Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Apr 15 2026
NCZ003-160800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 PM EDT Wed Apr 15 2026
Date 04/15/26 Thu 04/16/26 Fri 04/17/26 Sat
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 59 86 59 85 56
TEMP 71 67 63 63 75 81 85 78 70 64 60 62 75 83 84 77 66 60 57 60
DEWPT 51 51 51 52 53 50 51 50 52 54 54 55 56 52 50 52 50 49 48 50
MIN/MAX RH 76 31 82 31 73
RH 49 56 65 67 46 34 31 37 53 70 81 78 52 34 31 42 56 67 72 69
WIND DIR W NW NW W W SW SW W W NW NW NW NW W NW NW NW NW N N
WIND SPD 2 1 1 1 5 6 6 4 4 2 2 2 3 3 3 1 1 1 0 0
CLOUDS B1 B1 SC FW FW FW FW FW SC B1 B1 FW FW FW FW FW FW SC SC SC
CLOUDS(%) 51 60 47 20 13 12 12 24 39 53 53 24 12 17 20 13 15 30 30 37
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 10 20 10 0
RAIN SHWRS IS IS
MIX HGT <1 <1 <1 <1 5 7 7 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR SW W NW NW W W SW SW W NW NW NW NW NW NW NW
T WIND SPD 4 3 3 4 8 12 13 10 8 11 12 12 19 13 13 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 2 5 51 99104 5 4 5 6 18 96118116 4
MAX LVORI 2 3 3 3 1 1 1 2 2 3 4 3 1 1 1 2
STABILITY G F F A A B B F F F F A A A A G
CEILING None None None None None None None None None
STA PRES 28.15 28.12 28.15 28.06 28.06 28.08 28.12 28.09
Date 04/18Sun 04/19/26Mon 04/20/26Tue 04/21/26Wed 04/22/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 88 49 68 37 65 36 73 45 79
TEMP 85 81 65 55 67 61 44 39 62 58 40 41 69 66 50 51 76 71
DEWPT 55 57 54 47 36 32 26 22 23 25 26 25 33 35 36 38 43 42
RH 36 44 68 74 32 33 49 50 22 28 57 52 26 32 58 61 31 35
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B2 B2 B1 FW FW CL FW CL CL FW FW FW FW FW FW
POP 12HR 10 50 30 10 5 0 0 5 10
RAIN SHWRS SC SC SC IS
TSTMS IS
$$
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