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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Wed Sep 30 2026
VAZ012-010800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
231 AM EDT Wed Sep 30 2026
Date 09/29/26 Wed 09/30/26 Thu 10/01/26 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 50 81 52 83 55
TEMP 51 51 69 77 78 64 59 56 54 54 72 79 80 66 60 58 56 57
DEWPT 49 49 56 53 52 55 54 52 50 49 56 54 53 56 55 54 53 54
MIN/MAX RH 99 39 88 37 91
RH 93 93 63 43 40 73 83 86 86 83 57 42 39 70 84 86 90 90
WIND DIR N N SW W W N SW SW W W W W SW SW SW SW SW W
WIND SPD 0 0 1 1 1 0 1 1 1 2 1 2 1 1 1 1 2 2
CLOUDS FW FW SC SC FW SC SC FW FW SC FW FW FW FW FW FW FW SC
CLOUDS(%) 18 17 29 42 17 40 30 14 14 43 10 20 23 21 19 17 24 28
VSBY 4 5 10 10 10 10 10 10 8 6 10 10 10 10 10 2 0 1
POP 12HR 0 0 0 0 0
Obvis PF PF
MIX HGT <1 <1 2 4 4 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1
T WIND DIR S SW SW SW SW S S S SW W W SW SW S S SW SW W
T WIND SPD 3 3 3 6 4 2 5 3 3 3 10 6 9 5 4 4 4 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 2 3 9 38 22 1 3 2 2 4 34 40 53 3 2 2 2 6
MAX LVORI 8 8 3 1 2 3 5 5 6 6 1 1 1 3 5 6 6 5
STABILITY G A A A A G G G G B A B A G G G G B
CEILING None None None None None None None None None
STA PRES 27.33 27.38 27.35 27.37 27.35 27.40 27.34 27.35 27.33
Date 10/02Sat 10/03/26Sun 10/04/26Mon 10/05/26Tue 10/06/26
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 83 58 73 53 68 49 67 37 64
TEMP 81 67 62 59 70 63 56 54 63 61 55 49 62 54 42 38 59 51
DEWPT 62 63 61 59 65 60 55 54 61 59 54 49 48 45 40 36 41 41
RH 53 87 97100 84 90 96100 93 93 96100 60 71 93 92 51 68
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B2 OV OV B2 OV B2 OV B2 B1 B1 SC FW FW FW FW
POP 12HR 30 70 90 70 70 20 0 0 0
RAIN SHWRS SC SC NM O O NM NM NM SC IS
TSTMS IS IS IS IS 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