Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Thu Oct 22 2026
NCZ005-222000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
431 AM EDT Thu Oct 22 2026
Date Thu 10/22/26 Fri 10/23/26 Sat 10/24/26
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 69 40 65 40 62
TEMP 42 42 60 68 68 53 47 43 40 40 57 64 65 53 48 44 41 41 52 60 61 52
DEWPT 40 40 44 37 35 37 38 37 37 37 45 46 44 47 46 44 41 41 43 41 40 43
MAX/MIN RH 29 89 47 100 43
RH 93 93 55 32 29 54 71 79 89 89 64 52 46 80 93100100100 71 49 46 71
WIND DIR NW NW N N N NE N N N N NE NE NE NE NE NE NE N NE NE NE NE
WIND SPD 1 2 4 5 4 1 2 2 2 3 8 8 8 4 4 3 4 5 6 6 6 4
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW CL CL FW CL CL
CLOUDS(%) 2 1 1 3 3 2 3 3 2 1 2 5 2 2 4 4 8 5 3 11 2 2
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 2 4 4 <1 <1 <1 <1 <1 3 4 5 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR NW NW N N N N N N N N NE NE NE NE NE NE NE N NE NE NE NE
T WIND SPD 2 3 11 9 10 2 3 3 4 5 14 12 12 10 9 6 4 4 11 9 9 4
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 4 28 42 48 1 2 2 2 6 50 63 68 5 4 3 2 5 42 45 46 2
MAX LVORI 7 6 2 1 1 3 3 5 6 5 1 1 1 4 6 9 9 9 3 1 1 3
STABILITY G B B B B G G G G B B B B F F G F B B B B F
CEILING None None None None None None None None None None
STA PRES 29.38 29.36 29.41 29.47 29.55 29.56 29.66 29.69 29.74 29.70
Date Sun 10/25/26Mon 10/26/26Tue 10/27/26Wed 10/28/26
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 40 66 40 69 41 71 46 69
TEMP 42 41 64 55 44 41 66 56 44 42 69 60 49 47 67 60
DEWPT 42 41 46 47 44 41 44 45 42 41 45 49 47 46 49 51
RH 100100 52 74100100 45 66 93 96 42 67 93 96 52 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW CL CL CL CL CL FW FW FW SC SC B1 SC
POP 12HR 0 0 0 0 0 0 0 0
$$
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