Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Thu Apr 16 2026
NCZ006-170800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
231 PM EDT Thu Apr 16 2026
Date 04/16/26 Fri 04/17/26 Sat 04/18/26 Sun
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 63 88 59 92 61
TEMP 89 81 74 70 66 66 79 86 87 81 69 63 60 62 82 90 91 82 74 71 66 61
DEWPT 48 50 50 52 56 58 58 51 48 49 51 51 51 52 56 54 53 53 54 53 53 54
MIN/MAX RH 77 25 76 27 76
RH 24 34 43 53 70 75 49 30 26 33 53 65 72 70 41 30 28 37 50 53 63 78
WIND DIR SW SW SW W W W NW NW NW NW W N N N S SW SW S S SW SW W
WIND SPD 12 3 3 2 2 2 3 4 4 1 1 0 0 0 2 5 6 3 4 4 5 8
CLOUDS FW FW FW SC SC SC FW FW FW FW FW FW FW SC FW SC SC B1 B1 B2 B2 OV
CLOUDS(%) 6 13 16 30 42 39 14 11 10 16 12 23 21 27 22 41 47 57 60 72 78 88
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7 7 7
POP 12HR 5 5 0 0 20
RAIN SHWRS IS IS IS IS SC
MIX HGT 7 <1 <1 <1 <1 <1 4 8 8 <1 <1 <1 <1 <1 5 9 9 <1
T WIND DIR SW SW SW W NW W NW NW NW NW SW W NW N SW SW SW SW
T WIND SPD 23 8 8 6 5 4 16 12 12 2 1 2 2 0 12 14 16 5
DISPERSION VP VP VP VP VP VP VP VP VP VP VP PR
ADI 95 4 4 3 3 4 91115113 1 1 1 1 0 76135 84 3
MAX LVORI 1 2 2 2 3 3 1 1 1 2 2 3 3 4 1 1 1 2
STABILITY C F G G F A A A A G G G G A A B C F
CEILING None None None None None None None None None 5200
STA PRES 29.29 29.29 29.32 29.36 29.30 29.33 29.33 29.33 29.25
Date 04/19Mon 04/20/26Tue 04/21/26Wed 04/22/26Thu 04/23/26
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 71 41 66 37 73 51 83 54 84
TEMP 65 60 47 44 63 59 42 40 69 67 56 55 81 76 61 57 82 75
DEWPT 42 31 26 25 20 18 20 22 26 32 34 39 41 42 44 45 47 47
RH 43 33 43 47 19 20 41 48 20 27 43 55 24 30 53 64 29 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC CL CL CL CL CL FW FW SC SC SC SC SC FW FW FW
POP 12HR 50 10 0 0 0 0 0 5 20
RAIN SHWRS SC SC 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