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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Fri Mar 13 2026
NCZ005-140800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
231 AM EDT Fri Mar 13 2026
Date 03/12/26 Fri 03/13/26 Sat 03/14/26 Sun
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 33 58 41 67 44
TEMP 33 34 47 54 58 55 50 48 44 41 55 64 66 60 53 50 46 45
DEWPT 22 23 25 26 27 30 33 35 36 35 35 34 34 37 38 38 40 41
MIN/MAX RH 65 30 80 29 85
RH 63 64 42 34 30 38 52 60 73 79 47 32 30 42 57 63 79 86
WIND DIR S S S SW SW SW SW W W W NW S S SE SE SE E E
WIND SPD 2 4 12 18 19 12 10 6 5 3 3 3 3 3 4 4 4 3
WIND GUST 23 29 24 20
CLOUDS CL FW FW FW SC FW CL FW FW FW FW SC SC SC FW FW SC B1
CLOUDS(%) 3 8 9 18 36 15 4 9 10 11 24 42 47 34 14 14 34 63
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
RAIN SHWRS IS
MIX HGT <1 <1 3 4 5 1 <1 <1 <1 <1 2 4 5 <1 <1 <1 <1 <1
T WIND DIR S S S SW SW SW SW SW SW W NW S S SE SE SE SE SE
T WIND SPD 2 4 19 26 33 13 10 8 4 2 4 2 8 4 4 6 5 4
DISPERSION VP FR FR PR PR VP VP VP VP
ADI 1 5 64 74 98 15 7 4 2 2 10 10 43 2 2 3 3 4
MAX LVORI 3 3 1 1 1 2 2 3 3 5 2 2 1 2 3 3 4 5
STABILITY G B C D D D E F F B B B B G F F F C
CEILING None None None None None None None None None
STA PRES 29.45 29.43 29.25 29.26 29.33 29.45 29.42 29.45 29.44
Date 03/15Mon 03/16/26Tue 03/17/26Wed 03/18/26Thu 03/19/26
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 69 59 69 31 45 25 49 33 60
TEMP 66 63 61 62 68 56 40 32 42 38 29 27 45 43 36 36 56 52
DEWPT 51 55 58 61 57 42 24 14 9 7 11 12 10 19 22 25 29 35
RH 58 75 90 97 68 59 52 47 25 27 46 53 23 38 56 64 35 52
WIND SPD <15 <15 15> <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B2 B2 OV OV B1 SC FW SC SC FW SC SC B1 SC B1 B1 B1
POP 12HR 50 90 90 40 0 0 0 5 5
RAIN SHWRS IS SC SC O O O SC
TSTMS IS 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