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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Wed Oct 28 2026
VAZ024-290800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
401 PM EDT Wed Oct 28 2026
Date 10/28/26 Thu 10/29/26 Fri 10/30/26 Sat
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 73 46 80 43
TEMP 66 58 53 51 49 48 60 71 73 60 54 51 48 46 66 78 77 61 54 49 45 43
DEWPT 51 51 50 48 48 48 53 52 51 50 50 47 44 45 52 54 51 49 47 45 43 42
MIN/MAX RH 99 45 98 39 97
RH 58 77 89 89 96100 78 51 46 69 86 86 86 96 61 43 40 65 77 86 93 96
WIND DIR SE N N N N N N SW SW SW W NW NW NW NW NW NW N N N N N
WIND SPD 2 0 0 0 0 0 0 2 1 1 1 1 1 1 1 3 3 3 1 1 0 0
CLOUDS B1 B1 B1 B1 B2 B1 FW FW CL CL CL FW FW FW FW FW FW FW FW SC SC B1
CLOUDS(%) 68 63 56 58 77 60 24 6 0 2 1 8 7 14 9 10 13 21 19 38 48 52
VSBY 10 10 10 8 5 5 9 10 10 10 10 1 0 0 2 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
Obvis PF PF
MIX HGT 3 <1 <1 <1 <1 <1 1 3 2 <1 <1 <1 <1 <1 2 5 4 <1
T WIND DIR SE E SE N W W W W W SW W W NW NW NW NW NW N
T WIND SPD 6 6 4 3 3 4 6 5 5 5 5 5 6 6 8 11 10 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 22 3 2 2 2 4 12 19 17 3 3 3 3 7 16 62 44 4
MAX LVORI 2 4 6 7 8 9 4 2 2 3 5 6 6 8 2 1 1 3
STABILITY B F F F F A A B A G G G G A A B B G
CEILING 18300 2700 None None None None None None None
STA PRES 28.75 28.72 28.70 28.63 28.64 28.64 28.66 28.65
Date 10/31Sun 11/01/26Mon 11/02/26Tue 11/03/26Wed 11/04/26
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 67 43 68 46 67 48 70 51 69
TEMP 65 59 47 43 65 59 49 47 65 59 51 49 68 61 53 51 67 61
DEWPT 45 46 44 42 44 47 47 47 52 52 51 49 55 55 53 51 57 57
RH 48 62 89 96 46 64 93100 63 78100100 63 81100100 70 87
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 0 0 5 30 30 20 10 20 40
RAIN SHWRS SC SC IS IS 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