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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EST Sat Nov 22 2025
VAZ018-230900-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
431 PM EST Sat Nov 22 2025
Date 11/22/25 Sun 11/23/25 Mon 11/24/25 Tue
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 43 61 35 60 41
TEMP 53 50 47 45 43 53 60 56 47 44 40 37 35 50 59 57 46 44 43 42 42
DEWPT 47 45 43 40 38 40 39 38 36 34 33 31 29 30 25 26 28 29 31 31 33
MIN/MAX RH 85 46 82 26 70
RH 80 83 86 82 82 61 46 51 65 68 76 79 78 46 27 30 49 55 62 65 70
WIND DIR NW NW NW W NW W W NW NW NW NW NW NW SW SE SE SE SE SE S S
WIND SPD 3 2 2 2 4 9 10 10 6 4 3 2 2 2 3 3 2 2 2 2 2
WIND GUST 13 14 27 28 28 23 18 13 12
CLOUDS SC SC SC SC FW CL FW FW CL FW FW FW FW FW FW SC B1 B1 B1 B2 B2
CLOUDS(%) 38 35 32 26 13 2 6 8 5 9 6 7 7 13 25 26 54 60 67 73 83
VSBY 10 9 9 9 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 10
RAIN L
MIX HGT 1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 <1 2 2 <1
T WIND DIR NW NW NW NW W W W NW NW NW NW NW NW W S SE SE
T WIND SPD 12 10 9 11 10 19 24 25 13 12 9 8 5 2 8 11 5
DISPERSION VP VP VP VP PR VP VP VP VP VP VP VP
ADI 6 5 4 5 8 42 78 75 6 6 4 4 6 2 23 24 3
MAX LVORI 4 5 5 5 4 1 1 1 3 3 4 4 4 2 2 2 2
STABILITY G G G G C C C C F F G G B B B B F
CEILING None None None None None None None None 19600
STA PRES 27.78 27.80 27.81 27.82 27.90 27.95 28.01 27.99
Date 11/25Wed 11/26/25Thu 11/27/25Fri 11/28/25Sat 11/29/25
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 58 52 64 34 43 27 42 25 46
TEMP 55 53 54 54 64 49 39 34 43 34 31 28 41 31 28 25 45 33
DEWPT 46 49 51 50 49 36 26 22 17 14 14 13 12 11 13 14 18 18
RH 72 86 90 86 58 61 59 61 35 43 49 53 30 43 53 62 33 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV OV B2 B1 SC SC SC FW FW SC SC SC SC SC SC SC SC
POP 12HR 70 70 30 10 0 5 5 5 10
RAIN L L L L C
$$
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