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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sat Jul 18 2026
VAZ018-190800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 PM EDT Sat Jul 18 2026
Date 07/18/26 Sun 07/19/26 Mon 07/20/26 Tue
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 70 85 66 85 68
TEMP 73 72 72 73 79 83 83 76 71 68 67 68 79 84 82 74 71 70 69 71
DEWPT 69 69 69 69 72 71 69 67 65 64 64 65 68 68 69 69 67 67 67 68
MIN/MAX RH 92 62 91 59 94
RH 87 90 90 87 79 67 63 74 81 87 90 90 69 59 65 84 87 90 93 90
WIND DIR W W W NW NW NW NW NW NW N N NE SE S S S S SW SW SW
WIND SPD 5 6 5 6 5 5 5 3 2 1 0 1 2 3 4 2 2 1 2 3
WIND GUST 23 24 24 23 18 16
CLOUDS SC B1 B1 B1 B1 B1 SC SC CL FW SC B1 SC B1 B1 B1 B1 B1 B2 B2
CLOUDS(%) 34 60 55 52 52 51 45 29 1 12 43 69 40 69 69 57 57 68 73 75
VSBY 7 7 7 5 9 9 9 7 7 10 10 7 7 6 6 7 7 10 10
POP 12HR 10 20 10 50 40
RAIN SHWRS IS IS IS IS SC SC SC SC IS IS SC
TSTMS IS IS SC IS
MIX HGT <1 <1 <1 1 3 5 5 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR W W W W W W NW NW N NE E SE SE SW S S
T WIND SPD 13 10 13 12 12 10 11 12 3 3 8 10 8 6 5 6
DISPERSION PR PR PR VP VP VP VP VP VP VP VP
ADI 9 7 9 24 40 42 66 6 2 2 4 11 31 34 21 3
MAX LVORI 5 5 5 4 3 1 1 3 5 6 6 5 3 1 2 5
STABILITY E E E B C C A G G G F B A B C F
CEILING None 900 None None None None None 2000 1500
STA PRES 27.70 27.68 27.71 27.69 27.72 27.75 27.78 27.74
Date 07/21Wed 07/22/26Thu 07/23/26Fri 07/24/26Sat 07/25/26
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 88 69 82 60 79 59 81 63 84
TEMP 86 78 73 70 80 73 64 62 77 71 62 62 79 73 65 66 81 75
DEWPT 72 70 69 69 68 64 60 58 60 60 57 58 63 63 60 62 66 66
RH 63 76 87 97 67 73 87 87 56 68 84 87 58 71 84 87 60 74
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 OV B2 B1 B1 FW FW SC SC FW FW SC SC SC SC B1 B1
POP 12HR 80 90 40 20 10 10 10 10 30
RAIN SHWRS SC O O NM SC SC IS IS IS SC
TSTMS SC SC SC SC 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