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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1102 PM EDT Wed Mar 11 2026
VAZ020-120800-
RAWS 441801
37.99N 79.76W Elev. 2160 ft
1102 PM EDT Wed Mar 11 2026
Date 03/11/26 Thu 03/12/26 Fri 03/13/26 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 40 44 29 58 38
TEMP 61 53 44 40 41 43 38 35 33 32 31 42 54 57 53 50 47 42 39
DEWPT 54 44 37 28 22 16 15 16 17 18 19 20 23 24 26 29 30 30 27
MIN/MAX RH 79 33 62 27 65
RH 78 71 76 62 46 33 38 45 51 56 61 41 30 28 35 44 51 62 62
WIND DIR W W NW NW NW NW NW W W SW S S SW SW SW W W W W
WIND SPD 12 12 12 14 14 12 9 6 2 2 2 6 6 8 6 6 5 4 3
WIND GUST 23 17 23 21 18 18 18 14
CLOUDS OV OV OV OV B2 FW FW CL FW SC SC FW SC FW FW FW FW SC SC
CLOUDS(%) 100100 95 93 73 11 17 1 23 40 36 22 27 14 8 9 18 40 42
VSBY 10 8 5 3 7 10 10 10 10 10 10 3 10 10 3 10 10 10 10
POP 12HR 70 70 0 0 0
RAIN SHWRS NM NM NM IS
SNOWSHWRS IS
MIX HGT 3 2 2 3 4 7 3 <1 <1 <1 <1 2 6 6 3
T WIND DIR SW NW NW NW NW NW NW NW SW SW S S S SW SW
T WIND SPD 14 25 21 28 27 29 13 10 2 4 4 20 23 26 10
DISPERSION FR FR PR PR VP VP PR PR PR VP
ADI 10 28 40 64108200 6 5 1 2 5 64150183 5
MAX LVORI 3 3 3 1 1 1 2 2 2 3 3 1 1 1 2
STABILITY E D D D C B F G G G B B B B F
CEILING 1400 4500 None None None None None None
STA PRES 27.64 27.78 27.84 27.93 27.93 27.89 27.74
Date 03/14Sun 03/15/26Mon 03/16/26Tue 03/17/26Wed 03/18/26
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 61 40 59 45 59 24 38 22 45
TEMP 60 52 44 41 57 56 52 54 50 41 30 25 36 31 26 24 43 39
DEWPT 19 28 30 32 40 43 48 48 31 17 12 10 4 4 8 10 11 15
RH 20 39 57 70 53 62 86 80 48 37 46 52 25 31 46 54 27 37
WIND SPD <15 <15 <15 <15 15> <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 B1 B1 SC FW SC SC B1
POP 12HR 0 0 10 60 60 20 10 5 10
RAIN SHWRS SC NM NM SC
SNOWSHWRS SC 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