Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Thu Oct 22 2026
VAZ046-230800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
731 PM EDT Thu Oct 22 2026
Date 10/22/26 Fri 10/23/26 Sat 10/24/26 Sun
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 42 66 39 65 40
TEMP 58 52 49 46 44 56 63 64 55 50 46 44 41 54 62 63 54 44 42 41 41
DEWPT 32 33 35 39 41 45 44 42 42 40 37 35 35 45 42 39 43 44 42 40 40
MIN/MAX RH 90 43 77 41 100
RH 37 48 58 76 89 66 50 45 61 68 71 70 79 71 48 41 66100100 96 96
WIND DIR N N N N NE NE NE NE NE NE NE NE NE NE NE NE NE NE N N N
WIND SPD 4 4 4 5 6 12 10 9 4 4 4 4 4 6 6 6 3 3 2 4 4
CLOUDS CL CL CL CL CL FW FW FW FW FW FW FW FW CL CL FW CL CL CL FW FW
CLOUDS(%) 0 0 0 0 0 8 13 12 7 12 10 14 21 0 0 7 2 4 4 7 11
VSBY 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 <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR N N N N N NE NE NE NE NE NE NE NE E E E E
T WIND SPD 3 3 4 4 6 13 11 11 8 9 5 8 8 10 6 8 10
DISPERSION VP VP VP PR VP VP VP VP VP VP VP VP
ADI 2 2 2 2 7 40 42 41 4 4 3 4 8 39 33 39 5
MAX LVORI 2 2 3 4 5 1 1 1 3 3 3 3 4 3 1 1 3
STABILITY F F F F B C C C F F F F B B B B G
CEILING None None None None None None None None None
STA PRES 29.46 29.52 29.61 29.63 29.72 29.77 29.81 29.79
Date 10/25Mon 10/26/26Tue 10/27/26Wed 10/28/26Thu 10/29/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 66 39 70 43 71 46 65 47 68
TEMP 64 54 43 41 68 55 45 44 69 59 48 47 63 57 49 48 66 58
DEWPT 49 49 43 41 46 47 45 44 51 52 48 47 50 52 49 48 53 53
RH 58 83100100 45 74100100 53 78100100 62 83100100 63 83
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL FW CL CL FW FW FW FW B1 SC SC SC SC SC SC
POP 12HR 0 0 0 0 0 0 0 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