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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Oct 19 2026
VAZ024-200800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 PM EDT Mon Oct 19 2026
Date 10/19/26 Tue 10/20/26 Wed 10/21/26 Thu
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 38 73 43 71 39
TEMP 66 56 50 46 43 41 58 69 71 59 52 49 45 43 57 68 70 59 49 45 42 40
DEWPT 29 34 34 34 33 33 38 40 44 46 47 47 44 43 49 47 47 45 44 44 42 40
MIN/MAX RH 74 34 100 43 100
RH 25 43 54 63 67 73 47 35 38 62 83 93 96100 75 47 44 60 83 96100100
WIND DIR N N NW NW NW NW N N NE N N N N N N N N N N N NW NW
WIND SPD 6 2 3 3 3 3 4 5 3 2 2 2 2 2 2 2 2 0 0 0 1 1
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW
CLOUDS(%) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 4 7
VSBY 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 2 <1 <1 <1 <1 <1 2 3 1 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NE N N N NW N NE N N N N N N N N N N N
T WIND SPD 10 4 5 5 5 5 17 11 11 4 5 5 4 4 6 9 9 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 28 2 3 3 3 6 40 43 22 2 3 3 2 5 17 34 25 2
MAX LVORI 2 2 3 3 3 3 1 1 2 3 5 6 9 9 3 1 2 3
STABILITY B G G G G B B B B G G G G B B B B G
CEILING None None None None None None None None None None
STA PRES 28.76 28.75 28.72 28.72 28.68 28.70 28.68 28.66 28.56
Date 10/22Fri 10/23/26Sat 10/24/26Sun 10/25/26Mon 10/26/26
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 73 44 67 39 63 39 67 42 74
TEMP 70 60 49 45 63 53 43 40 60 53 44 40 64 57 47 43 71 63
DEWPT 42 44 45 45 48 45 43 40 46 45 44 40 48 46 45 43 48 49
RH 36 55 86100 58 74100100 60 74100100 56 67 93100 44 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL CL CL CL CL CL CL FW CL CL FW FW FW FW FW FW FW
POP 12HR 0 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