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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Thu Apr 2 2026
NCZ003-030800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
802 PM EDT Thu Apr 2 2026
Date 04/02/26 Fri 04/03/26 Sat 04/04/26 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 56 80 56 79 58
TEMP 65 61 57 56 68 78 79 72 66 61 57 59 71 78 76 71 66 64 62 59
DEWPT 56 53 52 54 59 58 56 56 55 56 57 57 62 62 62 60 59 59 59 59
MIN/MAX RH 92 46 99 58 99
RH 73 75 83 93 73 50 45 57 68 84100 93 73 58 62 68 78 84 90100
WIND DIR S S S SE S S S S S SW SW S S S S S S S S SW
WIND SPD 2 2 2 1 3 5 5 2 1 1 1 1 4 8 8 4 4 4 5 5
WIND GUST 13 12 19 17 17 18 18 16
CLOUDS FW SC SC B1 SC FW FW B1 B1 SC SC B1 SC B1 B1 SC SC B2 OV OV
CLOUDS(%) 24 31 38 52 32 18 24 61 51 43 47 56 45 67 67 41 38 76 90 93
VSBY 10 10 9 7 10 10 10 10 10 10 10 10 10 10 7 10
POP 12HR 5 10 10 40 60
RAIN SHWRS IS IS SC SC IS IS NM NM O
TSTMS IS IS
Obvis F F
MIX HGT 1 <1 <1 <1 3 5 6 <1 <1 1 1 <1 3 5 5 2
T WIND DIR S S S SW SW SW S S S SW SW SW SW S S S
T WIND SPD 11 17 12 10 13 12 11 11 4 3 2 2 11 13 17 11
DISPERSION VP VP VP VP VP VP VP VP VP VP PR
ADI 5 8 6 11 51 78 75 5 2 2 1 3 42 42 52 8
MAX LVORI 4 4 6 5 3 1 1 3 3 5 10 8 3 1 1 3
STABILITY G G G A B B B F F F F C B D D E
CEILING None None None None None None None 2700 None
STA PRES 28.35 28.37 28.41 28.35 28.37 28.35 28.35 28.27
Date 04/05Mon 04/06/26Tue 04/07/26Wed 04/08/26Thu 04/09/26
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 40 65 38 62 31 60 32 67
TEMP 66 63 48 43 62 58 44 41 60 53 37 33 57 53 38 36 64 60
DEWPT 57 44 36 32 31 31 31 32 30 27 24 23 25 26 26 27 34 36
RH 73 50 63 65 31 36 60 70 32 36 59 66 29 35 62 69 32 41
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS OV B2 SC FW FW SC SC SC SC FW FW CL FW FW FW FW FW FW
POP 12HR 90 5 0 0 0 0 0 0 5
RAIN SHWRS O SC
TSTMS 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