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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Mon Mar 23 2026
NCZ003-232000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
131 PM EDT Mon Mar 23 2026
Date Mon 03/23/26 Tue 03/24/26 Wed 03/25/26
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 72 34 55 36 62
TEMP 66 60 51 45 41 37 35 43 52 55 48 42 39 38 38 48 59 62 55
DEWPT 45 35 27 25 25 23 22 20 20 20 21 22 23 25 26 28 31 32 34
MAX/MIN RH 38 59 25 62 32
RH 47 39 39 45 52 56 59 39 28 25 34 44 52 59 62 46 34 32 45
WIND DIR NW NW NW NW N N N E SE SE SE SE SE N N S S S S
WIND SPD 12 12 10 9 6 4 1 3 3 3 1 1 1 0 0 2 4 5 2
WIND GUST 28 28 27 24 17
CLOUDS SC SC SC B2 B2 SC FW SC SC FW SC SC B1 B1 SC SC SC SC B1
CLOUDS(%) 37 39 46 78 73 48 23 43 37 23 27 45 62 56 50 42 32 41 52
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 3 3 2 2 3 2 <1 3 4 4 <1 <1 <1 <1 <1 3 4 4 1
T WIND DIR NW NW N N N N NE E SE SE SE SE S S S S S S S
T WIND SPD 29 28 28 25 20 13 5 3 4 4 3 3 2 2 2 8 10 11 14
DISPERSION FR PR PR VP VP VP VP VP VP
ADI 92 98 32 34 14 9 7 13 20 21 2 2 1 1 2 27 45 56 7
MAX LVORI 1 1 1 1 2 2 3 2 2 2 2 2 2 3 3 2 1 1 2
STABILITY C C D D E E A B B B G F F F A B B B F
CEILING None 21100 None None None None None None None
STA PRES 28.15 28.29 28.37 28.42 28.37 28.39 28.37 28.37 28.29
Date Thu 03/26/26Fri 03/27/26Sat 03/28/26Sun 03/29/26
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 45 74 56 76 35 56 30 60
TEMP 47 46 71 70 60 59 74 59 44 35 53 50 36 31 57 53
DEWPT 37 41 52 53 52 53 56 46 34 24 21 20 20 22 24 27
RH 68 83 51 55 75 80 53 62 68 64 28 30 52 69 28 36
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC FW SC B1 B2 B2 B1 FW FW CL FW FW SC
POP 12HR 0 10 5 40 50 10 5 5
RAIN SHWRS 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