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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 AM EDT Fri Apr 3 2026
NCZ019-040800-
RAWS 312001
36.23N 81.32W Elev. 2380 ft
1201 AM EDT Fri Apr 3 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 77 59 76 60
TEMP 61 58 57 67 75 76 70 66 62 60 59 69 75 73 68 66 64 62 60
DEWPT 53 53 53 57 56 54 54 54 55 57 57 60 60 59 58 57 58 59 59
MIN/MAX RH 90 46 94 59 94
RH 75 83 86 70 52 46 57 65 78 90 93 73 60 62 70 73 81 90 96
WIND DIR S SW SW S S S S SW SW SW SW S S S S SW SW SW SW
WIND SPD 5 2 2 4 5 6 3 2 2 2 2 5 9 11 9 6 6 8 6
CLOUDS SC SC B1 SC SC SC B1 SC SC SC B1 B1 B2 B2 SC SC B2 OV OV
CLOUDS(%) 40 39 57 38 32 41 59 48 43 50 62 52 73 73 42 38 75 90 93
VSBY 10 8 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 10 5 40 60
RAIN SHWRS IS IS SC SC IS IS NM NM O
TSTMS IS IS
MIX HGT 1 <1 <1 3 5 5 <1 <1 1 1 <1 3 5 4 2
T WIND DIR S S SW SW SW S S SW SW SW SW SW SW SW S
T WIND SPD 19 12 10 12 9 9 10 3 3 3 3 11 12 16 11
DISPERSION PR VP VP VP VP VP PR PR PR PR
ADI 9 6 11 44 55 56 5 2 2 2 3 26 38 44 13
MAX LVORI 4 5 5 1 1 1 3 3 4 6 6 3 1 1 3
STABILITY F G B B B B F F F F C D D D D
CEILING None None None None None 200 2100 None
STA PRES 28.16 28.20 28.14 28.17 28.15 28.14 28.07
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 66 42 63 41 60 33 58 35 64
TEMP 64 59 49 43 61 56 45 43 59 52 38 35 56 51 39 37 62 58
DEWPT 54 42 35 32 29 30 30 32 28 25 23 23 23 24 25 27 32 34
RH 70 53 58 65 29 37 55 65 30 35 54 61 27 34 57 67 32 40
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 CL
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