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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Thu Jun 4 2026
VAZ046-042000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
1001 AM EDT Thu Jun 4 2026
Date Thu 06/04/26 Fri 06/05/26 Sat 06/06/26
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 88 59 91 66 92
TEMP 81 86 87 79 67 63 60 64 83 89 91 83 73 69 66 70 85 90 92 86
DEWPT 52 52 52 56 52 52 51 54 57 55 55 60 56 56 56 59 60 58 58 59
MAX/MIN RH 31 74 30 72 31
RH 37 31 30 45 59 67 72 70 41 32 30 46 55 63 70 68 43 34 32 40
WIND DIR N NE E S S SW SW W W W SW SW S SW SW SW W SW SW SW
WIND SPD 3 2 2 2 2 3 3 3 4 5 6 2 4 4 5 4 8 9 10 4
CLOUDS CL CL CL CL FW FW CL CL CL FW FW FW SC SC SC FW FW SC SC SC
CLOUDS(%) 0 5 3 5 8 16 3 3 1 22 17 15 39 42 31 25 22 38 35 33
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 5 7 8 <1 <1 <1 <1 <1 4 7 7 <1 <1 <1 <1 <1 4 8 7 <1
T WIND DIR NE NE NE SE SW SW SW SW W SW SW W S SW SW W W W W W
T WIND SPD 8 4 1 1 2 2 2 2 4 9 11 9 3 3 3 3 14 14 14 5
DISPERSION VP VP VP VP VP VP VP PR VP
ADI 54 39 10 1 1 1 1 2 25 81 90 4 2 2 2 3 77121107 3
MAX LVORI 1 1 2 2 3 3 3 3 2 1 1 2 3 3 3 3 1 1 1 2
STABILITY A A A G G G G A A A B G F E F A B B B F
CEILING None None None None None None None None None
STA PRES 29.42 29.41 29.41 29.40 29.32 29.32 29.31 29.31 29.23
Date Sun 06/07/26Mon 06/08/26Tue 06/09/26Wed 06/10/26
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 69 92 67 86 59 83 61 87
TEMP 72 73 89 84 71 70 84 80 64 62 80 78 65 65 84 81
DEWPT 59 61 65 66 63 62 61 61 57 55 56 57 56 57 58 60
RH 64 66 45 55 76 76 46 52 78 78 44 48 73 75 41 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 SC SC SC B1 SC SC FW FW FW FW SC SC
POP 12HR 5 50 20 20 10 10 10 30
RAIN SHWRS IS SC IS IS IS SC
TSTMS 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