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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EST Sun Nov 23 2025
NCZ003-240900-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
231 AM EST Sun Nov 23 2025
Date 11/22/25 Sun 11/23/25 Mon 11/24/25 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 44 64 36 60 42
TEMP 47 45 54 63 63 52 47 43 39 37 50 58 59 51 46 44 43 44
DEWPT 46 40 42 39 39 38 38 36 32 32 35 31 33 34 35 36 37 38
MIN/MAX RH 97 43 88 35 79
RH 96 82 64 41 41 59 71 76 76 82 56 36 37 52 65 73 79 79
WIND DIR N N NW W NW NW NW NW N N E SE SE SE SE SE S S
WIND SPD 2 2 2 5 5 4 3 2 2 2 2 3 2 2 2 2 1 2
CLOUDS FW FW FW CL CL CL CL CL CL CL CL SC SC SC B1 B1 B2 OV
CLOUDS(%) 11 22 7 4 4 5 0 2 4 4 5 29 30 46 53 55 81 94
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 5
RAIN C
Obvis PF
MIX HGT <1 <1 2 3 2 <1 <1 <1 <1 <1 <1 2 2 <1 <1 <1 <1 <1
T WIND DIR N N NW W W NW NW NW NW N E SE SE E E SE N N
T WIND SPD 4 6 3 5 9 4 3 2 3 2 3 5 5 2 2 1 0 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 2 7 8 19 26 2 2 1 2 2 4 17 14 1 1 1 0 2
MAX LVORI 8 6 3 2 2 3 4 5 6 6 3 2 2 2 3 4 4 4
STABILITY G B B C C F G G G B B B B F F F F C
CEILING None None None None None None None 7300
STA PRES 29.07 29.04 29.10 29.14 29.21 29.17 29.17 29.12
Date 11/25Wed 11/26/25Thu 11/27/25Fri 11/28/25Sat 11/29/25
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 56 52 66 35 48 27 46 26 48
TEMP 53 53 54 55 65 56 43 35 46 38 31 27 42 37 29 27 45 39
DEWPT 48 52 54 55 55 45 30 24 19 19 18 15 14 17 18 18 20 23
RH 83 96100100 70 66 60 64 34 46 58 60 31 44 63 68 36 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV B2 B2 B1 B1 SC FW SC FW FW FW FW FW SC SC SC SC
POP 12HR 60 60 30 5 0 5 5 5 0
RAIN C
RAIN SHWRS NM NM NM SC
$$
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