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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Mon Apr 13 2026
NCZ001-132000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
132 PM EDT Mon Apr 13 2026
Date Mon 04/13/26 Tue 04/14/26 Wed 04/15/26
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 70 54 73 57 77
TEMP 68 67 61 57 55 56 59 64 71 72 67 61 59 57 59 66 74 76 69
DEWPT 42 43 45 46 44 45 46 47 50 49 50 51 47 45 45 45 45 46 47
MAX/MIN RH 37 66 45 68 34
RH 39 42 56 67 66 66 62 54 47 44 54 70 64 64 60 47 35 34 45
WIND DIR W W SW W W W W W W W W W W W W W W SW SW
WIND SPD 13 11 10 10 10 11 12 13 11 10 10 11 13 13 13 11 8 8 9
CLOUDS B2 B1 B1 FW SC FW SC SC SC SC SC FW SC SC SC FW FW SC SC
CLOUDS(%) 71 66 55 21 27 23 37 44 40 34 27 22 30 32 30 17 22 29 39
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 10 0 0
MIX HGT 6 4 <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 5 6 <1
T WIND DIR W W W SW W W W W W SW SW W W W W W W SW SW
T WIND SPD 19 13 3 3 4 8 12 18 11 11 4 3 5 6 11 16 11 10 4
DISPERSION FR FR FR FR FR FR FR FR PR
ADI 63 40 3 2 3 5 10 52 43 57 3 2 5 6 9 45 64 68 3
MAX LVORI 1 1 3 3 3 3 3 1 1 1 3 3 3 3 2 1 1 1 2
STABILITY D D D E E E C C C B E E D D C C B B E
CEILING 2300 None None None None None None None None
STA PRES 26.90 26.88 26.85 26.85 26.80 26.81 26.78 26.79 26.75
Date Thu 04/16/26Fri 04/17/26Sat 04/18/26Sun 04/19/26
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 55 74 55 74 55 78 53 63
TEMP 58 59 74 68 59 57 71 67 57 58 75 71 62 57 60 54
DEWPT 47 48 46 46 47 51 45 46 46 48 47 49 48 49 41 36
RH 67 67 37 45 64 80 39 47 67 69 37 46 60 75 49 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 SC SC SC SC FW SC SC SC B1 B1 B1 B1 B1 B1
POP 12HR 0 0 10 5 0 10 20 40
RAIN SHWRS IS SC SC
$$
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