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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 AM EDT Fri Apr 10 2026
NCZ005-102000-
RAWS 310540
36.38N 79.70W Elev. 858 ft
802 AM EDT Fri Apr 10 2026
Date Fri 04/10/26 Sat 04/11/26 Sun 04/12/26
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 77 51 81 53 81
TEMP 63 73 77 69 59 56 53 54 72 79 80 73 63 58 54 54 67 78 81 75
DEWPT 37 35 36 39 41 40 41 43 51 52 51 52 52 51 51 50 52 52 49 49
MAX/MIN RH 23 69 36 90 33
RH 38 25 23 33 51 55 64 66 48 39 36 48 67 77 90 86 59 40 33 40
WIND DIR SW SW SW S SW SW W W NW N N E E E E E SE S S S
WIND SPD 2 4 5 4 4 4 4 3 4 4 4 2 3 4 4 4 4 6 9 5
CLOUDS CL CL CL CL FW FW FW SC SC SC SC FW SC SC SC SC FW FW FW FW
CLOUDS(%) 5 5 5 5 7 15 13 28 30 26 26 23 29 38 28 26 22 22 23 24
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 5 5 0
MIX HGT 2 4 5 <1 <1 <1 <1 <1 3 7 7 <1 <1 <1 <1 1 3 5 8 <1
T WIND DIR W SW SW S SW SW W W N NW W NE E SE SE E SE SW SW S
T WIND SPD 9 4 6 4 4 4 3 2 13 6 3 2 3 6 10 8 4 13 17 6
DISPERSION VP VP VP VP VP VP VP VP PR
ADI 29 25 43 2 2 2 2 2 59 57 29 1 2 3 5 11 16 79143 3
MAX LVORI 2 2 1 2 2 3 3 3 1 1 2 2 3 4 5 4 2 1 1 2
STABILITY A A A F F F F A A A A G G F F A A B B F
CEILING None None None None None None None None None None
STA PRES 29.60 29.50 29.50 29.50 29.54 29.50 29.54 29.58 29.63 29.52
Date Mon 04/13/26Tue 04/14/26Wed 04/15/26Thu 04/16/26
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 60 82 61 88 64 90 65 92
TEMP 65 62 80 77 66 62 86 82 69 65 88 84 71 68 89 84
DEWPT 53 53 50 49 49 51 52 52 52 53 53 50 51 55 53 52
RH 65 72 35 37 54 67 31 35 55 65 30 31 49 63 29 33
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 SC SC SC SC SC SC SC SC B1 B1 SC B1
POP 12HR 0 0 0 5 0 0 0 10
$$
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