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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1031 PM EDT Sat Sep 5 2026
VAZ024-060800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
1031 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 65 81 58 83 57
TEMP 70 68 67 66 72 77 78 72 67 63 60 60 76 82 80 72 65 60 57 59
DEWPT 69 68 67 66 68 67 65 63 62 61 59 60 63 62 61 61 59 59 57 58
MIN/MAX RH 100 62 100 49 100
RH 97100100100 87 71 64 73 84 93 96100 64 51 52 68 81 96100 96
WIND DIR N N N NE NE E E E NE NE N N E E E E N N N N
WIND SPD 0 0 1 2 3 4 3 2 1 1 1 1 2 4 4 1 0 0 0 0
CLOUDS B1 B2 B2 B1 B2 B2 B1 SC B1 SC SC FW FW SC FW FW FW FW FW FW
CLOUDS(%) 62 71 72 69 87 75 69 44 51 35 37 20 25 38 20 14 16 15 11 15
VSBY 10 6 2 3 8 7 10 10 6 6 5 6 10 10 10 10 10 10 10
POP 12HR 60 40 0 0 0
RAIN SHWRS SC SC SC SC SC
TSTMS IS
Obvis PF PF PF
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR NE NE NE NE NE NE NE NE NE E E NE E E E E
T WIND SPD 5 2 4 8 11 11 12 6 4 6 6 5 11 5 4 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 1 2 10 24 36 33 3 2 3 3 6 59 40 32 2
MAX LVORI 9 10 9 7 4 3 1 3 5 6 9 9 1 1 1 3
STABILITY F F F B B C B F F G G A A A A G
CEILING 1500 1100 2200 None None None None None
STA PRES 28.41 28.47 28.48 28.53 28.58 28.64 28.63
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 86 58 91 65 93 63 86 57 85
TEMP 83 75 63 61 89 79 68 67 91 81 68 64 83 75 62 59 83 75
DEWPT 61 60 58 58 64 63 62 62 67 65 63 62 62 60 58 57 61 61
RH 47 60 84 90 44 58 81 84 45 58 84 93 49 60 87 93 47 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC FW FW FW FW FW FW FW SC SC B1 SC SC FW SC SC SC
POP 12HR 0 0 0 0 10 20 20 10 10
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