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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EDT Fri Jul 3 2026
NCZ001-032000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
501 AM EDT Fri Jul 3 2026
Date Fri 07/03/26 Sat 07/04/26 Sun 07/05/26
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 86 67 86 66 83
TEMP 69 80 85 83 77 68 68 68 70 78 83 82 75 70 68 66 68 77 82 79 72
DEWPT 62 60 60 62 64 63 61 60 60 61 59 60 61 61 61 61 62 61 61 62 63
MAX/MIN RH 43 83 43 83 50
RH 78 51 43 49 64 84 78 76 71 56 44 47 62 73 78 84 81 58 49 56 73
WIND DIR NE E SE S S SW W NW NW SW S SW SW NW W NW NW SW S SW W
WIND SPD 3 4 5 3 3 3 4 5 5 2 4 4 4 5 5 5 4 3 4 3 5
CLOUDS FW FW SC B1 SC SC SC FW SC FW SC SC SC FW FW FW SC SC B2 B2 SC
CLOUDS(%) 10 16 28 55 37 33 31 23 28 10 50 47 43 18 15 18 45 45 73 73 44
VSBY 10 10 10 10 10 10 10 5 10 10 7 7 10 10 10 10 10 10 10 10 10
POP 12HR 30 5 30 10 60
RAIN SHWRS IS SC SC IS IS IS NM NM IS
TSTMS IS SC SC IS IS SC SC IS
MIX HGT <1 5 7 5 <1 <1 <1 <1 <1 5 6 4 <1 <1 <1 <1 <1 5 6 4 <1
T WIND DIR N E SE SE S NW NW NW NW N S W N W W NW NW S S W N
T WIND SPD 3 6 4 3 3 2 4 4 4 0 1 5 4 2 2 3 3 6 6 5 1
DISPERSION VP VP VP PR VP PR PR PR PR
ADI 3 40 40 20 2 1 2 2 4 0 8 31 3 1 1 2 3 43 30 26 1
MAX LVORI 4 1 1 2 3 5 5 4 4 3 2 1 3 3 4 5 5 1 1 2 4
STABILITY A A A B G G F F A A A A E F F F A A C B E
CEILING None None None None None None None None None 2300
STA PRES 26.87 26.82 26.83 26.80 26.82 26.79 26.76 26.75 26.73 26.74
Date Mon 07/06/26Tue 07/07/26Wed 07/08/26Thu 07/09/26
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 65 81 64 78 63 77 63 77
TEMP 66 66 79 70 66 64 76 69 65 64 73 70 65 64 74 70
DEWPT 63 63 64 64 63 63 64 63 62 62 63 62 62 62 63 63
RH 90 90 60 81 90 97 66 81 90 93 71 76 90 93 69 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B2 B1 SC B1 B2 SC SC B1 B2 SC SC B1 B2
POP 12HR 20 70 40 60 20 60 20 60
RAIN SHWRS IS SC NM SC SC NM IS SC NM IS IS SC NM
TSTMS IS IS NM SC IS SC IS IS SC IS 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