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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Fri Apr 3 2026
NCZ005-040800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
802 PM EDT Fri Apr 3 2026
Date 04/03/26 Sat 04/04/26 Sun 04/05/26 Mon
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 60 81 62 71 44
TEMP 68 65 63 62 73 79 80 75 70 68 65 63 67 69 68 64 57 52 47 45
DEWPT 58 60 60 61 61 60 60 59 60 60 59 60 63 61 56 51 42 39 37 35
MIN/MAX RH 97 49 89 61 70
RH 70 84 90 97 66 52 51 58 71 76 81 90 87 76 65 63 57 61 68 68
WIND DIR S SW SW SW SW SW SW S S SW S SW SW SW W W NW NW NW NW
WIND SPD 5 5 4 4 8 10 10 9 10 11 13 13 11 10 8 5 6 5 5 4
WIND GUST 21 24 21
CLOUDS B1 SC SC SC B1 SC B1 B1 SC B1 B2 OV OV OV OV B1 SC SC FW FW
CLOUDS(%) 58 45 44 40 53 44 57 59 48 64 71100100 93 88 62 48 32 14 12
VSBY 10 10 10 9 10 10 10 10 10 10 9 7 7 7 7 7
POP 12HR 0 10 40 100 10
RAIN SHWRS SC SC O O O O
TSTMS IS IS IS
MIX HGT <1 <1 <1 <1 3 5 6 <1 <1 <1 1 2 2 2 3 <1
T WIND DIR S SW SW SW SW SW SW S S S S SW S W W W
T WIND SPD 6 6 5 11 13 18 17 8 10 11 17 18 18 16 10 12
DISPERSION PR PR VP PR FR FR FR PR PR PR PR
ADI 5 5 4 12 32 76 56 7 9 10 15 31 36 32 24 8
MAX LVORI 3 5 6 5 3 1 1 3 3 3 4 4 4 3 3 3
STABILITY E E E B D C D D D D D D D D D E
CEILING None None None None None 2600 1400 1500 None
STA PRES 29.51 29.50 29.51 29.40 29.36 29.30 29.27 29.23
Date 04/06Tue 04/07/26Wed 04/08/26Thu 04/09/26Fri 04/10/26
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 67 44 64 35 61 39 70 47 75
TEMP 64 60 49 46 61 56 42 37 59 55 43 40 66 63 52 50 72 68
DEWPT 33 34 35 35 28 24 24 23 24 28 32 35 42 43 46 47 49 47
RH 31 37 58 65 28 29 48 56 26 35 65 82 42 48 80 89 44 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC FW FW FW CL CL FW FW SC SC SC SC FW FW SC SC
POP 12HR 0 0 0 0 0 0 5 5 5
$$
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