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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
501 PM EDT Tue Mar 24 2026
NCZ003-250800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
501 PM EDT Tue Mar 24 2026
Date 03/24/26 Wed 03/25/26 Thu 03/26/26 Fri
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 35 61 45 74 58
TEMP 46 42 38 36 36 48 59 61 55 50 47 46 48 61 70 72 68 62 60 59 60
DEWPT 21 22 22 24 26 30 31 32 33 34 36 37 40 47 51 52 52 52 53 53 53
MIN/MAX RH 68 33 74 48 81
RH 37 44 52 61 67 49 34 33 43 54 65 71 74 60 51 49 57 70 78 80 78
WIND DIR SE SE S S S S S S S S S S S S SW SW SW SW W W W
WIND SPD 1 1 1 1 1 2 4 5 2 2 1 1 1 3 5 8 3 2 2 3 4
WIND GUST 14 18
CLOUDS FW SC B1 B1 B1 SC SC B1 B2 B1 SC SC SC SC SC SC FW FW SC SC SC
CLOUDS(%) 21 46 56 62 56 27 50 63 75 59 43 37 31 43 41 30 17 10 41 34 43
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 5 0
MIX HGT <1 <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 <1 2 4 5 1
T WIND DIR SE S S SW S S S S S SW SW SW SW W SW SW SW
T WIND SPD 4 3 2 1 1 6 10 10 11 10 6 4 2 10 14 17 13
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 2 2 1 1 1 20 44 28 5 5 3 2 2 32 79 97 6
MAX LVORI 2 2 2 3 3 2 1 2 2 2 3 3 3 1 1 1 3
STABILITY G F F F B B B D F F F G A B B B G
CEILING None 13200 None 3500 None None None None None
STA PRES 28.39 28.37 28.37 28.30 28.27 28.23 28.22 28.14
Date 03/27Sat 03/28/26Sun 03/29/26Mon 03/30/26Tue 03/31/26
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 80 36 58 30 62 39 69 46 74
TEMP 77 65 46 37 55 51 36 33 60 55 43 41 67 63 52 48 72 68
DEWPT 56 49 36 23 17 19 20 19 23 27 26 30 39 44 43 42 48 49
RH 48 56 68 56 22 28 52 56 24 34 51 65 36 50 71 80 42 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B2 B2 SC FW FW FW FW FW FW SC SC B1 B1 SC SC B1 B1
POP 12HR 50 40 5 5 5 5 10 10 20
RAIN SHWRS 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