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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EST Sat Nov 22 2025
VAZ020-230900-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
801 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 39 59 32 59 39
TEMP 49 46 42 39 50 58 54 46 42 39 35 33 48 58 55 46 44 42 41 41
DEWPT 42 40 38 36 36 35 33 31 30 30 29 27 27 22 21 25 26 29 30 33
MIN/MAX RH 88 41 82 24 71
RH 77 79 86 89 58 42 45 55 62 70 78 78 44 25 26 43 49 60 65 73
WIND DIR NW W W W W W NW W W W NW NW NW S S S S S S S
WIND SPD 2 2 2 2 4 5 5 3 2 2 2 2 1 2 2 2 2 2 2 2
WIND GUST 17 17
CLOUDS SC SC SC FW FW FW FW CL FW CL FW FW FW FW SC B1 B1 B2 B2 B2
CLOUDS(%) 40 49 27 25 9 12 10 5 7 5 7 7 13 22 35 56 61 75 75 75
VSBY 3 3 1 2 10 10 10 10 10 3 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
RAIN L
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 <1 2 1 <1
T WIND DIR NW W NW W W W NW NW W NW NW NW NW S S S
T WIND SPD 6 3 3 4 17 25 24 11 6 8 6 5 1 6 8 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 5 36 83 67 5 3 4 3 6 1 18 14 2
MAX LVORI 4 5 6 5 1 1 1 3 3 3 4 4 2 2 2 2
STABILITY G F G B C C C G G G G B B B B F
CEILING None None None None None None None 15600
STA PRES 27.84 27.84 27.85 27.93 28.00 28.06 28.04
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 54 50 63 33 42 27 40 24 44
TEMP 53 51 53 53 62 49 39 33 42 33 31 27 39 31 27 24 43 33
DEWPT 41 45 48 50 46 33 25 21 14 12 13 12 9 9 11 13 14 15
RH 64 80 83 89 56 54 57 61 31 41 47 53 28 39 50 62 30 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV OV B2 B1 B1 SC SC FW FW SC SC SC SC SC SC SC SC
POP 12HR 70 60 20 5 0 5 5 5 10
RAIN L L L C 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