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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Wed Feb 4 2026
VAZ046-050900-
RAWS 441101
37.39N 78.80W Elev. 804 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 23 38 19 42 21
TEMP 31 28 25 23 29 36 37 28 25 23 21 22 32 40 41 38 34 33 28 22
DEWPT 25 21 19 17 18 18 18 18 17 16 15 17 19 21 25 28 26 22 16 10
MIN/MAX RH 80 44 83 46 73
RH 78 75 78 77 63 47 46 66 71 74 77 81 58 46 52 67 72 63 60 59
WIND DIR NE NE NE NE NE NE N E NE N SW SW SW SW SW SW W W NW NW
WIND SPD 6 6 6 4 5 5 3 2 2 1 2 2 5 8 5 4 5 8 11 13
WIND GUST 17 19 25 28
CLOUDS B2 B2 B1 SC FW FW FW FW B1 B2 B1 SC SC B1 B2 OV B1 SC FW FW
CLOUDS(%) 82 82 55 42 23 7 9 16 55 76 60 30 50 69 79 89 60 30 21 12
VSBY 6 6 7 9 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 0 30 10
RAIN C
SNOW S
MIX HGT 1 2 1 1 2 2 2 <1 <1 <1 <1 <1 <1 2 2 <1
T WIND DIR NE NE NE NE NE N N E E E SE S SW SW SW SW
T WIND SPD 11 14 14 13 12 6 4 2 2 2 2 2 5 13 14 14
DISPERSION PR PR PR VP VP VP VP VP PR PR FR
ADI 8 10 10 22 26 20 14 1 1 1 1 2 7 29 25 10
MAX LVORI 4 3 4 3 2 2 2 3 3 3 4 5 3 2 2 3
STABILITY E E E B B B B G F F F B B D D E
CEILING None None None 2400 None None 5000 None
STA PRES 29.40 29.37 29.27 29.25 29.22 29.15 28.97
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 12 34 20 48 29 52 33 53
TEMP 31 25 20 14 30 29 25 21 42 41 35 30 47 45 40 34 49 46
DEWPT 1 1 1 1 3 11 13 14 21 27 25 24 31 31 31 31 33 33
RH 27 34 43 55 31 46 60 74 43 57 66 78 53 58 70 89 54 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW SC SC FW SC B2 B1 SC SC FW SC B1 B1 B1 SC
POP 12HR 0 0 0 5 5 5 5 0 20
RAIN 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