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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Sun Jun 21 2026
VAZ046-212000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
331 AM EDT Sun Jun 21 2026
Date Sun 06/21/26 Mon 06/22/26 Tue 06/23/26
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 90 64 92 67 87
TEMP 65 69 80 86 88 81 73 70 67 71 82 88 91 84 76 73 70 72 80 84 86 81
DEWPT 55 58 58 57 56 59 60 60 61 63 66 67 69 71 70 69 67 67 66 65 62 63
MAX/MIN RH 33 89 48 95 45
RH 70 68 47 37 34 47 64 71 81 76 58 50 49 65 82 87 90 84 62 53 45 54
WIND DIR W W W W SW S NE NE NE S SW SW SW SW S SW SW W NW NW N N
WIND SPD 1 1 3 5 4 2 3 3 2 3 11 12 12 6 4 2 2 6 6 6 5 4
WIND GUST 14 21 23 17 14 13 13
CLOUDS FW FW CL FW FW SC SC SC SC SC SC B1 B2 OV B2 B1 SC SC SC B1 B1 SC
CLOUDS(%) 6 10 1 22 20 40 46 42 31 31 33 56 74 89 79 63 39 43 43 57 57 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 6 6 6 10 10 10 10 10 10 10 10
POP 12HR 0 0 60 60 40
RAIN SHWRS IS NM NM NM IS IS SC SC
TSTMS IS SC SC SC SC
MIX HGT <1 <1 5 8 8 <1 <1 <1 <1 1 5 7 5 <1 <1 <1 <1 1 4 5 5 <1
T WIND DIR W W NW W W W N N NE SE SW SW SW SW SW SW SW NW N N W NE
T WIND SPD 2 2 6 11 11 8 2 2 2 1 24 20 21 3 8 6 4 11 13 6 2 4
DISPERSION VP VP VP VP VP PR VP VP VP VP
ADI 1 3 45110104 4 1 1 1 2 99 71 89 2 5 3 2 21 63 37 10 3
MAX LVORI 3 3 1 1 1 2 3 3 5 4 1 1 1 3 5 6 6 4 1 1 2 2
STABILITY G A A A A G F F G A C D C E E F G B B B C E
CEILING None None None None None 4200 4500 None None None
STA PRES 29.25 29.21 29.25 29.25 29.22 29.17 29.14 29.12 29.25 29.25
Date Wed 06/24/26Thu 06/25/26Fri 06/26/26Sat 06/27/26
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 62 87 64 88 66 90 67 91
TEMP 66 67 84 82 67 69 87 81 69 70 87 84 70 71 88 84
DEWPT 58 58 57 60 59 62 64 66 64 66 66 66 64 64 63 65
RH 75 73 40 47 75 78 46 60 84 87 50 55 81 79 43 53
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW FW FW SC B1 B1 SC SC B1 SC SC SC SC
POP 12HR 5 5 10 50 40 30 10 20
RAIN SHWRS IS SC SC IS IS SC IS IS
TSTMS SC SC SC 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