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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EST Fri Nov 28 2025
VAZ046-290900-
RAWS 441101
37.39N 78.80W Elev. 804 ft
201 AM EST Fri Nov 28 2025
Date 11/27/25 Fri 11/28/25 Sat 11/29/25 Sun
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 26 42 19 44 25
TEMP 27 26 36 41 40 32 28 24 21 20 36 43 42 32 28 28 28 29
DEWPT 15 14 15 13 13 13 13 13 13 13 15 14 14 16 16 16 18 20
MIN/MAX RH 58 32 74 30 68
RH 60 60 42 31 33 45 53 62 71 74 42 30 31 51 60 60 66 69
WIND DIR W W NW W NW W W W W W E SE SE SE SE S S S
WIND SPD 9 9 12 12 11 5 5 3 2 2 2 4 4 2 2 3 2 3
WIND GUST 19 19 24 24
CLOUDS CL CL CL FW FW CL CL CL CL FW FW SC FW SC B1 B2 B2 B2
CLOUDS(%) 3 2 4 12 10 3 3 5 3 7 19 27 19 26 51 81 85 86
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 10
RAIN C
MIX HGT <1 <1 4 6 4 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1
T WIND DIR W W NW NW NW W W W W W SE S S SE S S S S
T WIND SPD 13 12 26 20 19 10 10 8 4 2 3 3 6 2 5 5 10 9
DISPERSION PR PR PR VP VP VP VP VP VP
ADI 9 10 77 67 57 5 5 4 2 2 9 11 18 1 3 3 5 7
MAX LVORI 2 2 1 1 1 2 2 3 3 3 2 2 2 2 3 3 3 3
STABILITY E C D D D F F G G B B C C G F F F C
CEILING None None None None None None None 8200
STA PRES 29.51 29.55 29.67 29.72 29.76 29.70 29.65 29.51
Date 11/30Mon 12/01/25Tue 12/02/25Wed 12/03/25Thu 12/04/25
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 46 25 45 29 41 26 46 26 49
TEMP 43 42 34 26 44 35 31 31 39 38 31 27 45 35 29 30 48 39
DEWPT 33 38 30 23 22 22 23 28 34 33 28 24 29 28 25 26 31 29
RH 67 86 85 88 41 59 72 88 82 82 88 88 53 75 85 85 51 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 SC FW FW SC B1 OV B2 B2 B1 SC FW FW SC SC SC SC
POP 12HR 50 20 5 50 70 30 0 5 5
RAIN C C S L C C
SNOW 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
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