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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1231 AM EST Wed Nov 5 2025
NCZ019-060900-
RAWS 312001
36.23N 81.32W Elev. 2380 ft
1231 AM EST Wed Nov 5 2025
Date 11/04/25 Wed 11/05/25 Thu 11/06/25 Fri
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 42 69 43 61 38
TEMP 45 44 43 57 66 66 57 55 52 48 43 54 61 59 47 43 41 39 39
DEWPT 34 33 33 38 40 41 38 43 44 42 37 34 32 34 35 33 32 31 31
MIN/MAX RH 69 36 82 34 73
RH 65 65 67 49 38 40 49 64 74 80 79 46 33 39 63 67 70 73 73
WIND DIR SW SW W SW SW SW W W NW N N N E SE S SW SW SW SW
WIND SPD 2 2 2 4 8 9 10 11 9 5 3 2 2 2 1 1 1 2 2
CLOUDS FW CL CL CL FW B1 FW FW FW FW CL CL FW FW FW FW FW FW FW
CLOUDS(%) 10 3 2 3 8 60 12 6 7 11 2 3 9 7 7 6 12 16 18
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 3 4 3 <1
T WIND DIR W W W SW W SW W NW NW NW N N NW S S
T WIND SPD 3 3 2 8 17 14 11 19 13 11 4 8 4 2 2
DISPERSION VP VP FR FR PR PR VP VP VP VP
ADI 2 2 2 12 53 35 10 13 9 5 5 26 22 8 1
MAX LVORI 3 3 3 2 1 1 2 3 3 4 4 2 2 2 3
STABILITY G G B B C C D E E F B B B B G
CEILING None None None None None None None None
STA PRES 28.07 28.03 27.91 27.93 27.99 28.08 28.04
Date 11/07Sat 11/08/25Sun 11/09/25Mon 11/10/25Tue 11/11/25
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 61 49 67 47 63 34 42 25 44
TEMP 58 54 51 49 66 54 49 48 62 49 41 34 42 33 29 26 43 33
DEWPT 43 47 48 48 48 47 46 45 49 41 32 26 24 19 17 15 19 20
RH 57 77 89 96 52 77 89 89 62 74 70 72 48 56 60 62 38 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B1 SC SC SC SC B1 B1 SC SC SC SC FW FW FW FW
POP 12HR 5 60 10 20 30 20 10 5 0
RAIN SHWRS NM SC IS SC SC IS
$$
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