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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 AM EDT Sat Sep 5 2026
VAZ018-052000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1031 AM EDT Sat Sep 5 2026
Date Sat 09/05/26 Sun 09/06/26 Mon 09/07/26
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 87 66 77 62 78
TEMP 79 82 85 74 71 69 68 67 71 74 73 68 66 65 63 62 71 77 75 68
DEWPT 67 68 67 69 68 67 66 66 70 69 68 64 61 60 60 60 64 64 64 60
MAX/MIN RH 49 100 80 93 64
RH 67 63 55 84 90 93 93 97 97 84 84 87 84 84 90 93 79 64 69 76
WIND DIR NW NW NW NW NW N NE NE E E E E E E E E E SE E E
WIND SPD 6 6 6 3 2 1 1 2 3 4 4 2 3 3 3 3 4 4 4 2
WIND GUST 19 19 19 13 13
CLOUDS B1 B1 SC SC SC B1 B2 B2 B2 B1 B2 B2 B1 B1 SC B1 B1 B1 SC SC
CLOUDS(%) 65 66 46 43 43 69 73 78 71 69 74 85 68 63 49 55 54 51 33 28
VSBY 10 10 10 10 7 3 1 2 8 9 9 10 10 10 10 10 10 10 10 10
POP 12HR 40 50 80 20 5
RAIN SHWRS IS IS IS IS SC SC SC NM SC NM IS IS
TSTMS IS IS IS IS IS SC IS
MIX HGT 3 5 4 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 3 5 5 1
T WIND DIR W NW NW NW N NE E E E NE E E E E NE NE E E SE E
T WIND SPD 5 21 20 10 4 6 5 8 1 2 8 10 9 9 4 3 10 6 8 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 17129 73 5 2 3 3 9 3 7 24 5 4 4 2 4 35 28 50 3
MAX LVORI 2 1 1 5 6 6 8 8 9 4 4 5 5 5 6 6 3 3 1 4
STABILITY C B C F F F F B B C C F F F F B C C A G
CEILING None None 1600 700 700 2500 None None None
STA PRES 27.69 27.71 27.72 27.76 27.76 27.84 27.89 27.95 27.95
Date Tue 09/08/26Wed 09/09/26Thu 09/10/26Fri 09/11/26
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 60 82 61 87 67 88 64 83
TEMP 62 61 81 71 64 63 85 76 70 69 85 76 68 65 81 71
DEWPT 57 58 64 60 57 57 65 63 61 62 68 64 62 61 62 59
RH 84 90 56 68 78 81 51 64 73 78 57 66 81 87 53 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC FW FW FW SC FW FW FW SC B1 SC SC SC
POP 12HR 0 0 0 0 0 20 30 20
RAIN SHWRS IS SC SC IS
TSTMS 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