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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EST Fri Nov 28 2025
NCZ006-290900-
RAWS 310801
36.37N 79.29W Elev. 580 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 47 26 48 28
TEMP 26 22 21 36 44 45 34 30 29 29 31 39 47 48 43 39 36 32 29
DEWPT 14 13 13 15 14 15 17 16 17 18 22 26 36 40 40 38 32 27 24
MIN/MAX RH 72 27 69 59 95
RH 60 68 71 42 29 29 49 55 60 63 69 59 65 74 89 96 85 81 81
WIND DIR NW NW NW NE SE SE SE SE S S S SW SW SW W NW N N N
WIND SPD 1 1 1 2 2 2 2 2 2 1 1 3 5 4 3 3 5 5 5
CLOUDS CL CL CL FW FW CL SC B1 B2 B2 OV OV OV OV B2 SC SC SC SC
CLOUDS(%) 0 3 1 17 12 0 36 64 82 85 93100 99 99 87 50 33 31 27
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10
POP 12HR 0 0 5 40 30
RAIN S C
RAIN SHWRS SC IS
MIX HGT <1 <1 <1 2 4 3 <1 <1 <1 <1 <1 1 2 <1 <1
T WIND DIR NW W W E SE SE SE S S S W S SW SW W
T WIND SPD 6 2 2 6 2 6 3 3 3 3 3 3 4 4 4
DISPERSION VP VP VP VP VP VP VP VP PR PR
ADI 3 1 2 19 10 23 2 2 2 2 3 5 8 5 2
MAX LVORI 3 3 3 2 2 2 2 3 3 3 3 3 3 3 6
STABILITY G G B B B B G F F F C D D D F
CEILING None None None 16900 6700 1000 600 None
STA PRES 29.82 29.85 29.78 29.73 29.63 29.55 29.48
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 47 31 44 28 47 27 52 30 46
TEMP 45 38 35 33 40 38 34 28 45 36 31 29 49 41 35 31 44 39
DEWPT 22 26 28 33 38 35 30 25 27 29 26 27 32 33 29 26 28 30
RH 40 62 75100 92 89 85 88 49 75 81 92 52 73 78 81 53 70
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 OV OV B2 SC SC FW FW SC B1 SC SC B1 B2 B1 B1
POP 12HR 5 70 80 10 5 5 5 10 20
RAIN S L D L 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