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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
234 PM EST Wed Nov 19 2025
NCZ001-200900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
234 PM EST Wed Nov 19 2025
Date 11/19/25 Thu 11/20/25 Fri 11/21/25 Sat
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 57 50 57 51
TEMP 55 51 49 47 46 45 52 55 56 54 51 51 52 53 53 57 56 53 54 54 54 53
DEWPT 49 48 47 47 46 45 46 45 44 43 42 43 47 49 51 52 51 51 51 51 51 50
MIN/MAX RH 100 63 88 81 93
RH 80 89 93100100100 80 69 64 66 71 74 83 86 93 83 83 93 90 90 90 89
WIND DIR W W W W W W W W W W SW SW SW W W W SW SW W W W W
WIND SPD 8 6 5 5 5 6 5 4 4 4 5 6 8 9 9 9 8 6 10 16 17 17
CLOUDS B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B2 OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2
CLOUDS(%) 86 79 68 83 80 80 57 59 63 66 86 89 85 88 78 81 71 73 70 78 73 78
VSBY 10 10 9 8 6 5 10 10 10 10 9 8 6 7 10 10 10 10
POP 12HR 0 5 40 30 50
RAIN S C C C C C C C C C C
MIX HGT 1 <1 <1 <1 <1 <1 1 2 1 <1 <1 <1 <1 <1 <1 1 1 <1
T WIND DIR W W W W S SW W W W SW SW SW S SW W W SW SW
T WIND SPD 10 3 2 3 3 3 9 12 9 2 2 3 5 5 12 10 8 5
DISPERSION PR PR PR PR VP PR PR PR PR FR GD GD
ADI 16 2 2 2 2 4 12 23 13 2 2 2 5 6 14 16 11 4
MAX LVORI 4 6 7 9 9 9 4 3 2 3 3 4 4 4 5 4 4 6
STABILITY D E E E E D D D D E E E D D D D D E
CEILING 500 500 500 4800 7500 3500 400 400 400
STA PRES 26.79 26.78 26.77 26.75 26.76 26.71 26.71 26.64
Date 11/22Sun 11/23/25Mon 11/24/25Tue 11/25/25Wed 11/26/25
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 55 42 52 42 53 44 50 45 50
TEMP 52 48 46 43 49 45 44 43 52 46 46 45 48 46 47 46 49 44
DEWPT 48 44 39 40 39 39 39 37 39 38 39 37 41 41 42 43 43 40
RH 86 86 76 89 68 79 82 79 61 73 76 73 77 83 83 89 80 86
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC SC SC SC SC B1 B1 B2 B2 B2 B2 B2 B1 SC
POP 12HR 40 20 10 10 10 20 30 50 30
RAIN C S S C C C C
RAIN SHWRS SC IS 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