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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Tue Oct 27 2026
VAZ018-280800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Tue Oct 27 2026
Date 10/27/26 Wed 10/28/26 Thu 10/29/26 Fri
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 48 64 50 73 49
TEMP 53 52 50 51 57 62 62 54 52 52 51 50 63 72 71 57 53 51 51 50
DEWPT 46 46 46 47 49 49 49 49 49 49 49 48 56 54 50 48 46 45 44 43
MIN/MAX RH 86 61 99 47 79
RH 77 80 86 86 75 62 62 83 89 89 93 93 78 53 47 72 77 80 77 77
WIND DIR SE SE N N SE SE SE E N N N N SW W W W W W W W
WIND SPD 1 1 0 0 2 3 3 1 0 0 0 0 1 2 1 1 2 2 3 3
CLOUDS FW SC B1 B2 B2 B2 B2 B1 SC B1 B2 B2 FW CL CL CL CL FW FW FW
CLOUDS(%) 22 38 67 75 83 86 84 67 45 60 70 73 16 4 2 1 2 6 8 9
VSBY 10 10 9 5 9 10 10 10 10 8 4 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 1 2 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR SE SE SE SE SE SE SE SE S S SW W W W NW W
T WIND SPD 6 6 5 4 5 6 5 5 5 5 5 5 5 6 6 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 3 3 4 10 19 14 3 3 3 3 4 12 27 23 3
MAX LVORI 4 5 5 5 3 2 2 5 6 6 6 6 4 2 2 3
STABILITY G G F A B B B F F F F C A B A G
CEILING None 20000 22800 17300 None 14800 None None None
STA PRES 28.12 28.12 28.14 28.09 28.10 28.07 28.06 28.00
Date 10/30Sat 10/31/26Sun 11/01/26Mon 11/02/26Tue 11/03/26
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 76 52 67 51 63 54 67 55 68
TEMP 75 63 54 52 65 58 53 51 61 57 55 55 65 60 57 55 65 60
DEWPT 54 51 47 44 48 46 46 46 53 52 52 53 59 56 54 54 58 54
RH 48 65 77 74 54 64 77 83 75 83 90 93 81 87 90 96 78 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC B2 B2 B2 B2 OV OV B2 B2 OV B2 B2 B2 B2 B1 B1
POP 12HR 0 0 0 10 40 60 40 30 30
RAIN SHWRS SC SC SC NM SC SC IS SC SC SC
$$
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