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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Thu Jun 18 2026
VAZ012-182000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 AM EDT Thu Jun 18 2026
Date Thu 06/18/26 Fri 06/19/26 Sat 06/20/26
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 83 60 78 52 81
TEMP 73 78 82 75 69 65 63 63 68 74 75 68 59 55 53 57 69 76 79 72
DEWPT 66 67 68 66 65 62 61 63 63 59 56 54 54 52 51 54 53 53 53 56
MAX/MIN RH 62 100 50 96 40
RH 79 69 63 74 87 90 93100 84 59 52 61 83 90 93 90 57 45 41 57
WIND DIR W W W W W W W NW NW NW NW NW NW NW W W NW NW W NW
WIND SPD 14 17 12 10 9 5 4 3 4 5 5 3 2 2 2 2 4 3 3 2
WIND GUST 31 29 25
CLOUDS B1 B1 B2 B2 OV OV OV B2 B1 SC FW SC FW SC FW FW FW FW FW FW
CLOUDS(%) 66 60 85 86 94 90 88 70 53 40 17 37 22 38 25 22 18 20 21 22
VSBY 9 10 8 8 6 7 7 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 60 80 30 0 0
RAIN SHWRS SC SC NM NM NM NM NM IS SC
TSTMS SC SC NM SC SC IS IS
MIX HGT 3 4 3 1 <1 <1 <1 1 3 5 5 1 <1 <1 <1 1 4 5 6 <1
T WIND DIR W W SW SW NW S S S W NW NW NW NW W NW NW NW NW NW NW
T WIND SPD 35 31 28 21 8 2 3 4 8 19 23 12 5 4 4 9 11 11 10 8
DISPERSION FR PR PR VP VP VP VP VP VP
ADI 89 88 73 20 7 2 2 7 24117145 6 3 2 2 15 56 75 72 4
MAX LVORI 3 1 1 3 5 6 6 8 3 1 1 3 5 6 8 5 1 1 1 3
STABILITY D D D D D E E B C A A G G G G A A A A G
CEILING 1200 2300 1900 700 None None None None None None
STA PRES 27.13 27.10 27.15 27.12 27.11 27.15 27.23 27.23 27.25 27.22
Date Sun 06/21/26Mon 06/22/26Tue 06/23/26Wed 06/24/26
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 55 85 62 77 57 77 54 79
TEMP 57 60 80 76 64 63 73 70 61 59 73 70 57 58 76 72
DEWPT 54 56 58 63 61 63 69 65 60 59 58 58 54 55 57 60
RH 90 87 47 64 90100 87 84 97100 59 66 90 90 52 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B1 B1 B2 OV B2 B1 SC SC FW SC B1 SC
POP 12HR 0 20 50 70 60 20 10 20
RAIN SHWRS IS SC SC NM NM NM IS IS IS IS
TSTMS IS SC IS SC IS 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