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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sun Aug 23 2026
VAZ018-240800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 PM EDT Sun Aug 23 2026
Date 08/23/26 Mon 08/24/26 Tue 08/25/26 Wed
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 56 79 53 83 59
TEMP 67 61 59 58 59 70 76 74 65 59 56 54 56 71 78 81 72 63 60 59 61
DEWPT 51 50 50 51 53 56 53 51 51 50 50 49 50 54 53 52 54 53 53 53 54
MIN/MAX RH 78 40 85 37 79
RH 56 67 72 77 80 61 45 44 60 72 80 83 80 55 42 37 53 70 78 80 78
WIND DIR NW W W W W W W NW NW NW NW NW NW NW W W NW NW N N N
WIND SPD 3 2 3 3 3 6 6 6 4 2 2 2 2 2 2 3 2 1 1 1 1
WIND GUST 13 13 18 18 17 14
CLOUDS CL FW SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC
CLOUDS(%) 2 16 32 7 8 7 8 13 11 10 24 9 18 10 6 6 13 23 19 13 26
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 <1 <1 <1 4 5 5 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR W W W W W W W NW NW NW NW NW W N NW SW SE
T WIND SPD 11 3 3 3 6 19 16 12 6 4 3 4 2 5 4 3 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 5 2 2 2 7103100 74 3 2 2 2 2 24 29 24 1
MAX LVORI 3 3 3 4 4 1 1 1 3 3 4 5 5 2 2 2 2
STABILITY G G G G A B B B F G G G A A A A G
CEILING None None None None None None None None None
STA PRES 27.79 27.79 27.83 27.82 27.87 27.88 27.89 27.84
Date 08/26Thu 08/27/26Fri 08/28/26Sat 08/29/26Sun 08/30/26
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 65 85 65 85 64 84 65 85
TEMP 85 74 66 66 81 73 66 66 83 74 65 65 82 73 67 66 82 75
DEWPT 63 62 62 63 68 67 64 64 67 64 62 62 66 64 62 64 67 66
RH 48 66 87 90 65 81 93 93 59 71 90 90 58 73 84 93 61 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC B1 B2 SC SC SC SC FW FW FW SC SC SC SC SC
POP 12HR 10 30 70 20 10 0 20 20 20
RAIN SHWRS SC SC NM IS IS IS IS
TSTMS SC 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