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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EST Fri Nov 28 2025
VAZ046-290900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1001 PM EST Fri Nov 28 2025
Date 11/28/25 Sat 11/29/25 Sun 11/30/25 Mon
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 20 45 27 44 26
TEMP 25 22 20 35 42 42 32 29 29 28 30 37 41 44 41 37 33 30 28
DEWPT 13 13 13 14 14 14 15 15 16 17 20 23 33 37 37 33 28 23 22
MIN/MAX RH 73 30 66 57 86
RH 60 68 74 41 31 31 49 55 58 63 66 56 73 76 85 85 82 75 78
WIND DIR W W W SE S S SE SE S S S SW SW SW SW W NW NW N
WIND SPD 3 2 2 2 4 3 3 3 3 3 4 6 8 8 6 6 6 5 4
CLOUDS CL CL CL SC SC CL SC B1 B2 B2 OV OV OV OV B1 SC SC FW FW
CLOUDS(%) 0 0 0 31 42 0 47 59 84 86 91100100 95 66 38 26 20 20
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 4 10 10 10 10 10 10
POP 12HR 0 0 5 40 30
RAIN S S C
RAIN SHWRS SC
MIX HGT <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 1 1 <1 <1
T WIND DIR W W W E S SE SE S S S SW SW SW SW W
T WIND SPD 5 2 2 3 2 6 3 6 5 4 5 10 12 4 5
DISPERSION VP VP VP VP VP VP PR PR PR PR
ADI 3 1 2 10 8 20 2 3 3 2 6 14 18 5 4
MAX LVORI 3 3 3 2 2 2 2 3 3 3 3 2 3 4 5
STABILITY G G B B C B F F F F D D D D E
CEILING None None None 14200 6500 1300 400 None
STA PRES 29.73 29.78 29.71 29.66 29.56 29.46 29.38
Date 12/01Tue 12/02/25Wed 12/03/25Thu 12/04/25Fri 12/05/25
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 44 29 42 26 45 27 49 27 43
TEMP 43 35 31 31 39 37 32 27 43 34 30 29 47 39 33 29 42 36
DEWPT 21 23 25 30 36 33 27 23 26 26 24 24 30 29 25 24 25 27
RH 41 61 78 96 89 85 81 85 51 72 78 81 51 67 72 81 50 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B2 OV OV B2 SC SC FW FW SC B1 SC SC B1 B1 B1 B1
POP 12HR 0 60 80 10 5 5 5 10 20
FRZG RAIN L D
RAIN D L S
SLEET L
$$
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