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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 PM EDT Thu Jun 18 2026
VAZ018-190800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
301 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 66 80 59 82 60
TEMP 77 72 71 69 68 68 73 78 78 70 64 61 59 63 75 81 79 72 65 62 60 65
DEWPT 68 65 64 65 65 65 64 60 56 54 53 52 52 53 55 54 55 56 55 55 55 57
MIN/MAX RH 91 46 78 40 81
RH 74 79 79 87 90 90 73 54 47 57 67 72 78 70 50 39 44 57 70 78 84 75
WIND DIR W W W W W NW NW NW NW NW NW NW W NW NW NW NW NW W W W W
WIND SPD 10 8 5 3 2 3 6 10 10 6 4 4 4 5 8 8 8 4 2 2 3 1
WIND GUST 27 26 23 14 13 21 25 25 24 17 17 18 20 24 21 21 18
CLOUDS B2 OV OV OV OV OV B1 FW FW CL FW B1 B1 FW FW FW SC FW CL FW FW FW
CLOUDS(%) 78 90 93 99 99 93 62 19 13 1 22 59 57 15 24 20 29 12 5 15 13 9
VSBY 8 8 6 9 7 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 70 40 0 0 0
RAIN SHWRS NM NM SC SC NM SC
TSTMS SC SC SC IS IS
MIX HGT 3 1 <1 <1 <1 1 3 5 5 1 <1 <1 <1 2 5 6 6 <1
T WIND DIR W W S W S W NW NW NW NW NW NW NW NW NW NW W W
T WIND SPD 26 17 14 9 3 3 21 23 23 12 5 6 5 10 16 11 11 12
DISPERSION PR PR VP VP PR VP VP VP VP VP VP VP
ADI 79 15 10 4 2 5 71140142 6 3 5 4 23 87 78 76 6
MAX LVORI 3 4 5 5 7 6 3 1 1 3 3 3 4 3 1 1 1 3
STABILITY C D E F F B C B B F F E E A B B B F
CEILING 1900 1500 None None None None None None None
STA PRES 27.62 27.58 27.62 27.68 27.77 27.79 27.80 27.77
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 87 66 85 64 82 60 83 61 84
TEMP 85 78 69 70 80 75 68 67 79 73 62 63 81 74 64 65 81 75
DEWPT 58 61 59 62 70 68 64 62 62 59 56 56 58 60 57 58 60 61
RH 40 56 70 76 72 79 87 84 56 62 81 78 46 62 78 78 49 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B2 OV B1 B1 B1 SC SC SC SC SC FW SC SC B1
POP 12HR 5 30 90 50 20 10 20 10 30
RAIN SHWRS SC NM O SC IS IS IS IS IS SC
TSTMS IS SC IS 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