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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EST Sat Nov 29 2025
NCZ005-300900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
731 PM EST Sat Nov 29 2025
Date 11/29/25 Sun 11/30/25 Mon 12/01/25 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 28 48 27 46 32
TEMP 30 29 30 33 39 44 46 42 38 35 30 28 38 45 46 38 34 33 33 33
DEWPT 17 18 19 22 29 35 39 39 37 29 25 22 22 21 21 23 24 26 30 33
MIN/MAX RH 67 62 96 36 100
RH 58 63 63 63 67 70 76 89 96 78 81 78 52 38 37 54 66 75 89100
WIND DIR SE S S SW SW SW SW W NW N N N N NE E E E E NE NE
WIND SPD 3 3 3 2 5 8 5 3 3 5 5 5 6 5 4 2 2 2 2 2
CLOUDS B2 SC B2 B2 OV OV OV B1 SC SC FW FW FW FW SC B1 B2 OV OV OV
CLOUDS(%) 84 50 83 86100100100 62 47 38 19 13 11 20 30 64 82 98 95 95
VSBY 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10
POP 12HR 5 20 5 0 80
RAIN S S S S D D D
MIX HGT <1 <1 <1 <1 1 1 1 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR SE SE S SW W SW SW W NW N N N NE NE E E
T WIND SPD 5 4 3 2 3 8 10 4 3 14 10 9 12 8 4 2
DISPERSION VP VP VP VP VP PR PR VP VP VP VP
ADI 3 2 2 2 5 12 14 2 2 7 5 7 31 25 14 1
MAX LVORI 3 3 3 3 3 3 4 6 8 4 4 4 1 2 2 2
STABILITY F F F C D D D F F F F C C C C F
CEILING 16200 3000 1100 500 None None None None 26300
STA PRES 29.66 29.58 29.50 29.42 29.51 29.62 29.66 29.57
Date 12/02Wed 12/03/25Thu 12/04/25Fri 12/05/25Sat 12/06/25
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 43 28 48 29 52 29 45 33 47
TEMP 41 39 34 29 46 38 30 30 50 42 33 30 43 40 36 33 45 41
DEWPT 38 37 33 27 28 28 27 28 31 30 27 25 30 33 33 33 34 33
RH 89 92 96 92 49 67 88 92 48 62 78 81 60 76 89100 65 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 SC FW FW FW SC SC SC SC B1 B1 B2 B2 B2 B2 B1 B1
POP 12HR 90 20 0 0 5 10 30 50 30
RAIN D C S S C C C C 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