B1 B2 B1 SC SC SC SC B2 B2 B2 B2
POP 12HR 0 0 5 5 5 5 5 10 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