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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
422 AM EDT Sat Aug 1 2026
NCZ006-012000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
422 AM EDT Sat Aug 1 2026
Date Sat 08/01/26 Sun 08/02/26 Mon 08/03/26
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 70 85 70 85
TEMP 66 69 81 86 85 81 76 74 72 72 78 82 81 77 74 73 71 73 79 84 82 78
DEWPT 63 67 71 68 67 67 67 67 69 71 74 75 75 75 73 73 71 73 76 76 75 75
MAX/MIN RH 53 98 75 100 76
RH 90 93 72 55 55 63 74 79 90 97 88 79 82 94 97100100100 91 77 79 91
WIND DIR S S S S S SE S SE SE SE SE S S S S S S S S S S S
WIND SPD 1 1 5 6 8 5 6 3 3 3 5 5 5 3 2 2 2 3 4 6 5 2
CLOUDS SC B2 B1 B2 B2 B2 B2 B1 B2 B2 B2 B2 B1 B2 B2 B1 B2 B2 B1 B2 B2 B1
CLOUDS(%) 40 73 68 77 84 81 75 53 76 77 85 80 65 84 84 68 71 72 60 76 76 56
VSBY 10 10 10 10 10 10 10 10 9 6 9 3 3 3 3 6 6 6 6 3 3 7
POP 12HR 5 30 80 80 60
RAIN SHWRS SC SC SC SC IS SC O O SC SC SC SC NM NM SC
TSTMS IS IS IS IS SC SC IS IS IS SC SC SC
MIX HGT <1 <1 3 6 6 <1 <1 <1 <1 <1 3 4 2 <1
T WIND DIR S S S S S SE SE SE SE S S S W S
T WIND SPD 4 9 16 16 16 8 9 6 6 11 13 14 9 4
DISPERSION VP PR PR VP VP VP VP VP VP VP
ADI 2 9 54107 70 5 6 5 3 15 40 54 22 2
MAX LVORI 6 5 1 1 1 3 3 4 6 5 4 3 4 6
STABILITY F A C B C E E E F B C C C F
CEILING 5800 11200 14600 1200 900 3700 7900
STA PRES 29.33 29.27 29.26 29.25 29.26 29.25
Date Tue 08/04/26Wed 08/05/26Thu 08/06/26Fri 08/07/26
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 69 85 69 86 69 87 70 88
TEMP 72 72 84 80 72 71 84 80 73 72 84 80 73 72 85 81
DEWPT 72 72 75 74 72 71 75 74 72 72 75 75 72 72 75 75
RH 100100 74 82100100 74 82 97100 74 85 97100 72 82
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B1 SC B1 B1 B1 SC B1 B1 B1 SC SC B1
POP 12HR 30 60 30 50 20 40 20 30
RAIN SHWRS SC SC NM SC SC IS IS SC IS SC
TSTMS SC IS SC SC SC IS SC IS SC
$$
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