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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Tue Apr 7 2026
VAZ018-080800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
231 AM EDT Tue Apr 7 2026
Date 04/06/26 Tue 04/07/26 Wed 04/08/26 Thu
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 37 57 29 57 33
TEMP 39 40 49 53 56 48 41 37 34 34 45 52 56 49 44 40 37 39
DEWPT 26 27 25 20 16 15 15 14 14 15 17 19 20 21 22 23 24 26
MIN/MAX RH 61 21 56 24 70
RH 59 59 39 27 20 26 34 38 43 45 32 27 24 33 41 50 59 59
WIND DIR NW NW NW NW N N N NE E E E SE SE SE SE SE N N
WIND SPD 4 6 10 9 6 3 4 3 3 2 5 6 6 4 1 1 0 0
CLOUDS SC FW FW FW FW FW FW CL CL CL FW FW FW FW FW SC SC SC
CLOUDS(%) 27 25 16 16 13 9 7 3 4 4 6 9 10 16 16 28 37 43
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 2 4 5 5 <1 <1 <1 <1 1 2 3 3 <1 <1 <1 <1 <1
T WIND DIR NW NW NW NW NW N NE E E E SE SE SE SE SE SE E SE
T WIND SPD 14 16 18 16 11 9 5 10 6 12 9 10 11 12 5 4 2 1
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 7 34 81 88 64 4 3 5 3 18 27 38 41 6 3 2 1 1
MAX LVORI 3 1 1 1 1 2 2 2 2 2 2 1 1 2 2 2 3 3
STABILITY F B B B B G F G G A A B B F G G G A
CEILING None None None None None None None None None
STA PRES 27.92 28.02 28.03 28.12 28.17 28.24 28.19 28.21 28.19
Date 04/09Fri 04/10/26Sat 04/11/26Sun 04/12/26Mon 04/13/26
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 65 40 76 48 77 52 80 57 83
TEMP 62 55 43 43 73 64 52 50 75 67 55 54 77 71 60 59 81 74
DEWPT 30 33 31 34 38 40 40 42 48 46 45 47 51 49 47 49 48 48
RH 30 43 62 70 28 41 63 74 38 47 69 77 40 46 62 69 32 40
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW CL CL CL CL FW SC SC FW FW SC SC SC SC SC SC
POP 12HR 0 5 5 5 10 5 5 0 5
$$
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