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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sat Sep 5 2026
NCZ003-060800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Sat Sep 5 2026
Date 09/05/26 Sun 09/06/26 Mon 09/07/26 Tue
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 68 80 64 81 60
TEMP 73 70 69 69 75 78 76 71 68 67 65 64 71 77 80 74 67 63 61 62
DEWPT 70 69 69 69 70 70 69 67 65 63 63 62 64 63 62 61 60 60 60 60
MIN/MAX RH 98 76 94 55 99
RH 90 97100100 84 76 79 87 90 87 93 93 79 62 54 64 78 90 97 93
WIND DIR N NE NE NE NE E NE NE NE NE NE NE E E E E E E NE NE
WIND SPD 3 3 4 5 5 6 6 6 6 6 6 6 8 6 5 3 4 3 3 3
CLOUDS SC B1 SC SC B1 B2 B2 SC B1 B1 SC SC SC SC SC FW FW FW FW FW
CLOUDS(%) 48 59 41 37 54 71 76 42 59 59 38 27 42 44 26 20 22 10 19 11
VSBY 10 7 5 8 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 70 10 0 0
RAIN SHWRS IS SC NM
TSTMS IS SC SC
MIX HGT <1 <1 <1 <1 3 3 2 <1 <1 <1 1 1 3 5 6 <1
T WIND DIR N N N N NE E NE NE NE E E E E E SE N
T WIND SPD 3 3 2 3 8 6 11 13 13 10 9 8 12 9 4 1
DISPERSION VP VP VP PR PR PR PR VP VP VP VP
ADI 2 2 2 3 24 24 31 9 9 7 4 13 50 52 32 1
MAX LVORI 7 8 10 9 4 3 3 5 5 5 6 5 3 1 1 4
STABILITY F F E A C C C E E E F B B B A G
CEILING None None None 3300 None None None None None
STA PRES 28.81 28.82 28.87 28.86 28.92 28.98 29.05 29.05
Date 09/08Wed 09/09/26Thu 09/10/26Fri 09/11/26Sat 09/12/26
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 61 86 66 90 67 85 62 84
TEMP 79 75 64 63 84 78 68 67 88 80 70 67 83 76 65 63 81 76
DEWPT 61 61 59 60 64 64 62 62 66 67 65 63 63 63 60 59 63 64
RH 54 62 84 90 51 62 81 84 48 65 84 87 51 64 84 87 54 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW CL FW SC SC SC SC SC SC SC SC SC
POP 12HR 0 0 0 0 20 20 30 10 20
RAIN SHWRS IS IS IS SC IS
TSTMS 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