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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Tue Jul 7 2026
NCZ003-080800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
231 PM EDT Tue Jul 7 2026
Date 07/07/26 Wed 07/08/26 Thu 07/09/26 Fri
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 66 87 66 88 66
TEMP 82 79 73 70 68 71 83 84 82 79 72 70 68 70 81 84 86 82 72 68 67 72
DEWPT 75 74 72 69 68 70 74 74 74 74 72 69 67 70 73 72 72 72 69 67 66 68
MIN/MAX RH 100 67 100 64 97
RH 79 85 97 97100 97 74 72 77 85100 97 97100 77 67 63 72 90 97 97 87
WIND DIR N N N N N NW NW S SW N N N N N W W W W W NW W W
WIND SPD 0 0 0 0 0 1 1 2 1 0 0 0 0 0 2 5 4 1 1 1 1 2
CLOUDS B2 B1 B1 SC FW FW FW B2 B2 B1 B1 SC B1 SC SC B2 B2 SC FW FW FW FW
CLOUDS(%) 70 65 56 33 14 20 6 80 76 66 66 38 54 40 40 71 71 29 19 10 6 16
VSBY 10 10 10 10 8 10 10 10 10 10 10 7 8 8 10 10 10 10 10 10 9 10
POP 12HR 20 70 60 60 0
RAIN SHWRS NM IS NM NM SC SC IS IS NM NM
TSTMS NM IS SC SC SC IS IS SC SC
MIX HGT 3 <1 <1 <1 <1 <1 4 5 2 <1 <1 <1 <1 <1 4 5 4 <1
T WIND DIR SW W N N N N N SW S S SE W N NW NW W W W
T WIND SPD 4 2 8 5 4 6 4 1 4 4 3 4 2 6 11 10 12 10
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 17 1 4 3 2 7 23 6 13 2 2 2 1 7 55 43 49 5
MAX LVORI 3 5 8 8 9 6 3 3 4 5 8 8 10 8 3 1 1 3
STABILITY B F F G G A A B B F F G F A A C C G
CEILING 3200 None None None 3700 None None None 4200 None
STA PRES 28.10 28.13 28.15 28.17 28.13 28.12 28.10 28.11 28.07
Date 07/10Sat 07/11/26Sun 07/12/26Mon 07/13/26Tue 07/14/26
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 89 68 85 65 81 64 83 63 88
TEMP 87 82 71 71 82 79 68 70 79 76 67 68 80 77 66 68 86 82
DEWPT 70 71 67 69 72 71 67 68 70 70 66 67 69 69 64 65 66 69
RH 57 69 87 93 72 77 97 93 74 82 97 97 69 76 93 90 51 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 SC SC FW FW
POP 12HR 20 20 60 30 70 40 40 20 10
RAIN SHWRS IS IS NM SC SC SC SC NM SC IS SC SC IS
TSTMS IS IS SC SC IS SC SC SC IS
$$
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