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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat Aug 1 2026
NCZ003-012000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 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 81 67 78 67 81
TEMP 76 80 77 74 71 70 69 69 73 75 77 75 72 70 68 70 75 78 80 76
DEWPT 69 69 70 70 69 68 69 69 73 74 75 74 72 70 68 70 74 73 74 74
MAX/MIN RH 71 100 95 100 81
RH 79 69 79 87 93 93100100100 97 94 97100100100100 97 85 82 94
WIND DIR S S S SE SE SE SE SE SE S S S S N N N S S S S
WIND SPD 5 8 5 3 3 3 3 3 4 5 4 2 1 0 0 0 2 5 4 1
WIND GUST 13
CLOUDS OV B2 B2 B2 OV OV OV OV OV OV OV OV B2 B2 B2 B2 B1 B2 B2 B1
CLOUDS(%) 91 85 76 76 91 95 92 92 95 90 98 90 86 83 78 74 61 80 80 53
VSBY 10 10 10 10 7 2 1 2 4 3 3 3 3 7 7 7 7 3 3 7
POP 12HR 50 80 100 80 70
RAIN SHWRS IS SC NM SC O SC NM NM NM O O O IS IS NM NM SC
TSTMS IS SC SC IS IS SC SC SC SC IS IS SC SC SC
MIX HGT 2 4 3 <1 <1 <1 <1 <1 2 2 2 <1
T WIND DIR S S S S S SE S S S S S S
T WIND SPD 14 19 20 14 17 16 10 8 10 14 16 12
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 39 69 72 10 12 11 7 6 20 38 38 6
MAX LVORI 3 1 1 4 4 5 8 8 5 4 4 9
STABILITY C C C E E E E C C C C F
CEILING 10900 2100 2600 400 400 400 400
STA PRES 28.08 28.02 28.00 28.00 28.01 28.00
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 66 81 66 82 67 83 67 84
TEMP 68 69 78 76 69 69 79 77 70 70 80 77 70 70 82 78
DEWPT 68 69 73 73 69 69 73 74 69 70 73 74 70 70 74 75
RH 100100 85 90100100 82 90 97100 79 90100100 77 91
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B1 SC B1 B2 SC B1 B1 B2 B1 SC SC B1
POP 12HR 30 70 40 60 20 60 20 40
RAIN SHWRS SC IS SC NM SC IS NM IS IS NM IS SC
TSTMS SC 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