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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 AM EST Thu Nov 20 2025
VAZ018-202100-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
701 AM EST Thu Nov 20 2025
Date Thu 11/20/25 Fri 11/21/25 Sat 11/22/25
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 58 47 66 56 65
TEMP 49 56 57 51 49 50 50 51 56 63 65 60 59 60 58 56 60 64 60 51
DEWPT 45 48 48 46 46 46 46 48 54 57 58 55 54 55 54 52 54 51 47 42
MAX/MIN RH 71 97 79 87 61
RH 86 74 72 83 89 86 86 89 93 81 78 84 83 84 86 86 81 63 62 71
WIND DIR SW W W W W W W SW SW SW SW SW SW W W W W W NW NW
WIND SPD 4 4 3 2 2 2 2 2 2 3 3 3 3 4 4 4 5 5 4 3
WIND GUST 13 17 19 19 17 16
CLOUDS OV SC B1 B2 OV B2 OV OV OV OV B2 B2 B2 OV OV B1 B1 B1 SC SC
CLOUDS(%) 100 48 54 78100 84100100 90 91 78 84 84 88 88 61 61 62 34 36
VSBY 10 10 10 10 10 9 8 4 7 7 9 9 8 9 10 8 9 9 9 9
POP 12HR 5 60 70 80 40
RAIN S C L L C C D D D D C C S S
MIX HGT <1 2 2 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1 1 2 2 <1
T WIND DIR S W W SW S N S SE SE SW S S SW SW W W NW NW NW NW
T WIND SPD 3 6 11 6 2 0 2 2 1 5 5 5 6 12 13 13 23 13 11 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 4 14 26 3 2 0 2 3 1 10 6 3 3 8 9 15 37 29 32 5
MAX LVORI 5 4 3 5 6 6 6 6 8 4 4 5 5 4 5 4 3 2 1 3
STABILITY D D B F D F D D C C C F F E E D D D C G
CEILING 100 None 1500 1000 400 600 600 800 1800 None
STA PRES 27.89 27.85 27.85 27.82 27.78 27.70 27.64 27.60 27.69 27.75
Date Sun 11/23/25Mon 11/24/25Tue 11/25/25Wed 11/26/25
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 40 61 40 62 44 58 49 64
TEMP 44 41 60 48 44 40 61 48 45 45 55 52 51 49 63 52
DEWPT 38 34 36 36 34 33 38 36 35 38 46 45 46 46 50 44
RH 79 76 41 63 68 76 42 63 68 76 72 77 83 89 62 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW FW SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR 10 5 10 10 20 40 60 20
RAIN S C C L C 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