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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
601 PM EDT Wed Jun 17 2026
VAZ046-180800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
601 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 69 94 69 87 61
TEMP 79 72 71 71 75 88 94 91 83 76 74 71 72 79 84 86 80 69 65 62 66
DEWPT 56 54 57 61 65 68 69 70 69 69 68 67 68 67 63 59 58 55 55 54 56
MIN/MAX RH 76 44 90 40 76
RH 45 53 61 71 71 52 44 50 63 79 82 87 87 67 49 40 47 61 70 75 70
WIND DIR S S SW SW SW SW SW W W SW SW SW W W W W NW NW W W W
WIND SPD 4 5 9 12 14 17 17 14 10 8 6 5 5 6 9 11 8 5 4 4 4
WIND GUST 20 26 27 29 29 26 21 18
CLOUDS SC SC B1 B1 SC B1 SC B1 B1 OV OV B2 B2 B1 SC FW FW FW FW FW FW
CLOUDS(%) 26 38 58 66 42 63 45 54 65 91 91 75 70 52 28 14 16 19 19 19 15
VSBY 10 10 10 10 10 10 7 7 6 10 10 10 10 10 10 10 10
POP 12HR 0 40 50 20 0
RAIN SHWRS IS SC SC IS SC IS IS
TSTMS IS SC SC IS
MIX HGT <1 <1 <1 <1 2 5 7 5 <1 <1 <1 <1 <1 3 6 7 <1
T WIND DIR S S S SW SW SW W W SW SW SW SW SW NW W W NW
T WIND SPD 10 4 8 10 23 28 28 31 10 9 12 14 11 8 13 20 11
DISPERSION VP PR PR FR FR PR PR PR PR PR VP VP
ADI 5 2 7 9 49 87139 98 9 8 8 10 13 28 87 97 8
MAX LVORI 2 3 3 3 3 1 1 1 3 4 4 5 4 3 1 1 2
STABILITY F F D D C D C D D D E E C C B C E
CEILING None 22200 12300 None 7100 5400 None None None
STA PRES 29.08 29.05 29.06 29.04 29.10 29.11 29.13 29.13
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 62 90 67 88 65 85 62 85
TEMP 84 80 65 67 86 83 71 71 84 81 70 68 82 79 66 66 82 80
DEWPT 54 55 55 58 59 62 62 64 68 68 65 62 62 62 60 60 60 61
RH 36 42 70 73 40 49 73 79 59 65 84 81 51 56 81 81 47 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC SC B1 B1 B2 B1 SC SC SC FW SC SC SC
POP 12HR 0 0 10 30 70 40 20 10 20
RAIN SHWRS IS SC SC NM SC IS IS IS IS
TSTMS 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