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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Jun 18 2026
VAZ012-190800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Thu Jun 18 2026
Date 06/18/26 Fri 06/19/26 Sat 06/20/26 Sun
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 61 77 52 80 54
TEMP 66 65 62 63 68 73 74 67 59 56 53 57 68 75 78 72 60 56 55 59
DEWPT 64 64 62 63 64 59 56 54 54 52 51 54 53 52 53 55 55 54 52 56
MIN/MAX RH 100 51 95 41 93
RH 93 97100100 87 62 53 63 83 86 93 90 59 45 42 55 84 93 90 90
WIND DIR W SW W NW NW NW NW NW NW NW W W NW NW NW NW W W W N
WIND SPD 3 2 1 2 4 5 5 4 2 2 2 2 4 3 3 2 1 1 1 0
WIND GUST 16
CLOUDS OV OV OV OV SC FW FW FW SC B1 SC SC SC FW FW FW FW FW FW FW
CLOUDS(%) 93100 98 95 50 25 14 13 33 55 44 28 33 21 24 13 14 17 16 17
VSBY 6 5 3 6 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 20 0 0 0
RAIN SHWRS NM NM SC IS
TSTMS SC IS IS
Obvis PF PF PF
MIX HGT <1 <1 <1 1 2 5 5 1 <1 <1 <1 2 4 6 6 <1
T WIND DIR W SW SW W NW NW NW NW NW NW NW NW NW NW NW NW
T WIND SPD 10 5 1 8 24 21 20 9 4 4 5 8 10 8 6 4
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 5 5 1 12 78132133 4 2 2 3 16 54 57 49 2
MAX LVORI 9 9 10 7 4 1 1 3 5 6 6 5 1 1 1 3
STABILITY F D F B A A A F G F F A A A A G
CEILING 1400 600 None None None None None None None
STA PRES 27.13 27.06 27.13 27.18 27.26 27.28 27.28 27.24
Date 06/21Mon 06/22/26Tue 06/23/26Wed 06/24/26Thu 06/25/26
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 85 61 82 58 79 53 81 55 82
TEMP 80 77 64 64 75 73 63 61 74 70 57 57 76 72 58 58 77 73
DEWPT 56 59 59 63 68 66 63 61 61 59 55 56 57 59 56 58 58 60
RH 44 54 84 97 79 79100100 64 68 93 96 52 64 93100 52 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B2 OV B2 B1 B1 SC SC SC SC SC FW SC SC B1
POP 12HR 5 30 90 60 20 10 20 10 30
RAIN SHWRS SC NM O NM SC IS IS IS SC
TSTMS SC SC 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