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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Wed Jul 8 2026
NCZ006-082000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
431 AM EDT Wed Jul 8 2026
Date Wed 07/08/26 Thu 07/09/26 Fri 07/10/26
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 91 70 93 70 95
TEMP 72 73 82 88 89 84 76 74 72 74 84 91 92 87 77 73 71 75 87 92 93 88
DEWPT 72 73 76 74 75 75 75 74 72 74 76 72 72 72 72 70 69 71 72 70 70 71
MAX/MIN RH 61 100 51 95 46
RH 100100 82 63 64 74 97100100100 77 54 52 61 85 90 93 87 61 49 47 57
WIND DIR N N NE NE E N N N N N W W W W N N W W W W W W
WIND SPD 0 1 2 2 2 0 0 0 0 0 3 6 6 1 0 0 1 2 5 6 6 2
CLOUDS B1 B1 B1 B1 B2 B1 B2 SC B1 B1 FW FW SC SC FW FW FW FW FW SC SC SC
CLOUDS(%) 57 65 51 64 71 64 78 49 61 57 25 20 29 45 25 11 14 9 12 50 50 44
VSBY 5 7 10 10 10 10 7 7 5 6 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 40 30 20 30
RAIN SHWRS SC SC SC SC IS IS SC SC
TSTMS SC SC SC SC IS IS SC SC
Obvis PF
MIX HGT <1 <1 3 5 3 <1 <1 <1 <1 <1 3 7 6 <1 <1 <1 <1 <1 5 7 5 <1
T WIND DIR N NE NE NE E E E E E E S W W W N E SW W W W SW SW
T WIND SPD 2 6 5 3 6 10 8 6 8 6 5 9 13 10 2 1 1 6 16 21 9 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 8 19 19 26 5 4 3 4 8 25 67 92 5 1 1 1 7 98166 53 5
MAX LVORI 10 8 3 2 2 3 6 9 9 8 3 1 1 3 5 7 8 5 1 1 1 3
STABILITY F B B B B F F F F B A B B F G G G A A B B F
CEILING None 5100 3200 500 None None None None None None
STA PRES 29.36 29.34 29.34 29.33 29.34 29.25 29.27 29.28 29.28 29.21
Date Sat 07/11/26Sun 07/12/26Mon 07/13/26Tue 07/14/26
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 71 91 67 85 65 86 65 91
TEMP 74 75 89 82 71 71 83 81 69 69 84 82 69 69 89 86
DEWPT 70 71 72 72 70 70 69 68 66 67 66 66 65 66 65 65
RH 87 87 57 72 97 97 63 65 90 93 55 58 87 90 45 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC FW FW SC
POP 12HR 10 50 50 50 40 30 20 10
RAIN SHWRS IS SC SC IS IS SC SC SC SC SC IS
TSTMS SC SC 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