Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
932 AM EDT Tue Apr 7 2026
VAZ046-072000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
932 AM EDT Tue Apr 7 2026
Date Tue 04/07/26 Wed 04/08/26 Thu 04/09/26
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 63 31 58 32 65
TEMP 54 59 61 52 45 40 36 36 47 53 57 50 43 39 36 38 50 61 65 57
DEWPT 28 24 20 19 17 18 17 18 20 19 19 24 26 28 28 30 34 35 34 36
MAX/MIN RH 20 56 23 85 32
RH 36 26 20 27 32 41 45 47 34 26 22 36 51 64 72 73 54 38 31 45
WIND DIR N NW N NE NE NE NE NE NE NE E E E E NE NE E SE SE E
WIND SPD 6 6 8 6 9 8 8 8 9 8 8 4 3 1 2 2 4 4 4 2
CLOUDS FW FW FW FW CL CL CL CL FW FW FW FW FW FW SC SC SC SC SC SC
CLOUDS(%) 15 11 16 9 5 3 3 4 6 8 9 15 13 23 36 49 42 43 27 26
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 5
MIX HGT 5 6 7 <1 <1 <1 <1 2 3 4 4 <1 <1 <1 <1 <1 2 4 4 <1
T WIND DIR N NW N NE NE NE NE E NE E E E E SE NE E E SE SE E
T WIND SPD 11 10 8 16 14 12 12 16 11 8 9 8 4 4 2 6 3 3 4 5
DISPERSION PR PR PR PR VP VP VP VP VP
ADI 62 73 62 7 10 8 8 33 42 37 42 4 2 2 1 7 11 17 25 3
MAX LVORI 1 1 1 2 2 2 2 1 1 1 1 2 2 3 3 3 2 2 2 2
STABILITY B B B F E E E B B B B F G G G A A A A G
CEILING None None None None None None None None None
STA PRES 29.59 29.72 29.80 29.88 29.81 29.83 29.82 29.79 29.68
Date Fri 04/10/26Sat 04/11/26Sun 04/12/26Mon 04/13/26
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 39 75 48 81 53 80 58 84
TEMP 43 43 72 66 53 52 78 71 58 55 78 75 62 60 81 77
DEWPT 37 39 42 41 41 43 49 49 48 48 51 51 51 53 53 51
RH 79 86 34 40 64 71 36 46 69 77 39 43 67 78 38 40
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW CL CL FW FW SC FW SC FW SC SC SC SC SC
POP 12HR 5 5 0 10 0 0 0 0
$$
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