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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Oct 27 2026
VAZ024-272000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Tue Oct 27 2026
Date Tue 10/27/26 Wed 10/28/26 Thu 10/29/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 74 44 69 46 75
TEMP 61 72 72 59 52 49 46 45 57 68 68 58 52 50 48 46 59 72 74 63
DEWPT 45 47 48 48 48 49 46 45 50 51 51 51 50 50 48 46 56 55 52 54
MAX/MIN RH 39 100 53 100 45
RH 56 41 42 67 86100100100 77 54 54 77 93100100100 90 55 46 72
WIND DIR N E E N N N N N N SE SE N N N N N N W S N
WIND SPD 0 3 3 0 0 0 0 0 0 2 2 0 0 0 0 0 0 2 1 0
CLOUDS CL FW FW FW FW FW B1 B1 B1 B2 B2 B1 B1 B1 B1 SC FW FW CL CL
CLOUDS(%) 2 12 8 8 21 21 54 68 69 82 76 68 59 61 59 47 24 8 1 1
VSBY 10 10 10 10 10 7 7 7 7 10
POP 12HR 0 0 0 0 0
MIX HGT 2 4 3 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR E E E E E E E E SE S SE SE SE S SW W W SW SW SW
T WIND SPD 10 8 5 3 3 3 2 2 3 4 5 5 4 3 1 2 9 6 5 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 21 37 22 2 2 2 1 2 9 15 16 3 2 2 1 2 21 26 21 1
MAX LVORI 2 1 2 3 6 10 10 10 4 2 2 4 6 10 10 9 4 2 2 3
STABILITY A B B G G G F C C C C F F F F A A B A G
CEILING None None None None 1300 2500 1600 None None None
STA PRES 28.79 28.78 28.81 28.84 28.87 28.82 28.83 28.80 28.79 28.71
Date Fri 10/30/26Sat 10/31/26Sun 11/01/26Mon 11/02/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 45 80 49 72 49 68 53 72
TEMP 50 46 78 66 54 50 70 63 53 50 65 62 57 55 69 65
DEWPT 50 46 52 53 52 50 44 46 52 50 57 58 57 55 61 59
RH 100100 40 63 93100 39 54 96100 75 87100100 76 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW SC B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR 0 0 0 0 10 50 60 30
RAIN SHWRS SC SC NM SC SC IS
$$
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