Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Apr 16 2026
VAZ018-170800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 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 60 82 58 87 51
TEMP 69 63 61 61 73 79 81 71 64 60 58 60 76 84 86 75 68 64 57 51
DEWPT 54 56 55 54 53 47 46 44 47 46 46 49 52 52 52 52 54 54 49 43
MIN/MAX RH 80 29 68 31 78
RH 59 78 81 78 49 32 29 38 54 60 64 67 43 33 31 45 61 70 75 74
WIND DIR W W NW NW NW NW NW NW NW W W SW S SW SW SW W W W NW
WIND SPD 4 5 4 5 6 6 6 2 1 1 1 1 3 6 5 4 4 6 10 13
WIND GUST 14 19 17 17 19 21 28 35
CLOUDS OV B2 SC SC FW FW FW FW FW SC SC SC SC SC B1 B2 B2 B2 B2 B2
CLOUDS(%) 88 73 40 32 12 13 16 13 17 35 29 30 30 47 58 76 76 74 83 82
VSBY 9 10 10 10 10 10 10 10 10 10 10 10 10 7 7 6 6 6 6
POP 12HR 80 10 0 20 60
RAIN SHWRS NM IS IS NM NM NM NM SC
TSTMS IS IS IS
MIX HGT <1 <1 <1 <1 4 7 6 <1 <1 <1 <1 <1 4 7 6 <1
T WIND DIR W W W NW NW NW NW NW W NW W W SW SW SW SW
T WIND SPD 14 10 8 11 20 17 14 4 3 2 2 1 12 14 18 16
DISPERSION VP PR VP VP VP VP VP VP VP PR FR
ADI 10 7 5 14106124106 2 2 1 1 1 60115 84 11
MAX LVORI 2 4 5 4 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY E E E A B B B G G G G A A B C E
CEILING 2300 None None None None None None 7900 4600
STA PRES 27.74 27.75 27.79 27.76 27.78 27.76 27.74 27.65
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 60 38 58 34 73 52 76 52 77
TEMP 57 52 42 40 55 49 36 37 68 64 53 55 74 66 56 54 74 67
DEWPT 31 24 23 20 17 16 17 18 31 33 34 40 42 41 42 46 45 40
RH 37 33 46 44 22 26 45 46 25 31 48 57 32 40 59 74 35 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 SC FW FW CL FW CL CL CL FW FW FW SC SC FW FW SC SC
POP 12HR 50 10 0 0 0 0 10 10 20
RAIN SHWRS SC IS IS 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