Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
201 AM EST Thu Nov 20 2025
NCZ001-210900-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
201 AM EST Thu Nov 20 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 58 49 60 52
TEMP 45 44 51 56 56 52 51 52 52 53 54 58 57 54 54 55 54 54
DEWPT 45 44 47 46 45 45 45 46 49 51 53 54 53 52 52 52 52 52
MIN/MAX RH 100 66 99 84 94
RH 100100 86 69 66 77 80 80 89 93 96 86 86 93 93 90 93 93
WIND DIR W W W W W W W SW SW W W W W W W W W W
WIND SPD 5 5 5 9 6 4 5 5 6 9 9 10 8 8 12 18 19 18
WIND GUST 19
CLOUDS B2 B2 B1 SC B1 B2 OV OV OV OV B2 OV B2 B1 B1 B2 B2 B2
CLOUDS(%) 73 77 63 43 53 79100100100100 85 89 74 68 68 78 78 82
VSBY 6 4 10 10 10 10 9 8 6 5 8 10 10 9 9 10 10 10
POP 12HR 0 5 50 50 70
RAIN S C C C C C C C C L L C
Obvis PF PF
MIX HGT <1 <1 1 2 1 <1 <1 <1 <1 <1 <1 1 <1 <1 <1 <1 <1 <1
T WIND DIR S SW W W W SW W W W SW W W W S SW W W W
T WIND SPD 3 3 9 14 13 4 3 3 3 3 6 14 11 5 9 11 12 20
DISPERSION PR VP PR PR PR PR FR GD GD
ADI 2 4 12 37 22 3 2 3 3 4 8 24 14 5 8 10 11 23
MAX LVORI 9 9 4 3 3 4 4 5 6 6 6 4 5 6 6 5 5 5
STABILITY E D D C D E E D D D D D D D D D D D
CEILING 8200 8300 8100 1500 500 400 2800 300
STA PRES 26.79 26.76 26.76 26.73 26.71 26.65 26.61 26.58
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 56 40 52 39 54 43 50 46 54
TEMP 53 47 44 41 52 42 41 40 53 45 44 44 46 46 49 47 52 46
DEWPT 50 44 41 36 35 36 35 34 37 39 39 40 45 44 47 45 45 42
RH 89 89 89 82 52 79 79 79 54 79 82 86 96 93 93 93 77 86
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC SC SC FW FW SC SC B1 B2 B2 OV B2 B2 B1 B1 B1
POP 12HR 40 10 5 10 10 20 50 60 20
RAIN C S S S C C L C 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