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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
335 AM EDT Sat Apr 4 2026
NCZ006-042000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
335 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 62 73 44 69
TEMP 63 63 74 82 82 76 71 69 66 65 71 71 69 65 57 51 46 46 56 64 68 60
DEWPT 60 60 63 61 59 59 59 60 59 60 64 62 58 52 43 40 37 36 35 33 33 35
MAX/MIN RH 45 87 62 74 27
RH 90 90 69 49 46 56 66 73 78 84 79 73 68 63 59 66 71 68 45 31 27 39
WIND DIR SW SW SW SW S S S S S S SW W W W NW NW NW NW NW NW W W
WIND SPD 4 4 6 9 9 5 6 9 10 10 10 9 5 2 4 4 3 3 4 4 3 1
WIND GUST 17 20 21 23 21 19
CLOUDS SC SC SC SC SC SC SC B1 B1 OV OV OV OV B2 SC FW FW FW FW FW FW SC
CLOUDS(%) 45 26 28 41 40 33 50 69 64 98 98 95 95 78 46 21 13 16 14 16 17 33
VSBY 9 10 10 10 10 10 10 10 10 10 7 6 6 6 10 10 10 10 10 10 10 10
POP 12HR 5 30 100 20 0
RAIN SHWRS O O O O IS IS
TSTMS IS IS IS
MIX HGT <1 <1 3 6 6 <1 <1 <1 <1 1 3 2 2 <1 <1 <1 <1 2 4 6 7 <1
T WIND DIR S SW SW SW SW S S S S S SW W W W NW NW NW N NW W W W
T WIND SPD 6 9 14 17 19 13 13 19 19 20 21 16 13 2 13 8 5 12 9 12 17 4
DISPERSION VP PR PR PR FR VP VP VP VP VP
ADI 5 10 62 75 85 6 9 18 18 31 48 29 30 1 9 4 3 26 41 81133 2
MAX LVORI 6 5 1 1 1 2 3 3 3 4 3 3 3 3 2 3 3 3 1 1 1 2
STABILITY E B B C C F E D D D D D D F E F G B B B B G
CEILING None None None 0 0 0 None None None None
STA PRES 29.59 29.48 29.45 29.39 29.37 29.34 29.40 29.44 29.49 29.39
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 45 65 35 62 38 70 47 76
TEMP 49 47 62 56 42 37 59 55 42 40 67 63 51 50 74 70
DEWPT 35 35 27 24 23 21 24 28 32 34 40 42 46 47 48 48
RH 58 63 26 29 46 52 26 35 67 79 37 46 83 89 40 45
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW FW FW FW FW FW FW SC SC FW FW SC FW
POP 12HR 0 0 0 0 5 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