Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Thu Jun 18 2026
VAZ018-182000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
301 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 87 65 81 59 83
TEMP 68 72 80 84 86 79 73 70 67 68 74 79 79 70 64 61 59 63 74 80 82 74
DEWPT 55 63 66 67 69 66 65 63 62 63 63 59 56 54 53 53 52 53 55 54 55 57
MAX/MIN RH 57 88 45 77 39
RH 63 73 62 57 57 64 76 78 84 84 69 50 45 57 67 75 78 70 51 41 40 55
WIND DIR SW W W W W W W W W NW NW NW NW NW NW W W W NW NW NW NW
WIND SPD 8 16 18 14 13 13 10 8 5 4 8 9 10 6 4 3 4 5 9 8 8 4
WIND GUST 34 35 31 27 18 21 24 25 24 17 16 17 19 23 20 21 17
CLOUDS B2 B1 B1 B1 B1 B2 OV OV B2 B1 SC FW FW FW FW FW FW FW FW FW SC FW
CLOUDS(%) 75 61 64 65 65 85 93 89 80 69 49 19 13 12 16 19 21 19 17 20 34 13
VSBY 10 9 8 8 8 8 6 9 7 8 10 10 10 10
POP 12HR 50 80 10 0 0
RAIN SHWRS SC SC NM NM NM NM
TSTMS SC SC SC
MIX HGT <1 2 4 5 4 <1 <1 <1 <1 1 3 5 5 <1 <1 <1 <1 2 4 6 6 1
T WIND DIR SW W W W W W NW SW SW SW W NW NW NW NW W W NW NW NW NW NW
T WIND SPD 8 19 35 34 29 19 20 6 5 8 9 16 20 16 6 5 5 10 17 16 13 12
DISPERSION PR FR FR PR PR PR VP VP VP VP
ADI 7 36 93106 85 18 19 6 4 13 35 93126 7 3 3 3 23 89107 93 6
MAX LVORI 3 3 1 1 1 2 3 4 5 4 3 1 1 3 3 3 4 3 1 1 1 2
STABILITY D D D D D D D D E C B B B F F G F A B B B F
CEILING 2100 3800 4000 900 None None None None None None
STA PRES 27.61 27.58 27.68 27.64 27.63 27.65 27.73 27.74 27.77 27.73
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 61 88 67 81 61 81 59 83
TEMP 62 66 86 77 69 70 79 74 65 64 78 72 62 63 80 74
DEWPT 55 57 59 64 62 65 70 66 60 59 60 58 54 55 59 61
RH 78 73 40 64 78 84 74 76 84 84 54 61 75 75 49 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC SC SC B1 B2 B2 B1 SC SC SC FW SC SC SC
POP 12HR 0 10 40 70 50 20 5 20
RAIN SHWRS IS SC NM NM SC IS IS IS
TSTMS IS 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