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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Fri Jun 19 2026
VAZ046-192000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
401 AM EDT Fri Jun 19 2026
Date Fri 06/19/26 Sat 06/20/26 Sun 06/21/26
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 85 59 85 62 90
TEMP 69 70 75 82 85 78 67 62 60 64 77 83 85 79 68 64 62 67 82 87 89 84
DEWPT 68 69 70 66 59 57 54 54 54 57 56 56 56 58 56 56 56 59 61 61 60 63
MAX/MIN RH 42 81 37 80 38
RH 97 97 84 58 41 48 63 75 81 78 48 40 37 49 65 75 81 75 49 42 38 49
WIND DIR SW SW NW NW NW NW W W W W W W W W NW W W W SW SW SW S
WIND SPD 4 4 5 6 12 9 5 4 4 4 6 9 10 5 4 3 3 2 4 6 6 3
CLOUDS OV OV OV SC FW CL CL FW SC SC FW FW CL CL FW CL FW FW FW FW FW SC
CLOUDS(%) 100100 96 32 8 3 1 12 28 42 18 20 3 2 9 3 6 7 9 19 25 35
VSBY 7 6 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 0 0 0 0
RAIN SHWRS NM SC
Obvis PF
MIX HGT <1 1 3 6 7 <1 <1 <1 <1 <1 4 7 8 <1 <1 <1 <1 <1 5 7 8 <1
T WIND DIR S NW N NW NW NW NW W W W W W W W W NW NW NW SW SW SW S
T WIND SPD 9 5 13 11 18 13 5 3 3 3 9 13 13 6 2 2 2 1 6 12 13 11
DISPERSION VP PR PR VP VP PR VP VP VP VP
ADI 8 8 45 79 87 9 3 2 2 3 48103112 3 1 1 1 1 43 97110 5
MAX LVORI 8 6 4 1 1 2 3 4 5 4 1 1 1 2 3 4 5 4 1 1 1 2
STABILITY D D B B C E F F F A B B B F F G G A A B B G
CEILING 6300 None None None None None None None None None
STA PRES 29.11 29.12 29.24 29.27 29.28 29.23 29.25 29.26 29.26 29.21
Date Mon 06/22/26Tue 06/23/26Wed 06/24/26Thu 06/25/26
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 70 90 67 87 62 87 64 88
TEMP 72 73 89 81 71 69 84 79 66 66 83 80 67 68 85 81
DEWPT 62 66 70 71 67 65 63 63 59 59 61 63 61 62 63 65
RH 71 79 54 72 87 87 49 58 78 78 47 56 81 81 48 58
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 OV B1 SC SC SC SC SC SC SC SC SC SC B1
POP 12HR 10 80 40 20 10 20 20 30
RAIN SHWRS SC O SC IS IS IS IS IS SC
TSTMS SC SC IS 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