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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Fri Apr 3 2026
VAZ020-032000-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
301 AM EDT Fri Apr 3 2026
Date Fri 04/03/26 Sat 04/04/26 Sun 04/05/26
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 79 59 82 58 66
TEMP 59 59 70 78 77 70 68 64 61 61 74 81 78 71 68 66 63 60 59 62 63 54
DEWPT 52 52 53 53 53 53 53 53 53 55 56 55 54 55 55 56 56 56 51 43 36 33
MAX/MIN RH 40 79 40 87 38
RH 78 78 55 42 43 55 59 67 75 81 53 41 43 57 63 70 78 87 75 50 36 45
WIND DIR SW SW S SW S SW SW SW W SW S S S S S SW SW SW W W W W
WIND SPD 3 2 4 4 3 2 2 2 2 1 2 4 5 4 4 5 5 6 5 5 6 5
WIND GUST 16 14 16 17 17 18 17 17 18 17
CLOUDS B1 SC SC SC B1 B2 SC SC SC SC FW B1 B1 SC SC B2 B2 OV OV B2 B1 SC
CLOUDS(%) 52 49 46 43 57 70 38 33 34 30 22 64 64 48 48 80 80 88 88 70 51 40
VSBY 10 10 10 10 8 5 9 10 10 10 5 3 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 50 70 80
RAIN SHWRS SC SC IS IS NM NM O O SC SC
TSTMS IS IS
MIX HGT <1 <1 2 5 5 <1 <1 <1 <1 <1 2 5 5 2 1 1 1 2 2 3 4 3
T WIND DIR S S SW SW SW S SW SW SW W W SW S S S S SW SW W W W NW
T WIND SPD 10 8 12 14 14 12 10 5 2 2 12 10 17 14 8 12 10 11 16 18 18 18
DISPERSION VP VP VP VP VP VP VP PR PR PR
ADI 5 8 40 93 60 6 5 3 1 2 35 33 51 10 5 8 7 20 31 46 95 8
MAX LVORI 4 4 1 1 1 2 3 3 4 4 1 1 1 2 3 3 4 4 3 1 1 2
STABILITY F B B B C F G G G A B D D E E E E D D D B F
CEILING None 3100 None None None 4000 None 1300 1300 None
STA PRES 28.07 28.02 28.03 28.01 28.02 27.91 27.87 27.78 27.82 27.80
Date Mon 04/06/26Tue 04/07/26Wed 04/08/26Thu 04/09/26
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 39 60 38 53 29 59 35 69
TEMP 46 40 59 52 44 40 51 44 33 31 56 50 41 39 66 59
DEWPT 30 26 24 24 28 25 16 13 17 18 18 20 24 28 33 33
RH 53 57 26 33 53 55 24 28 51 58 22 30 50 64 29 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW FW FW SC SC FW CL FW FW FW FW FW FW FW
POP 12HR 0 0 0 5 0 0 0 0
$$
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