Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
504 PM EST Mon Nov 17 2025
VAZ046-172315-
RAWS 441101
37.39N 78.80W Elev. 804 ft
504 PM EST Mon Nov 17 2025
Date Mon 11/17/25 Tue 11/18/25 Wed 11/19/25
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19
MAX/MIN TEMP 58 28 56 42 66
TEMP 46 41 37 31 29 46 55 56 51 49 45 45 43 54 64 65 56
DEWPT 15 16 17 18 19 23 21 24 29 34 40 41 42 46 47 47 46
MAX/MIN RH 19 66 26 95 51
RH 28 36 44 58 66 40 26 29 42 56 82 86 96 74 54 52 69
WIND DIR W W W W SW SW S S SE S SW SW W N N NE NE
WIND SPD 5 3 2 2 2 3 5 5 4 4 4 4 4 4 5 5 4
CLOUDS CL CL FW FW CL SC B2 B2 OV OV B2 B2 SC FW FW SC SC
CLOUDS(%) 2 4 9 6 4 26 70 83100100 82 77 28 21 21 38 48
VSBY 10 10 10 10 10 10 10 10 6 6 6 6 10 10 10 10 10
POP 12HR 0 0 20 80 0
RAIN D D L L
MIX HGT <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 1 3 2 <1
T WIND DIR W W W W SW SW SW S SE S SW W E N NE NE NE
T WIND SPD 4 2 2 2 2 9 8 10 6 8 3 3 1 4 5 8 10
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 2 1 1 1 2 18 18 19 5 7 2 2 1 6 17 20 7
MAX LVORI 2 2 2 3 3 2 2 2 2 3 5 6 9 3 2 2 3
STABILITY F G G G B B C C E D E E B B B B E
CEILING None None None 8800 5400 1700 None None
STA PRES 29.42 29.48 29.49 29.42 29.33 29.36 29.44 29.43
Date Thu 11/20/25Fri 11/21/25Sat 11/22/25Sun 11/23/25
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19
MIN/MAX TEMP 43 65 49 71 51 66 42 60
TEMP 47 44 62 57 50 50 69 64 58 52 64 54 48 42 59 50
DEWPT 45 44 48 49 48 49 55 54 53 51 49 46 43 41 42 41
RH 93100 60 75 93 96 61 70 83 96 58 74 83 96 53 71
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 B1 B2 B2 B2 B2 B1 B2 B1 B1 B1 B1 SC SC
POP 12HR 10 0 20 20 50 40 20 10
RAIN S S S C C C 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