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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 AM EDT Sat Jul 18 2026
VAZ018-182000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
1101 AM EDT Sat Jul 18 2026
Date Sat 07/18/26 Sun 07/19/26 Mon 07/20/26
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 87 70 87 67 85
TEMP 86 84 76 74 73 72 73 79 84 85 77 71 69 67 69 77 82 84 77
DEWPT 72 70 70 69 69 69 69 71 71 69 68 66 65 65 65 69 69 69 69
MAX/MIN RH 62 90 58 92 60
RH 63 63 82 84 87 90 87 77 65 59 74 84 87 93 87 76 65 61 76
WIND DIR W W W W W W NW NW NW NW NW NW N N NE SE S S SE
WIND SPD 6 6 6 5 5 6 6 5 5 5 2 2 1 1 1 2 3 3 2
WIND GUST 21 21 23 24 24 17
CLOUDS OV B2 B1 SC SC B2 B1 SC B1 SC SC SC SC SC B1 SC B1 B1 SC
CLOUDS(%) 99 75 53 42 40 79 53 32 60 50 40 33 38 41 55 39 67 67 50
VSBY 10 10 9 7 7 7 7 7 7 7 7 7 10 10 7 7 6 6 7
POP 12HR 40 20 30 20 50
RAIN SHWRS SC SC SC IS IS IS SC SC IS
TSTMS SC SC SC IS SC SC IS
MIX HGT 3 4 1 <1 <1 <1 1 3 4 5 1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR W W W W W W NW NW NW W NW NW NW N E S SE SW E
T WIND SPD 13 13 14 11 9 14 19 11 13 11 10 3 3 1 3 5 3 4 1
DISPERSION PR PR PR PR VP VP VP VP VP
ADI 47 48 10 8 4 10 34 46 53 67 5 2 2 1 4 24 18 24 1
MAX LVORI 1 1 4 4 5 5 4 3 1 1 4 5 7 8 6 3 2 2 4
STABILITY C C E E F E C A C A G G G F B A B B F
CEILING 4100 None 1400 None None None None None 2400
STA PRES 27.69 27.68 27.66 27.71 27.70 27.73 27.76 27.78 27.74
Date Tue 07/21/26Wed 07/22/26Thu 07/23/26Fri 07/24/26
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 68 89 69 83 59 81 60 84
TEMP 70 71 87 79 72 71 81 74 64 62 78 72 63 63 80 75
DEWPT 67 68 71 69 68 68 67 63 59 58 59 59 57 58 63 63
RH 90 90 59 72 87 90 63 69 84 87 52 64 81 84 56 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 B1 B2 B2 B2 B1 B1 SC FW SC FW SC SC SC B1
POP 12HR 20 60 80 40 20 5 5 20
RAIN SHWRS IS SC NM O NM SC SC IS IS IS
TSTMS IS IS SC SC IS 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