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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 PM EDT Fri Jun 19 2026
VAZ046-200800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
431 PM EDT Fri Jun 19 2026
Date 06/19/26 Sat 06/20/26 Sun 06/21/26 Mon
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 59 86 63 90 70
TEMP 85 78 67 62 59 64 77 83 85 80 69 65 63 68 82 87 89 84 74 72 70 73
DEWPT 56 52 51 51 50 55 55 53 52 54 54 54 56 59 59 59 59 62 62 62 64 66
MIN/MAX RH 77 32 80 36 82
RH 37 40 56 67 72 73 47 36 32 41 59 68 78 73 46 39 37 48 66 71 81 79
WIND DIR NW NW W W W W W W W W W W W W W W SW S S S S SW
WIND SPD 13 9 4 4 4 4 6 8 10 5 4 3 2 1 4 6 5 3 4 5 8 12
WIND GUST 19 19 24
CLOUDS FW FW CL FW SC SC FW SC SC FW FW FW FW CL CL FW SC SC B1 SC B1 SC
CLOUDS(%) 11 6 2 11 31 34 15 41 37 17 19 14 15 3 3 17 26 35 58 48 62 45
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 0 10
RAIN SHWRS IS
MIX HGT 7 <1 <1 <1 <1 <1 5 7 8 <1 <1 <1 <1 <1 5 7 8 <1
T WIND DIR NW NW NW W W W W W W W SW W W W W W SW SW
T WIND SPD 19 12 3 3 3 4 11 12 9 10 4 3 2 3 10 12 11 3
DISPERSION PR VP VP VP PR VP VP VP VP VP PR PR
ADI 94 8 2 2 2 5 64 96 76 5 2 2 1 4 70 96104 2
MAX LVORI 1 2 3 3 3 3 1 1 1 2 3 3 4 3 1 1 1 2
STABILITY C E F F F A B B B F F G G A A B A G
CEILING None None None None None None None None None
STA PRES 29.24 29.28 29.28 29.22 29.22 29.24 29.24 29.20
Date 06/22Tue 06/23/26Wed 06/24/26Thu 06/25/26Fri 06/26/26
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 91 67 87 63 86 63 86 64 86
TEMP 89 82 72 71 85 80 67 67 83 79 67 67 84 80 68 68 84 80
DEWPT 71 71 68 65 64 64 60 59 61 63 62 63 64 66 63 63 64 65
RH 56 69 87 81 50 58 78 75 47 58 84 87 51 62 84 84 51 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC OV B1 SC SC B1 SC SC SC SC B1 B1 B1 B1 SC SC SC B1
POP 12HR 80 50 30 10 20 30 30 30 30
RAIN SHWRS IS O SC IS IS SC IS SC SC SC SC SC IS IS SC
TSTMS SC SC IS IS IS SC 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