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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Wed Jun 17 2026
VAZ018-172000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
301 AM EDT Wed Jun 17 2026
Date Wed 06/17/26 Thu 06/18/26 Fri 06/19/26
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 86 69 87 67 83
TEMP 55 62 74 81 85 80 75 72 71 73 80 84 86 75 72 69 67 69 75 80 81 74
DEWPT 51 55 55 53 52 55 55 58 60 63 67 69 70 67 66 65 63 63 63 59 56 54
MAX/MIN RH 32 77 58 88 42
RH 86 78 51 38 32 42 50 61 68 71 65 61 59 76 81 87 87 81 66 49 42 50
WIND DIR W W W SW W SW SW SW SW W W W W W W W W W W NW NW NW
WIND SPD 1 3 8 8 8 4 6 8 10 14 14 12 10 8 5 4 3 4 6 9 9 6
WIND GUST 36 36 32 27 26 21 18 17 18 21 23 24 23
CLOUDS FW FW SC SC SC SC B1 B1 B1 SC SC SC B1 B1 B2 B2 B2 B1 B1 SC FW FW
CLOUDS(%) 15 21 28 32 34 49 53 57 64 39 31 34 63 68 76 78 75 60 57 46 22 19
VSBY 9 10 10 10 10 10 10 10 10 7 7 6 6 6 10 10 10 10 10 10 10 10
POP 12HR 0 5 60 40 20
RAIN SHWRS SC SC SC SC SC IS IS
TSTMS SC IS
MIX HGT <1 <1 5 7 7 <1 <1 <1 <1 3 5 6 5 1 <1 <1 <1 2 4 5 5 1
T WIND DIR W W W W SW S S SW SW W W W W W W W W W W NW NW NW
T WIND SPD 3 2 11 11 14 10 8 9 9 28 35 34 27 16 21 13 8 9 4 5 11 14
DISPERSION VP VP PR PR FR PR PR VP VP PR
ADI 2 2 69 85116 7 5 8 8 84149151113 14 15 9 4 19 16 30 67 7
MAX LVORI 6 4 1 1 1 2 2 3 3 3 1 1 1 4 4 5 6 3 3 1 1 2
STABILITY G A B B B E E D D C C C C D E E F C C B B F
CEILING None None None None None 3200 2100 7100 None None
STA PRES 27.67 27.61 27.60 27.58 27.61 27.63 27.68 27.66 27.64 27.63
Date Sat 06/20/26Sun 06/21/26Mon 06/22/26Tue 06/23/26
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 60 82 59 85 66 82 65 83
TEMP 62 63 80 73 62 65 83 77 68 69 79 75 68 67 81 75
DEWPT 53 52 51 53 52 54 57 59 58 60 68 66 63 61 62 61
RH 72 67 36 49 70 68 41 54 70 73 69 74 84 81 53 62
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW CL FW FW SC B1 B1 B2 B2 B1 SC SC SC
POP 12HR 0 0 0 20 40 70 50 20
RAIN SHWRS IS SC SC NM NM SC IS IS IS
TSTMS IS IS 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