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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Wed Apr 29 2026
VAZ024-292000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 AM EDT Wed Apr 29 2026
Date Wed 04/29/26 Thu 04/30/26 Fri 05/01/26
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 73 48 69 40 70
TEMP 63 69 73 68 60 54 50 50 60 66 68 60 50 45 41 44 59 67 69 62
DEWPT 59 61 61 59 52 47 44 43 41 38 35 34 34 34 34 35 36 36 36 37
MAX/MIN RH 67 83 30 76 30
RH 87 76 66 73 75 77 80 77 49 36 29 37 54 65 76 70 42 32 30 39
WIND DIR SE S S W W W W NW NW NW NW NW NW NW NW W W W W NW
WIND SPD 3 6 5 5 4 3 3 3 6 8 8 4 2 2 2 2 4 6 6 3
WIND GUST 16 19 17 13 18 19 19 17 17 18 14
CLOUDS OV B2 B1 SC SC SC SC SC SC FW FW FW SC SC SC SC SC B1 B1 B1
CLOUDS(%) 98 75 67 50 34 34 41 32 36 24 9 11 26 34 46 48 35 54 66 69
VSBY 5 5 6 6 6 6 10 10 9 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 100 5 5 5 20
RAIN SHWRS O SC SC IS IS IS
TSTMS IS SC SC
MIX HGT 2 2 3 1 1 <1 <1 2 6 7 7 1 <1 <1 <1 2 6 8 8 1
T WIND DIR S S S SW NW NW NW NW NW W W NW NW W NW NW SW SW W SW
T WIND SPD 8 9 10 9 13 13 12 16 14 14 18 14 5 3 2 3 5 9 14 6
DISPERSION PR VP VP VP VP VP VP VP VP
ADI 19 25 31 6 6 6 6 38 97118138 7 3 2 1 7 39 46 75 3
MAX LVORI 4 3 3 3 4 4 4 3 1 1 1 2 2 3 4 3 1 1 1 2
STABILITY B C C E F G F A B B B F G G F A A C C F
CEILING 100 400 None None None None None None None 6300
STA PRES 28.32 28.18 28.25 28.33 28.37 28.36 28.46 28.45 28.45 28.37
Date Sat 05/02/26Sun 05/03/26Mon 05/04/26Tue 05/05/26
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 44 64 35 68 41 73 45 77
TEMP 48 46 60 57 43 41 65 60 47 46 70 64 51 49 73 68
DEWPT 38 38 38 34 31 31 30 31 33 37 39 41 43 45 44 45
RH 68 73 44 42 62 67 27 33 58 71 32 43 74 86 35 43
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 B1 SC FW FW FW FW FW FW SC SC SC B1 B1
POP 12HR 20 30 10 0 5 20 20 30
RAIN SHWRS IS IS SC IS IS IS SC SC
TSTMS 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