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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Jul 5 2026
NCZ003-052000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Sun Jul 5 2026
Date Sun 07/05/26 Mon 07/06/26 Tue 07/07/26
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 92 67 88
TEMP 85 86 83 80 74 71 69 73 86 90 87 81 74 70 68 71 81 84 87 82
DEWPT 70 69 70 69 68 68 68 70 73 72 73 73 71 69 68 70 73 72 72 72
MAX/MIN RH 54 97 54 100 62
RH 61 57 65 69 82 90 97 90 65 56 63 77 90 97100 97 77 67 61 72
WIND DIR N W W N N N N N N SW W N N N N N W W W N
WIND SPD 0 3 2 0 0 0 0 0 0 3 2 0 0 0 0 0 1 3 2 0
CLOUDS FW B2 B1 B1 SC FW FW SC SC B1 B2 B1 B1 SC SC B1 B1 B2 B2 B1
CLOUDS(%) 19 76 64 53 37 21 22 33 36 55 82 66 66 50 41 59 59 83 83 55
VSBY 10 10 10 10 10 8 6 10 10 10 9 10 10 4 3 7 10 10 10 10
POP 12HR 60 20 80 50 70
RAIN SHWRS NM SC IS SC NM SC SC SC SC NM NM SC
TSTMS NM SC IS SC NM SC IS IS SC SC IS
MIX HGT 4 5 2 <1 <1 <1 <1 <1 4 5 1 <1 <1 <1 <1 <1 4 4 3 <1
T WIND DIR W SW W NE N NW NW NW SW SW W W SW NW NW NW W W W NW
T WIND SPD 5 8 8 2 1 3 3 2 6 9 10 4 3 3 4 9 17 12 11 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 27 43 22 1 1 2 2 2 32 54 17 2 2 2 2 10 79 54 46 5
MAX LVORI 2 1 3 3 6 7 8 6 3 1 2 4 7 8 9 6 3 1 1 3
STABILITY A B B F G G G A A B B F F F F B B B B F
CEILING None 4500 None None None 3600 6300 None 2900 3300
STA PRES 28.08 28.03 28.04 28.05 28.07 28.05 28.06 28.07 28.10 28.06
Date Wed 07/08/26Thu 07/09/26Fri 07/10/26Sat 07/11/26
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 88 66 90 68 90 68 88
TEMP 69 70 85 82 69 71 87 83 70 72 86 84 71 72 85 82
DEWPT 67 68 69 70 65 67 69 71 66 68 69 70 67 68 69 70
RH 93 93 59 67 87 87 55 67 87 87 57 63 87 87 59 67
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 SC FW SC B1 SC FW FW SC SC SC SC B1
POP 12HR 30 40 10 30 5 30 20 50
RAIN SHWRS SC IS SC IS SC SC IS IS IS SC
TSTMS IS IS SC IS SC 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