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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Fri Jul 3 2026
NCZ006-040800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
501 PM EDT Fri Jul 3 2026
Date 07/03/26 Sat 07/04/26 Sun 07/05/26 Mon
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 76 104 74 102 74
TEMP 93 83 80 77 80 95103102 94 84 79 76 78 93101102 95 83 78 75 78
DEWPT 69 69 67 67 70 71 67 65 66 67 66 67 69 70 65 63 64 66 68 69 71
MIN/MAX RH 75 30 77 29 85
RH 46 63 65 71 72 46 32 30 40 57 64 74 74 47 31 28 36 57 71 82 79
WIND DIR E N SW SW N W W SW SE S SW SW SW SW S S S S S S N
WIND SPD 2 0 1 1 0 1 3 4 2 2 1 1 1 3 5 5 2 2 1 1 0
CLOUDS FW FW FW FW FW FW SC FW SC FW FW FW CL FW FW FW SC SC FW FW FW
CLOUDS(%) 9 8 12 17 11 6 30 21 35 21 9 6 1 13 22 21 33 33 22 23 21
VSBY 10 10 10 10 10 10 7 10 10 10 10 10 10 10 10 10 7 7 10 10 10
POP 12HR 0 10 10 5 20
RAIN SHWRS IS IS
TSTMS IS
MIX HGT <1 <1 <1 <1 <1 4 9 6 <1 <1 <1 <1 <1 5 9 10 <1
T WIND DIR SW S SW SW W W SW SW SW S SW SW NW N S S SE
T WIND SPD 3 4 4 4 6 5 5 6 10 5 5 3 4 2 4 8 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 2 7 28 59 54 5 3 3 2 6 13 47 88 2
MAX LVORI 2 3 3 3 3 2 1 1 2 3 3 3 3 2 1 1 2
STABILITY G G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 29.37 29.36 29.37 29.29 29.29 29.32 29.33 29.27
Date 07/06Tue 07/07/26Wed 07/08/26Thu 07/09/26Fri 07/10/26
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 99 72 92 70 91 71 92 72 94
TEMP 98 86 75 75 91 85 74 74 89 86 74 74 90 87 74 75 93 87
DEWPT 68 72 72 73 71 71 70 71 69 69 69 71 69 70 70 72 70 71
RH 38 63 90 94 52 63 87 90 52 57 84 90 50 57 87 90 47 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B2 B2 SC SC B1 B1 SC SC B1 SC SC SC B1 B1 SC SC B1
POP 12HR 60 60 40 50 30 20 30 30 30
RAIN SHWRS NM NM SC SC IS SC IS SC SC SC
TSTMS NM SC SC SC SC IS SC SC 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
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