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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 PM EDT Wed Jun 17 2026
VAZ024-180800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
901 PM EDT Wed Jun 17 2026
Date 06/17/26 Thu 06/18/26 Fri 06/19/26 Sat
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 67 93 66 87 59
TEMP 72 69 68 73 88 91 88 81 74 71 68 69 79 85 86 79 67 62 59 63
DEWPT 55 56 58 63 68 70 71 68 68 67 66 66 64 60 57 56 55 55 54 55
MIN/MAX RH 76 46 93 37 84
RH 55 63 70 71 52 50 57 65 82 87 93 90 60 43 37 45 65 78 83 75
WIND DIR S SW SW SW SW W W W SW SW W W W W NW NW NW NW NW NW
WIND SPD 3 3 3 9 13 11 10 6 3 2 1 1 4 8 9 5 2 2 2 3
WIND GUST 14 16 16 27 32 28 25 24 14 14 19 21 20
CLOUDS B1 B2 B2 B1 B1 B1 B1 B2 OV B2 B2 B1 B1 FW FW FW FW FW FW FW
CLOUDS(%) 60 72 77 59 57 60 63 76 91 71 75 67 52 20 11 12 16 19 23 16
VSBY 10 10 10 8 7 6 6 6 10 7 10 10 10 10 10 10
POP 12HR 0 40 30 10 0
RAIN SHWRS SC SC SC IS
TSTMS SC SC SC
MIX HGT <1 <1 <1 2 5 6 4 <1 <1 <1 <1 1 4 6 6 <1 <1 <1 <1 2
T WIND DIR S S SW SW W W W W W SW SW W NW W NW NW NW NW NW W
T WIND SPD 8 9 8 10 28 31 29 11 11 11 9 6 13 16 19 12 4 3 2 2
DISPERSION VP VP VP PR VP VP VP PR VP VP VP
ADI 4 4 4 23 86102110 8 5 5 4 10 51109137 6 2 2 1 6
MAX LVORI 3 3 3 3 1 1 1 3 4 5 6 5 1 1 1 2 3 4 5 4
STABILITY F F F B D D C E F F F B C B B F G G G A
CEILING 7400 None 5300 4500 8300 None None None None
STA PRES 28.26 28.28 28.28 28.33 28.33 28.36 28.38 28.47 28.50
Date 06/20Sun 06/21/26Mon 06/22/26Tue 06/23/26Wed 06/24/26
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 86 60 90 65 88 63 86 60 86
TEMP 84 79 63 65 87 83 70 69 82 79 68 66 83 79 65 64 84 79
DEWPT 53 56 56 58 59 62 61 63 68 68 64 62 62 63 59 59 61 63
RH 34 45 78 78 39 49 73 81 63 69 87 87 49 58 81 84 46 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC B1 B1 B2 B2 B1 B1 SC SC SC SC SC SC
POP 12HR 0 0 10 30 80 40 20 20 20
RAIN SHWRS SC SC NM O SC IS IS IS IS IS IS IS
TSTMS SC 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