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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Aug 24 2026
NCZ003-250800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
231 PM EDT Mon Aug 24 2026
Date 08/24/26 Tue 08/25/26 Wed 08/26/26 Thu
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 59 84 63 85 67
TEMP 84 77 68 63 60 60 72 81 83 76 68 65 63 65 75 82 84 77 71 69 68 68
DEWPT 59 58 54 53 51 52 54 56 58 59 59 58 57 59 65 67 68 67 67 68 67 68
MIN/MAX RH 75 42 83 58 100
RH 43 52 61 70 72 75 53 42 43 56 73 78 81 81 71 61 59 71 87 97 97100
WIND DIR NW N N N N N NE S SW S NE N N NE SE S S SW SW SW SW SW
WIND SPD 4 4 6 5 4 4 3 2 2 1 2 2 2 3 3 5 4 1 2 2 1 2
CLOUDS SC FW FW FW FW SC SC FW CL FW FW SC SC FW SC B1 B1 B2 B2 B1 B1 B1
CLOUDS(%) 30 19 16 8 17 38 34 15 4 17 18 30 27 23 28 57 57 70 70 66 61 63
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6 3 10 3 5
POP 12HR 0 0 0 40 60
RAIN SHWRS SC SC NM NM IS IS SC
TSTMS SC SC SC IS
MIX HGT 7 <1 <1 <1 <1 <1 2 5 5 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR NW N N NE N N NE NW NW SW NW N N N S S S SW
T WIND SPD 3 4 8 8 5 4 6 4 1 1 2 2 2 1 8 9 11 6
DISPERSION VP PR PR VP VP VP VP VP VP VP VP VP
ADI 28 2 4 4 3 4 21 28 8 1 1 1 1 1 29 39 47 3
MAX LVORI 2 2 3 3 3 4 2 2 2 3 3 4 5 5 3 1 1 3
STABILITY A F F F F A A A A G G G G A A C C F
CEILING None None None None None None None None 2900 2100
STA PRES 28.93 29.0 29.03 29.06 29.01 29.04 29.04 29.05 28.99
Date 08/27Fri 08/28/26Sat 08/29/26Sun 08/30/26Mon 08/31/26
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 84 67 85 67 84 67 85 68 88
TEMP 82 76 68 68 82 76 68 68 81 77 69 69 83 78 70 70 86 80
DEWPT 71 70 68 68 70 69 67 67 69 69 68 68 70 69 68 68 69 69
RH 69 82100100 67 79 97 97 67 76 97 97 65 74 93 93 57 69
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B2 B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC SC FW SC
POP 12HR 70 30 40 20 30 20 20 5 10
RAIN SHWRS SC NM SC SC IS IS SC IS IS IS
TSTMS IS SC IS 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
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