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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Oct 12 2026
VAZ046-130800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
231 PM EDT Mon Oct 12 2026
Date 10/12/26 Tue 10/13/26 Wed 10/14/26 Thu
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 55 83 63 88 66
TEMP 77 67 61 58 56 56 73 81 82 71 67 65 63 63 79 86 87 77 71 69 67 66
DEWPT 61 65 61 58 56 56 63 65 66 65 63 63 61 61 67 68 70 69 67 66 65 64
MIN/MAX RH 100 55 92 55 95
RH 58 93100100100100 71 58 58 81 87 93 93 93 67 55 57 76 87 90 93 93
WIND DIR NW SW W W W W SW SW SW SW SW SW SW W W SW SW SW W W N NE
WIND SPD 4 2 2 2 3 3 4 5 6 5 5 5 5 5 6 6 6 5 4 3 4 6
CLOUDS FW FW FW FW CL CL FW CL CL CL CL CL CL CL CL FW FW FW FW FW SC SC
CLOUDS(%) 12 17 18 24 5 0 12 3 4 1 0 1 4 0 1 6 14 13 19 24 43 41
VSBY 10 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 0 0 5
MIX HGT 3 <1 <1 <1 <1 <1 1 3 3 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR NW SW W W W W W W SW SW SW SW SW SW W W W W
T WIND SPD 6 1 3 3 2 3 5 12 14 4 5 5 4 4 9 14 16 6
DISPERSION VP VP VP VP PR PR PR PR PR VP VP VP
ADI 25 1 2 2 1 4 9 51 56 2 3 3 2 5 22 58 49 3
MAX LVORI 2 8 10 10 10 9 3 1 1 5 6 6 6 6 3 1 1 3
STABILITY B G G G G B B B B F F F F B B B B F
CEILING None None None None None None None None None None
STA PRES 29.24 29.29 29.29 29.31 29.26 29.28 29.29 29.32 29.28
Date 10/15Fri 10/16/26Sat 10/17/26Sun 10/18/26Mon 10/19/26
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 62 83 48 61 37 61 40 67
TEMP 75 70 64 64 80 66 54 49 57 49 41 38 57 51 42 41 63 57
DEWPT 66 65 64 64 68 57 45 41 38 38 36 35 38 40 38 39 47 49
RH 74 84100100 67 73 71 74 49 66 82 89 49 66 86 92 56 75
WIND SPD <15 <15 15> <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B2 B1 SC SC SC FW FW FW FW FW CL FW FW FW FW FW
POP 12HR 10 20 20 5 5 0 0 0 0
RAIN SHWRS 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