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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sun Jul 19 2026
NCZ003-200800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Sun Jul 19 2026
Date 07/19/26 Mon 07/20/26 Tue 07/21/26 Wed
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 67 83 67 87 69
TEMP 75 71 69 70 77 81 81 77 72 70 69 71 80 84 86 81 75 72 70 72
DEWPT 70 69 68 69 72 73 73 73 71 70 69 71 75 75 74 74 72 70 69 71
MIN/MAX RH 100 73 100 70 98
RH 84 93 97 97 85 77 77 87 97100100100 85 74 68 79 90 93 97 97
WIND DIR NW N N N SE S S N N N N SW SW SW SW SW SW SW SW SW
WIND SPD 3 0 0 0 1 4 3 0 0 0 0 1 4 6 6 4 3 2 2 4
WIND GUST 14
CLOUDS B1 SC B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2 B2 B1 B2 B2 B2 B2
CLOUDS(%) 55 47 65 55 73 73 78 86 73 74 78 60 66 82 82 59 70 73 73 87
VSBY 10 10 7 7 10 10 10 10 8 8 7 5 10 10 10 10
POP 12HR 10 60 60 70 60
RAIN SHWRS IS NM NM NM NM IS SC SC NM NM SC SC NM NM O
TSTMS SC SC SC IS IS SC NM SC SC SC IS IS IS
MIX HGT <1 <1 <1 <1 3 3 3 <1 <1 <1 <1 <1 3 3 2 <1
T WIND DIR N N N N S SW S S SE S SW SW W W SW S
T WIND SPD 11 9 5 4 2 5 5 6 4 3 3 4 11 11 9 6
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 5 4 3 5 7 19 19 3 2 2 2 5 34 46 23 5
MAX LVORI 6 6 8 7 4 3 3 6 8 10 10 9 4 3 3 4
STABILITY G F F B B C B F F F F B C B C E
CEILING None 4000 3700 2800 2800 500 2400 5400 3600
STA PRES 28.06 28.08 28.11 28.07 28.07 28.06 28.08 28.05
Date 07/22Thu 07/23/26Fri 07/24/26Sat 07/25/26Sun 07/26/26
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 85 62 79 61 79 63 79 64 83
TEMP 82 80 68 65 76 74 64 65 77 74 67 67 76 75 67 68 81 77
DEWPT 73 71 64 63 66 67 61 63 66 67 63 65 69 70 65 67 70 71
RH 74 74 87 93 71 79 90 93 69 79 87 93 79 84 93 97 69 82
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 OV B1 B1 SC SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 SC B1
POP 12HR 80 40 20 30 40 40 60 30 30
RAIN SHWRS O O SC SC IS IS SC IS SC SC SC SC NM SC IS IS SC
TSTMS SC NM IS IS SC 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