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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Thu Mar 12 2026
VAZ024-122000-
RAWS 441631
37.63N 79.51W Elev. 865 ft
131 PM EDT Thu Mar 12 2026
Date Thu 03/12/26 Fri 03/13/26 Sat 03/14/26
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 50 30 59 41 64
TEMP 45 48 42 38 33 31 31 45 55 58 56 52 48 44 41 52 62 64 57
DEWPT 30 22 20 21 21 22 23 25 28 31 33 33 33 32 30 30 28 31 34
MAX/MIN RH 35 71 34 65 27
RH 55 35 41 50 61 69 72 45 35 36 42 48 56 62 65 43 27 29 42
WIND DIR NW NW NW W SW SW S S SW SW SW W W W W W W SW SE
WIND SPD 6 9 4 2 1 2 2 10 13 12 6 5 4 3 2 3 4 3 2
WIND GUST 18 21 17 23 29 29 25 21 18 13
CLOUDS B2 CL CL CL FW SC SC SC FW FW FW FW FW FW SC B1 B1 B1 SC
CLOUDS(%) 79 4 4 2 13 36 35 31 15 6 6 9 12 24 47 58 57 52 47
VSBY 10 10 10 10 10 10 10 10 10 10 6 10 10 10 10 10 8 8 8
POP 12HR 100 0 0 0 0
RAIN
RAIN SHWRS
MIX HGT 4 8 2 <1 <1 <1 <1 3 5 6 2 2 <1 <1 <1 3 5 6 <1
T WIND DIR N NW NW NW SW SW S S SW SW SW SW W W W NW W SW E
T WIND SPD 25 28 10 4 2 3 5 25 28 31 11 8 6 6 11 14 9 6 3
DISPERSION VP VP VP VP PR PR VP VP VP
ADI 95140 5 2 1 2 7 82118139 5 4 3 3 12 56 52 47 2
MAX LVORI 1 1 2 2 3 3 3 1 1 1 2 2 3 3 2 1 1 1 2
STABILITY C C F G G G B C C C F F F G B B B B F
CEILING None None None None None None None None None
STA PRES 28.52 28.63 28.63 28.56 28.38 28.42 28.50 28.61 28.64
Date Sun 03/15/26Mon 03/16/26Tue 03/17/26Wed 03/18/26
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 40 61 53 68 26 41 22 48
TEMP 46 41 58 59 54 58 64 48 33 26 39 36 27 23 44 42
DEWPT 34 35 45 48 53 57 53 29 15 9 7 4 6 9 10 18
RH 63 79 62 67 96 96 67 47 47 48 26 25 40 54 24 37
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC B2 B2 B2 OV OV B2 SC SC B1 SC FW FW SC B1
POP 12HR 0 20 70 90 20 5 0 5
RAIN SHWRS IS NM NM O NM IS
SNOWSHWRS 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