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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Wed Mar 25 2026
NCZ001-260800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
801 PM EDT Wed Mar 25 2026
Date 03/25/26 Thu 03/26/26 Fri 03/27/26 Sat
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 45 64 51 58 30
TEMP 46 46 47 48 53 61 63 61 59 57 53 52 54 57 54 48 46 38 33 31
DEWPT 32 35 38 42 46 48 49 49 49 48 50 51 52 51 48 44 39 33 27 20
MIN/MAX RH 80 60 98 80 86
RH 58 65 71 80 77 62 60 65 69 72 89 96 93 80 80 86 76 82 78 63
WIND DIR SW W W W W W W W W W W W W W NW NW NW NW NW NW
WIND SPD 5 6 8 9 11 12 13 10 11 17 24 27 21 14 16 18 26 26 26 27
WIND GUST 23 23 35 39 35 29 27 31
CLOUDS SC SC SC SC SC SC SC FW FW SC SC SC B1 B2 B2 OV B2 B1 SC SC
CLOUDS(%) 49 32 35 37 38 39 27 20 13 34 40 42 61 77 81 96 79 62 32 36
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 10
POP 12HR 0 10 0 50 30
RAIN SHWRS IS IS SC SC SC SC
MIX HGT <1 <1 <1 <1 2 4 4 <1 <1 <1 <1 1 2 3 3 1
T WIND DIR SW SW W W W W W SW SW W W W W W W N
T WIND SPD 10 5 5 8 13 20 18 8 8 11 18 23 28 23 21 18
DISPERSION PR PR PR FR FR GD GD GD GD GD GD
ADI 7 3 4 6 35 72 70 5 5 10 16 30 60 54 51 21
MAX LVORI 3 3 3 4 3 1 1 3 3 3 4 4 4 3 3 4
STABILITY E F E C C C C E E D D D D D D D
CEILING None None None None None None 6000 400 400
STA PRES 26.80 26.77 26.78 26.72 26.68 26.64 26.67 26.68
Date 03/28Sun 03/29/26Mon 03/30/26Tue 03/31/26Wed 04/01/26
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 44 28 49 35 57 45 65 49 68
TEMP 41 41 32 29 46 44 38 39 53 52 48 49 62 60 54 53 65 63
DEWPT 13 14 13 16 18 20 22 29 39 41 41 43 46 46 45 47 49 48
RH 31 33 45 58 32 38 52 67 59 66 77 80 56 60 71 80 56 58
WIND SPD 15> <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW CL CL FW FW FW FW SC B1 B1 SC SC SC SC SC SC SC B1
POP 12HR 0 0 0 0 20 10 20 20 30
RAIN SHWRS IS IS 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