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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
132 PM EDT Wed Mar 11 2026
VAZ046-112000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
132 PM EDT Wed Mar 11 2026
Date Wed 03/11/26 Thu 03/12/26 Fri 03/13/26
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 84 50 57 32 59
TEMP 81 84 79 74 70 66 56 48 48 50 45 40 36 34 34 47 55 58 54
DEWPT 62 61 57 55 55 55 46 39 31 23 19 19 21 21 22 23 25 28 29
MAX/MIN RH 45 77 33 62 31
RH 53 46 47 51 59 68 69 71 51 34 35 42 54 58 61 38 31 32 38
WIND DIR SW SW SW SW SW W NW N N NW NW NW W SW S S S SW SW
WIND SPD 10 12 11 13 13 13 13 11 10 9 4 2 2 3 5 12 14 16 13
WIND GUST 23 25 25 27 28 28 28 24 20 19 25 31 31 27
CLOUDS SC SC SC SC SC B2 OV OV B2 SC FW CL FW FW SC FW SC SC SC
CLOUDS(%) 35 48 26 42 45 74 93 94 86 38 10 3 6 23 38 23 34 38 31
VSBY 10 10 10 10 10 10 10 4 1 10 10 10
POP 12HR 30 80 90 0 0
RAIN L D C
RAIN SHWRS IS IS SC
TSTMS IS IS
MIX HGT 4 6 <1 1 2 2 2 3 4 7 <1 <1 <1 <1 <1 4 4 4 1
T WIND DIR SW SW SW SW SW SW NW N N N N N NW SW S S S SW SW
T WIND SPD 27 28 12 18 19 16 17 19 17 18 16 4 1 2 2 12 21 25 10
DISPERSION FR FR FR FR VP VP VP VP FR
ADI 97128 8 16 22 18 30 45 48 88 7 2 1 1 2 44 61 72 12
MAX LVORI 1 1 2 2 2 3 3 3 1 1 2 2 2 3 3 1 1 1 2
STABILITY C C E D D D D D D C F G G G B C D D D
CEILING None None 10100 2500 None None None None None
STA PRES 29.12 29.06 29.05 29.30 29.37 29.52 29.53 29.56 29.39
Date Sat 03/14/26Sun 03/15/26Mon 03/16/26Tue 03/17/26
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 42 65 42 66 54 61 29 45
TEMP 50 43 62 55 47 43 62 62 61 58 55 45 35 30 42 38
DEWPT 32 30 27 31 31 33 46 50 54 52 38 24 17 12 9 9
RH 50 60 26 40 53 67 56 65 78 80 53 43 47 46 25 29
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 SC FW FW SC B2 B2 B2 OV B2 B1 B1 SC SC FW
POP 12HR 0 0 0 30 60 50 20 10
RAIN SHWRS SC SC NM SC 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