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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 AM EDT Sat Jul 4 2026
NCZ003-042000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
501 AM EDT Sat Jul 4 2026
Date Sat 07/04/26 Sun 07/05/26 Mon 07/06/26
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 97 71 97 69 92
TEMP 77 93 97 94 92 80 75 72 76 91 96 93 85 76 72 69 74 86 91 87 81
DEWPT 68 71 66 65 66 64 64 64 67 69 66 67 69 69 67 67 69 72 72 73 73
MAX/MIN RH 37 80 38 91 54
RH 74 49 36 39 43 58 69 76 74 49 38 43 59 79 84 93 84 63 54 63 77
WIND DIR N N S SW SW N N N N S S W W N N N N N S W N
WIND SPD 0 0 4 4 2 0 0 0 0 1 4 4 1 0 0 0 0 0 4 3 0
CLOUDS FW CL FW SC SC SC FW FW FW FW SC B1 SC SC SC SC B1 B1 B2 B2 B2
CLOUDS(%) 10 4 14 36 31 27 12 11 18 14 40 65 48 48 45 28 51 51 87 87 71
VSBY 9 10 10 10 10 10 10 10 10 10 10 10 10 10 6 6 10 10 10 10 10
POP 12HR 20 10 50 20 80
RAIN SHWRS IS IS SC IS IS SC SC O O NM
TSTMS IS IS SC IS IS IS SC NM SC
MIX HGT <1 5 8 7 <1 <1 <1 <1 <1 5 7 4 <1 <1 <1 <1 <1 4 6 3 <1
T WIND DIR NW E S S SW W NW N N SW S SW W N NE N E S S SW NW
T WIND SPD 5 2 3 8 10 3 4 5 3 5 6 8 4 2 2 3 2 8 11 10 12
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 6 15 32 67 5 2 2 3 3 33 58 31 2 1 1 2 2 35 52 33 6
MAX LVORI 4 2 1 1 2 3 3 4 4 1 1 1 3 4 6 7 6 1 1 1 4
STABILITY A A A A G G G G A A A C F F F G B B C B F
CEILING None None None None None 3700 None None None 2400
STA PRES 28.18 28.11 28.10 28.09 28.11 28.07 28.09 28.11 28.13 28.10
Date Tue 07/07/26Wed 07/08/26Thu 07/09/26Fri 07/10/26
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 88 66 88 67 89 67 91
TEMP 70 72 85 82 70 71 85 82 70 71 86 83 70 72 87 84
DEWPT 69 70 72 72 68 69 70 71 67 69 71 71 67 69 71 71
RH 97 93 65 72 93 93 61 69 90 93 61 67 90 90 59 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 SC B1 B2 B1 SC SC B1 SC SC SC B1 SC SC SC B1
POP 12HR 60 70 20 40 20 40 10 40
RAIN SHWRS NM SC NM IS IS SC IS IS SC IS SC
TSTMS SC IS SC IS IS SC IS 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