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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
232 PM EDT Wed Mar 11 2026
VAZ046-120800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
232 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 50 55 30 57 42
TEMP 84 79 75 71 68 55 46 39 42 43 38 35 32 32 45 54 56 54 51 48 45 43
DEWPT 59 56 55 56 56 45 38 32 29 22 21 22 22 23 26 27 30 29 32 32 32 33
MIN/MAX RH 76 43 70 34 68
RH 43 45 50 59 65 69 73 76 60 43 50 59 66 69 47 35 37 38 48 54 60 67
WIND DIR SW SW SW SW W NW N N NW NW NW SW SW S S S SW SW SW SW W W
WIND SPD 12 11 13 13 13 13 11 10 9 4 2 2 3 5 12 16 17 13 11 8 5 4
WIND GUST 25 25 27 28 28 28 24 20 19 25 31 32 27 25 20 16
CLOUDS SC SC SC SC B2 OV OV B2 SC FW CL FW FW SC FW FW FW FW FW SC B1 B1
CLOUDS(%) 48 26 42 45 74 93 94 86 38 10 3 11 19 27 10 18 20 8 9 32 59 60
VSBY 10 10 10 10 10 10 4 1 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 80 90 0 0 0
RAIN L D C
RAIN SHWRS IS SC
TSTMS IS IS
MIX HGT 6 <1 1 2 2 2 2 2 7 <1 <1 <1 <1 <1 3 4 4 1
T WIND DIR SW SW SW SW SW NW NW N NW W N S SW S S SW SW SW
T WIND SPD 20 12 18 19 20 19 23 4 16 1 2 2 2 2 20 24 27 12
DISPERSION FR FR FR FR VP VP VP VP FR FR PR PR
ADI 92 8 16 22 28 34 48 9 75 1 1 1 1 2 71 66 80 11
MAX LVORI 1 2 2 2 3 4 4 3 1 2 2 3 3 3 1 1 1 2
STABILITY C E D D D D D D C F G G G B C D D D
CEILING None None 10100 2200 None None None None None None
STA PRES 29.14 29.06 29.05 29.28 29.36 29.47 29.50 29.49 29.31
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 64 41 67 53 66 30 45 25 48
TEMP 62 57 46 42 62 63 58 58 61 51 36 32 42 39 29 26 45 42
DEWPT 28 34 32 34 46 49 54 54 42 27 20 15 10 9 11 13 13 19
RH 27 42 58 73 56 60 86 86 49 39 52 49 26 28 46 57 27 39
WIND SPD <15 <15 <15 <15 15> <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 B2 B2 B2 B2 B2 B2 B1 SC SC SC SC SC SC SC
POP 12HR 0 0 20 60 70 20 10 5 5
RAIN SHWRS IS SC NM NM NM SC IS
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