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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 PM EDT Wed Apr 29 2026
VAZ012-300800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
1001 PM EDT Wed Apr 29 2026
Date 04/29/26 Thu 04/30/26 Fri 05/01/26 Sat
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 45 61 34 66 39
TEMP 56 51 48 47 55 60 59 51 43 38 35 39 56 64 65 57 47 43 40 41
DEWPT 50 48 45 43 39 35 33 31 31 30 29 31 31 31 31 35 37 37 36 37
MIN/MAX RH 91 36 80 27 89
RH 80 89 89 86 55 39 37 46 62 73 78 73 38 29 28 43 68 79 85 85
WIND DIR NW NW NW NW NW NW NW NW NW NW NW W SW W W NW NW NW N N
WIND SPD 6 5 6 10 10 11 10 4 2 2 2 1 2 4 4 3 2 2 2 2
WIND GUST 16
CLOUDS B2 B1 B2 B2 SC SC SC FW FW SC B1 B1 SC SC B1 B2 B2 B2 B2 B2
CLOUDS(%) 73 63 85 73 40 26 28 7 24 37 65 62 35 50 59 75 81 83 87 84
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 40 0 0 10 40
RAIN SHWRS IS SC SC SC
TSTMS
MIX HGT 2 1 <1 2 3 5 5 1 <1 <1 <1 <1 4 7 8 <1
T WIND DIR NW NW NW NW NW NW NW NW NW N N N S SW W W
T WIND SPD 16 20 12 19 21 16 17 18 10 10 3 0 6 12 17 5
DISPERSION PR PR PR VP VP VP VP VP VP VP VP
ADI 11 14 8 49 89 94113 8 5 5 2 0 32111 85 3
MAX LVORI 4 4 5 4 1 1 1 2 3 3 4 4 1 1 1 2
STABILITY E E E C B B A F G G F A A A C F
CEILING 600 None None None 8300 None 7200 6500
STA PRES 27.07 27.10 27.11 27.18 27.19 27.18 27.13
Date 05/02Sun 05/03/26Mon 05/04/26Tue 05/05/26Wed 05/06/26
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 56 30 61 35 70 46 72 45 74
TEMP 54 49 35 35 59 52 38 41 67 61 50 49 70 62 49 49 72 66
DEWPT 35 29 27 28 26 28 29 31 39 42 43 44 44 44 43 44 47 47
RH 48 46 72 75 28 39 70 67 36 49 77 83 39 52 80 83 41 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC FW FW FW FW CL FW B1 SC SC SC B1 SC SC SC B1
POP 12HR 40 10 0 5 30 30 30 20 30
RAIN SHWRS SC SC IS SC SC IS IS SC IS IS SC
TSTMS IS 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