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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
422 AM EDT Sat Aug 1 2026
VAZ024-012000-
RAWS 441631
37.63N 79.51W Elev. 865 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 88 68 83 69 86
TEMP 64 67 82 88 87 80 75 73 70 70 75 81 82 78 73 71 70 71 79 86 85 78
DEWPT 60 62 64 64 65 65 67 67 67 69 71 72 73 72 72 71 70 71 73 73 73 73
MAX/MIN RH 45 98 73 100 65
RH 87 84 55 45 48 60 76 81 90 97 87 74 74 82 97100100100 82 65 67 85
WIND DIR N N S S S SE SE SE SE SE SE SE SE SE S S N S S S S S
WIND SPD 0 0 3 6 6 5 4 3 2 2 2 4 4 2 1 1 0 1 2 4 3 1
WIND GUST 17 18 20 20 17 12
CLOUDS B1 B2 B2 OV OV B2 B2 B1 OV OV OV OV OV OV OV B2 B2 B2 B1 B2 B2 B1
CLOUDS(%) 66 80 85 94 89 76 78 69 92 92 90 89 90 88 88 82 78 73 63 79 79 55
VSBY 10 10 10 10 10 10 10 10 6 5 4 3 3 3 3 6 6 6 6 3 3 7
POP 12HR 10 70 80 80 70
RAIN SHWRS IS SC NM NM O NM O O O IS IS IS IS NM NM SC
TSTMS IS IS IS IS SC SC SC IS SC SC IS
MIX HGT <1 <1 3 6 5 1 <1 <1 <1 <1 2 3 3 <1
T WIND DIR E SE S S S S S S S SE S S S S
T WIND SPD 1 1 14 18 18 12 11 14 9 8 8 13 17 9
DISPERSION VP PR VP VP VP VP VP VP VP VP
ADI 1 1 54 82 76 8 8 10 4 9 19 46 51 4
MAX LVORI 6 4 1 1 1 2 3 4 5 6 4 3 3 5
STABILITY F A A C C E E E F B C C C F
CEILING 19400 4100 4100 2000 100 1200 100
STA PRES 28.46 28.41 28.40 28.39 28.40 28.38
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 67 86 68 88 68 89 68 90
TEMP 70 70 86 79 71 70 86 80 71 70 87 81 72 71 88 81
DEWPT 70 70 72 72 70 70 72 73 70 70 72 73 70 70 71 73
RH 100100 63 79 97100 63 79 97100 61 77 93 97 57 77
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B1 SC B1 B2 SC SC SC B1 B1 SC SC B1
POP 12HR 30 70 50 60 20 40 20 40
RAIN SHWRS SC SC NM SC NM IS SC IS SC
TSTMS IS SC IS 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