Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Oct 17 2026
VAZ018-172000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Sat Oct 17 2026
Date Sat 10/17/26 Sun 10/18/26 Mon 10/19/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 53 36 57 38 64
TEMP 48 51 50 43 40 39 37 37 48 55 55 45 42 41 39 39 55 64 62 50
DEWPT 41 36 35 30 29 28 26 24 26 29 31 30 29 28 27 27 32 37 40 38
MAX/MIN RH 54 66 37 64 37
RH 77 56 56 60 64 64 64 59 42 37 40 55 60 59 62 62 41 37 44 63
WIND DIR N N N N N N N N NE E NE NE NE N N N NE NE NE N
WIND SPD 10 10 10 8 6 4 4 4 6 5 5 3 3 3 3 3 3 3 3 1
WIND GUST 23 23 23 20 17 13 13
CLOUDS B1 SC FW CL CL CL CL CL CL CL CL CL FW FW FW FW FW FW FW FW
CLOUDS(%) 59 49 9 1 4 3 1 2 1 3 3 0 7 10 8 9 7 10 12 17
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 0 0 0 0
RAIN SHWRS
MIX HGT 4 5 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR N N N N N N NW N NE NE E E NE N N N NE NE NE NE
T WIND SPD 23 20 19 14 9 4 3 3 11 10 9 3 3 3 4 4 11 11 13 5
DISPERSION PR PR VP VP VP VP VP VP VP
ADI 60 83 71 10 4 2 2 4 32 40 31 2 2 2 2 5 27 41 44 3
MAX LVORI 3 1 1 2 3 3 3 3 1 1 1 3 3 3 3 3 2 1 1 3
STABILITY D C C E F F F B B B B G G G G B B B B G
CEILING 1700 None None None None None None None None None
STA PRES 27.96 28.04 28.14 28.19 28.26 28.22 28.23 28.18 28.17 28.09
Date Tue 10/20/26Wed 10/21/26Thu 10/22/26Fri 10/23/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 42 71 46 68 44 69 47 69
TEMP 46 43 70 57 49 46 67 56 49 45 67 58 51 48 68 58
DEWPT 35 33 39 40 38 37 45 44 42 40 47 47 45 43 49 46
RH 65 67 32 53 66 71 45 64 77 82 49 67 80 83 51 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW FW FW FW SC FW FW FW FW
POP 12HR 0 0 0 5 5 5 5 5
$$
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