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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Sat Mar 14 2026
VAZ046-150800-
RAWS 441101
37.39N 78.80W Elev. 804 ft
131 AM EDT Sat Mar 14 2026
Date 03/13/26 Sat 03/14/26 Sun 03/15/26 Mon
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 43 63 41 64 54
TEMP 49 46 44 54 61 63 57 50 47 43 42 52 60 64 60 56 56 59 61
DEWPT 35 33 29 25 24 27 30 30 31 32 33 38 46 49 49 52 54 57 59
MIN/MAX RH 60 24 71 57 93
RH 58 60 55 32 24 25 35 46 53 65 70 59 60 58 67 86 93 93 93
WIND DIR W W W W W W SE E E E NE E SE SE E SE SE S S
WIND SPD 10 8 6 8 5 4 2 3 4 4 4 6 8 9 8 8 8 10 13
WIND GUST 19 19 20 19 24 27
CLOUDS FW FW SC B1 B1 SC SC SC FW SC B1 B1 B2 B2 OV OV OV OV OV
CLOUDS(%) 17 25 28 53 60 39 32 28 17 31 62 68 78 72 90 90 93 94 95
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 3 1 1 2
POP 12HR 0 0 0 30 80
RAIN SHWRS SC SC O O O O O
MIX HGT <1 <1 <1 3 4 4 <1 <1 <1 <1 <1 2 3 4 1
T WIND DIR SW SW W W W W E E E E E SE E E E
T WIND SPD 9 5 4 13 14 9 2 4 5 5 10 8 8 6 6
DISPERSION FR PR VP VP VP VP PR PR PR FR
ADI 6 4 5 51 69 47 1 2 3 3 11 15 19 19 0
MAX LVORI 3 3 2 1 1 1 2 2 3 3 3 2 2 2 4
STABILITY E E B B B B G G F F D D D D A
CEILING None None None None None 1200 1200 1900
STA PRES 29.31 29.45 29.48 29.53 29.53 29.54 29.42
Date 03/16Tue 03/17/26Wed 03/18/26Thu 03/19/26Fri 03/20/26
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 68 29 41 22 46 30 59 38 65
TEMP 68 57 38 31 40 36 28 24 43 41 36 33 56 52 44 40 63 57
DEWPT 60 40 20 12 9 7 9 12 11 18 21 25 31 35 35 34 37 38
RH 76 53 48 45 27 29 44 60 27 39 54 72 38 52 70 79 38 49
WIND SPD 15> 15> <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV OV SC SC SC SC FW SC SC SC B1 B1 SC FW FW SC SC SC
POP 12HR 100 20 5 0 0 5 5 5 20
RAIN SHWRS O O IS IS
TSTMS IS SC
$$
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