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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Sep 25 2026
VAZ018-252000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Fri Sep 25 2026
Date Fri 09/25/26 Sat 09/26/26 Sun 09/27/26
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 45 77 48 76
TEMP 60 72 73 56 51 49 46 46 68 77 74 58 54 52 50 49 65 73 71 59
DEWPT 36 36 36 37 40 40 40 40 43 43 45 46 47 47 46 45 49 49 50 49
MAX/MIN RH 25 79 31 90 42
RH 41 27 26 49 66 71 79 79 40 30 35 64 77 83 86 86 56 43 47 69
WIND DIR N NE NE N N NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
WIND SPD 4 5 5 4 4 4 4 4 4 5 8 8 5 5 6 8 9 9 9 8
WIND GUST 17 16 16 14 14 20 23 18 16 19 25 26 26 26 23
CLOUDS CL CL CL FW CL CL CL FW FW CL FW FW FW FW CL FW FW FW SC SC
CLOUDS(%) 3 3 2 7 3 4 1 7 14 2 18 10 8 9 4 11 11 24 28 34
VSBY 10 10 10 10 10 9 9 6 9 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 2 4 4 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 1 3 4 4 1
T WIND DIR NW NE N NW NW NW NW NW NW N NW NW NW NW NW NW NW NW NW NW
T WIND SPD 8 12 14 5 6 5 5 6 10 16 20 11 11 9 12 17 28 25 24 24
DISPERSION VP VP VP VP PR PR PR PR PR
ADI 21 58 73 3 3 3 3 7 27 79106 8 5 4 6 25 88 89 86 16
MAX LVORI 2 1 1 2 3 3 4 4 2 1 1 3 4 5 5 4 1 1 1 3
STABILITY B B B F F F F B B B B E F F F B C C C E
CEILING None None None None None None None None None None
STA PRES 27.90 27.83 27.84 27.78 27.78 27.73 27.73 27.67 27.65 27.64
Date Mon 09/28/26Tue 09/29/26Wed 09/30/26Thu 10/01/26
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 52 75 52 79 54 82 60 81
TEMP 56 53 74 63 55 53 76 65 58 55 79 70 63 61 78 69
DEWPT 50 50 58 54 52 51 57 55 53 52 59 58 57 57 64 63
RH 80 89 57 72 90 93 52 70 83 90 50 66 81 87 62 81
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC FW FW FW FW FW SC SC SC SC B1 B1
POP 12HR 0 0 0 0 0 0 10 20
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