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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Thu Apr 9 2026
VAZ024-100800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 PM EDT Thu Apr 9 2026
Date 04/09/26 Fri 04/10/26 Sat 04/11/26 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 40 80 52 80 51
TEMP 63 57 48 44 41 42 65 77 79 71 61 55 52 54 70 77 79 71 60 55 51 52
DEWPT 32 32 30 29 30 32 37 38 40 41 42 41 42 45 50 45 43 45 45 43 43 43
MIN/MAX RH 67 23 73 27 74
RH 31 38 49 55 65 67 35 24 25 34 49 59 69 71 49 32 28 39 58 64 74 71
WIND DIR SE SE N N N NW SW SW SW SW SW W W NW NW NW NW E E E E E
WIND SPD 3 1 0 0 1 1 2 4 4 2 2 2 2 2 2 3 2 2 2 1 1 1
CLOUDS FW FW CL FW CL FW CL FW FW FW FW SC SC SC SC SC SC FW FW FW SC SC
CLOUDS(%) 20 9 4 6 4 6 5 6 7 13 17 30 41 45 27 30 30 19 20 22 35 44
VSBY 10 10 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 20 5
RAIN SHWRS IS IS
MIX HGT 4 <1 <1 <1 <1 <1 2 6 7 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR S S S NW NW NW W W SW S SW W W NW N NW NW SE
T WIND SPD 5 4 2 2 3 2 6 9 11 5 3 4 3 3 8 10 5 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 27 2 1 1 2 2 19 64 97 3 2 2 2 3 45 83 50 1
MAX LVORI 2 2 2 3 3 3 2 1 1 2 2 3 3 3 1 1 2 2
STABILITY A G G G G A A A A G G G F A A A A G
CEILING None None None None None None None None None None
STA PRES 28.86 28.86 28.82 28.81 28.71 28.71 28.71 28.78 28.76
Date 04/12Mon 04/13/26Tue 04/14/26Wed 04/15/26Thu 04/16/26
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 79 58 83 57 90 62 93 63 91
TEMP 75 73 62 60 80 77 63 60 87 81 67 64 91 83 70 65 89 81
DEWPT 49 49 47 49 49 47 48 50 54 55 54 56 54 53 52 54 53 52
RH 40 43 58 67 34 35 58 69 32 41 63 75 29 36 53 68 29 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B1 SC SC SC SC SC SC SC B1 B1 SC SC B1
POP 12HR 0 0 5 5 10 0 5 5 20
RAIN SHWRS 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