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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Sat Apr 4 2026
VAZ024-042000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
802 AM EDT Sat Apr 4 2026
Date Sat 04/04/26 Sun 04/05/26 Mon 04/06/26
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 84 58 70 40 66
TEMP 76 83 83 75 71 68 67 63 63 68 68 59 53 47 43 42 54 62 65 57
DEWPT 60 59 58 59 59 59 60 60 57 52 44 39 36 33 32 31 31 31 31 31
MAX/MIN RH 41 100 42 70 28
RH 58 44 43 58 66 73 78 90 81 57 42 47 52 58 65 65 41 31 28 37
WIND DIR SW S S S SW SW SW SW W W W NW NW NW NW NW W W W W
WIND SPD 4 8 9 5 5 5 6 6 6 8 8 6 5 4 3 2 4 8 6 3
WIND GUST 18 21 19 18 19 20 21 19 19 21 20 19 16 14 18 19
CLOUDS FW FW SC SC FW SC B1 OV OV B2 B1 B1 FW FW FW FW CL CL FW FW
CLOUDS(%) 17 24 30 41 22 50 56 97 97 87 63 51 16 10 6 7 4 5 7 7
VSBY 10 10 10 10 10 10 10 6 3 7 9 7 10 10 10 10 10 10 10 10
POP 12HR 5 70 100 0 0
RAIN SHWRS IS O O IS IS
TSTMS IS
MIX HGT 4 7 5 2 2 1 1 1 2 4 5 2 2 2 1 2 5 7 8 1
T WIND DIR SW S S S SW SW SW SW W W W NW NW NW NW NW W W W W
T WIND SPD 6 12 18 9 12 16 16 13 9 23 19 13 11 13 10 18 12 19 26 10
DISPERSION PR PR PR PR PR PR VP VP VP
ADI 32 94 79 6 6 11 11 22 18 60 60 9 5 6 5 42 68145200 5
MAX LVORI 1 1 1 3 3 3 4 4 3 1 1 2 2 3 3 1 1 1 1 2
STABILITY B B C E F E E D D D D E F F G B B B B G
CEILING None None None 0 0 0 None None None None
STA PRES 28.67 28.57 28.54 28.45 28.48 28.46 28.53 28.55 28.57 28.48
Date Tue 04/07/26Wed 04/08/26Thu 04/09/26Fri 04/10/26
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 41 61 31 60 35 69 45 77
TEMP 47 43 58 52 37 33 57 53 39 37 66 61 49 47 75 68
DEWPT 33 28 19 19 20 19 22 27 29 30 36 39 41 42 47 46
RH 58 55 22 27 50 56 25 36 67 75 33 44 74 83 37 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL CL CL CL FW FW FW SC SC FW FW FW FW FW
POP 12HR 0 0 0 0 0 5 5 5
$$
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