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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Sun Oct 18 2026
VAZ018-190800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 PM EDT Sun Oct 18 2026
Date 10/18/26 Mon 10/19/26 Tue 10/20/26 Wed
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 68 41 72 43
TEMP 59 46 43 42 40 39 58 67 67 52 47 45 43 42 63 70 69 54 49 48 46 44
DEWPT 29 30 29 27 27 26 30 31 38 37 35 34 32 31 36 37 45 41 40 40 39 38
MIN/MAX RH 60 26 66 30 82
RH 32 53 57 55 59 59 34 26 34 56 63 65 65 65 36 30 42 61 71 74 76 79
WIND DIR E NE NE NE N N NE N N N NW NW NW NW N N N NW NW NW NW NW
WIND SPD 3 1 1 1 2 2 2 3 2 2 3 3 4 4 2 3 2 3 2 2 2 2
CLOUDS CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL
CLOUDS(%) 3 1 3 4 2 3 1 5 5 1 2 4 1 1 1 3 4 1 3 4 3 4
VSBY 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 3 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NE NE NE N N N NE NE NE N N N NW NW N N N N
T WIND SPD 9 3 3 3 3 4 11 10 10 3 4 4 5 5 11 13 12 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 31 2 2 2 2 5 23 36 26 2 2 2 3 6 22 58 36 2
MAX LVORI 1 2 3 3 3 3 2 1 2 3 3 3 3 3 2 1 1 3
STABILITY B G G G G B B B B G G G F B B B B G
CEILING None None None None None None None None None None
STA PRES 28.21 28.21 28.17 28.13 28.05 28.03 28.00 28.01 27.96
Date 10/21Thu 10/22/26Fri 10/23/26Sat 10/24/26Sun 10/25/26
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 69 41 70 44 66 42 61 40 65
TEMP 68 56 46 42 68 55 47 46 66 51 46 42 60 50 44 41 64 54
DEWPT 45 43 41 38 41 39 39 39 48 42 40 38 44 39 38 36 43 41
RH 43 62 83 86 37 55 74 76 52 71 79 86 55 66 79 82 46 61
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW CL CL CL FW CL FW 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