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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
732 AM EDT Sun Apr 12 2026
VAZ018-122000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
732 AM EDT Sun Apr 12 2026
Date Sun 04/12/26 Mon 04/13/26 Tue 04/14/26
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 77 59 82 59 86
TEMP 51 62 73 76 69 64 62 60 62 74 79 80 71 65 63 60 62 76 82 83 75
DEWPT 45 48 50 49 48 49 48 47 48 48 47 46 45 45 46 46 48 53 55 54 52
MAX/MIN RH 39 63 30 64 36
RH 80 60 44 39 47 58 60 62 60 40 32 30 39 48 54 60 60 45 40 37 45
WIND DIR SE S S S S SW SW SW SW SW W W W W W W W W W W SW
WIND SPD 4 6 8 8 6 5 5 6 8 10 12 10 6 4 4 4 4 6 6 5 3
WIND GUST 17 18 24 25 21 17 17
CLOUDS B1 SC SC SC SC SC B1 B2 B1 B1 B2 B1 SC SC FW SC SC SC SC SC FW
CLOUDS(%) 60 44 38 48 48 35 57 70 69 60 70 62 48 30 25 36 39 37 50 38 25
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 10 5 10
MIX HGT <1 2 3 5 <1 <1 <1 <1 <1 4 6 5 <1 <1 <1 <1 <1 4 6 4 <1
T WIND DIR E SE S S S S SW SW SW W W SW W W W W W W SW SW SW
T WIND SPD 5 11 10 10 8 3 4 5 6 27 27 23 10 5 4 3 3 16 13 14 4
DISPERSION PR PR PR PR PR VP VP VP VP
ADI 4 28 41 58 5 2 3 4 7103127 98 7 3 2 2 3 76 92 84 2
MAX LVORI 4 2 1 1 2 3 3 3 3 1 1 1 2 2 2 3 3 1 1 1 2
STABILITY C B B B E F E E B C C C E F F F A B B A G
CEILING None None None 19800 10500 4400 None None None None
STA PRES 28.12 28.06 28.03 28.0 28.00 27.97 27.94 27.92 27.93 27.86
Date Wed 04/15/26Thu 04/16/26Fri 04/17/26Sat 04/18/26
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 61 89 62 88 62 86 61 89
TEMP 65 64 87 79 66 64 85 77 66 64 83 76 63 63 87 78
DEWPT 50 49 51 49 50 50 50 48 50 55 51 49 50 52 54 51
RH 58 58 29 35 56 60 30 36 56 73 33 39 62 67 32 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B1 B1 SC B1 SC SC SC SC SC SC SC B1
POP 12HR 5 5 0 10 20 20 5 30
RAIN SHWRS IS IS IS IS SC
$$
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