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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
402 AM EDT Sat Apr 11 2026
NCZ003-112000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
402 AM EDT Sat Apr 11 2026
Date Sat 04/11/26 Sun 04/12/26 Mon 04/13/26
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 80 49 78 54 82
TEMP 52 54 71 79 79 70 61 57 53 53 63 74 77 72 64 60 57 57 70 80 81 75
DEWPT 37 42 51 50 50 52 48 46 45 49 52 52 50 52 50 49 48 50 52 52 50 51
MAX/MIN RH 34 89 38 79 34
RH 56 64 49 36 36 53 62 67 74 86 67 46 39 49 60 67 72 77 53 38 34 43
WIND DIR NW NW NW NW N N NW N NE E SE S S S S S SW SW SW SW SW SW
WIND SPD 2 2 2 3 3 1 1 1 1 1 2 4 5 2 2 2 2 2 5 6 5 2
WIND GUST 16
CLOUDS FW SC SC FW SC FW FW FW SC SC SC SC SC FW SC SC SC SC B1 B1 B1 B1
CLOUDS(%) 23 45 47 24 34 25 22 20 42 50 31 30 29 21 34 50 43 48 57 53 55 55
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 5 0 0 5
MIX HGT <1 <1 5 8 7 <1 <1 <1 <1 2 2 4 5 <1 <1 <1 <1 <1 3 7 8 <1
T WIND DIR NW NW NW NW NW N N N NE E E S S S S S SW SW SW SW SW SW
T WIND SPD 6 5 18 12 9 4 3 3 4 9 5 9 12 11 2 3 5 5 14 13 16 11
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 6107116 75 2 2 2 2 18 18 42 76 5 1 2 3 7 62 99132 5
MAX LVORI 3 3 1 1 1 2 3 3 4 4 3 1 1 2 3 3 3 4 1 1 1 2
STABILITY G A A A A G G G F A A A A G G F F A B B B F
CEILING None None None None None None None None None None
STA PRES 28.36 28.34 28.39 28.43 28.48 28.41 28.39 28.36 28.37 28.30
Date Tue 04/14/26Wed 04/15/26Thu 04/16/26Fri 04/17/26
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 87 58 90 60 90 61 90
TEMP 59 59 84 78 62 61 88 81 65 64 87 82 67 64 88 83
DEWPT 49 48 53 55 52 51 51 51 49 51 54 53 53 54 54 54
RH 69 67 34 45 70 70 28 35 56 63 32 37 61 70 31 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC FW SC SC B1 SC SC SC SC SC SC
POP 12HR 5 5 0 0 0 5 5 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