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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
432 PM EDT Thu Mar 12 2026
VAZ046-130800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
432 PM EDT Thu Mar 12 2026
Date 03/12/26 Fri 03/13/26 Sat 03/14/26 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 30 56 41 64 41
TEMP 46 42 38 34 31 32 45 53 56 54 51 49 44 42 54 62 63 57 50 47 43 42
DEWPT 28 22 22 22 22 23 26 27 29 31 33 33 33 31 31 30 32 33 34 34 34 35
MIN/MAX RH 70 34 68 29 75
RH 49 44 52 61 69 69 47 36 35 41 50 54 65 65 41 30 31 40 54 60 70 76
WIND DIR NW NW W SW SW S S SW SW SW SW SW W W W W SW SE E E E NE
WIND SPD 8 4 2 2 3 5 13 17 19 14 12 9 6 5 5 5 4 3 3 4 4 4
WIND GUST 27 33 34 29 26 20
CLOUDS CL CL CL FW FW FW FW FW FW FW FW FW SC B1 B1 SC SC SC FW SC SC B1
CLOUDS(%) 2 3 2 6 16 17 13 8 6 8 8 25 39 63 59 39 46 45 23 26 33 69
VSBY 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 0 0
MIX HGT 6 <1 <1 <1 <1 <1 3 4 4 1 1 <1 <1 <1 3 4 5 <1
T WIND DIR NW NW NW SW SW S S SW SW SW SW SW SW SW W W SW E
T WIND SPD 16 5 4 2 3 4 26 31 35 14 11 8 5 4 11 8 5 3
DISPERSION VP VP VP VP GD FR PR PR VP VP VP VP
ADI 104 3 2 1 2 5 88 83103 13 10 5 3 5 37 39 35 2
MAX LVORI 1 2 2 3 3 3 1 1 1 2 2 3 3 3 1 1 1 2
STABILITY B F G G G B C D D D D E F B B B B F
CEILING None None None None None None None None None
STA PRES 29.48 29.49 29.42 29.22 29.25 29.34 29.44 29.46
Date 03/15Mon 03/16/26Tue 03/17/26Wed 03/18/26Thu 03/19/26
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 66 54 69 29 42 23 47 30 54
TEMP 62 61 57 60 67 55 37 30 41 37 29 25 45 41 34 32 52 50
DEWPT 46 49 55 59 56 33 18 11 7 5 7 10 10 18 19 23 27 32
RH 56 65 93 96 68 43 46 44 24 26 39 52 23 39 54 69 38 50
WIND SPD <15 <15 15> <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 OV OV OV OV B1 FW SC FW SC SC SC B1 SC SC SC SC
POP 12HR 20 80 90 30 0 0 5 5 10
RAIN SHWRS IS NM O O O SC
TSTMS 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