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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
400 AM EDT Tue Mar 10 2026
NCZ003-102000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
400 AM EDT Tue Mar 10 2026
Date Tue 03/10/26 Wed 03/11/26 Thu 03/12/26
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 77 60 82 53 56
TEMP 54 54 67 75 77 71 67 62 60 60 68 79 81 75 72 69 65 56 51 48 50 46
DEWPT 44 44 51 54 56 57 59 59 59 59 62 61 58 55 56 57 55 50 41 31 25 22
MAX/MIN RH 47 95 44 81 36
RH 69 69 56 48 48 61 75 90 96 96 81 54 46 50 57 66 70 80 68 51 37 38
WIND DIR SW W SW SW SW S SW W W SW SW SW SW SW SW SW W NW NW NW NW N
WIND SPD 1 2 2 5 5 4 4 3 3 3 5 10 13 16 17 14 16 17 13 11 10 6
WIND GUST 21 25 28 27 24 21
CLOUDS SC SC FW FW SC FW SC SC B1 B1 B1 B1 SC B1 B1 B2 OV OV B2 B2 B1 SC
CLOUDS(%) 43 39 23 22 33 17 29 33 55 68 69 58 44 65 65 83 91 92 85 71 53 33
VSBY 10 10 10 10 10 10 10 10 9 4 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 10 10 70 70
RAIN SHWRS IS IS NM NM NM IS
MIX HGT <1 <1 1 5 7 <1 <1 <1 <1 <1 1 5 6 3 2 1 <1 2 2 3 5 1
T WIND DIR NW N W SW SW SW SW SW W S SW S SW SW SW SW SW NW NW NW N N
T WIND SPD 2 2 2 9 11 6 9 5 5 3 5 8 25 10 10 8 8 24 19 21 18 20
DISPERSION VP VP VP VP VP GD GD GD GD PR
ADI 1 2 4 50 82 3 4 3 3 3 8 26 86 14 14 9 7 41 38 49 54 9
MAX LVORI 3 3 3 1 1 3 4 6 8 6 4 2 1 2 2 3 3 3 3 1 1 2
STABILITY F B B B B F F G F C D D D D D D D D D D D F
CEILING None None None None 0 None 0 0 0 None
STA PRES 29.07 29.01 29.03 28.98 28.96 28.87 28.85 28.80 28.95 29.00
Date Fri 03/13/26Sat 03/14/26Sun 03/15/26Mon 03/16/26
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 31 58 40 67 47 69 48 56
TEMP 37 33 54 54 47 41 64 59 51 48 64 65 59 50 51 44
DEWPT 24 23 22 28 32 33 37 39 41 43 51 53 53 42 28 21
RH 59 66 28 36 56 73 37 47 68 83 63 65 80 74 41 39
WIND SPD <15 <15 <15 <15 <15 <15 <15 15>
AVG CLOUDS FW FW FW SC FW FW FW FW FW B1 B2 B2 B2 OV B2 B2
POP 12HR 0 0 0 0 5 40 50 40
RAIN SHWRS IS SC SC SC SC 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