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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
802 PM EDT Thu Apr 9 2026
NCZ005-100800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
802 PM EDT Thu Apr 9 2026
Date 04/09/26 Fri 04/10/26 Sat 04/11/26 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 40 76 51 81 53
TEMP 49 46 42 44 63 73 76 69 60 55 52 54 72 79 80 73 64 59 54 54
DEWPT 31 32 34 35 39 38 39 39 40 40 41 43 48 49 49 51 51 51 50 48
MIN/MAX RH 76 25 68 33 88
RH 50 58 73 70 41 28 26 33 47 57 66 66 42 35 34 46 63 75 86 80
WIND DIR SE S S SW SW SW S S SW SW W W N N N E E E E E
WIND SPD 1 1 1 2 2 3 5 3 4 4 4 3 4 4 4 2 3 4 4 4
CLOUDS CL FW CL FW FW FW CL FW FW FW FW SC SC SC SC SC SC SC FW FW
CLOUDS(%) 4 6 4 7 8 6 5 6 7 12 15 34 33 29 29 36 39 39 19 25
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 10 5
MIX HGT <1 <1 <1 <1 2 4 5 <1 <1 <1 <1 <1 3 6 6 <1
T WIND DIR E NW N W SW SW SW SW SW SW W W N N N E
T WIND SPD 2 1 0 1 8 5 8 4 4 4 3 2 9 8 3 1
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 0 1 25 31 49 2 2 2 2 2 36 60 25 1
MAX LVORI 2 3 4 3 2 1 1 2 2 3 3 3 1 1 2 2
STABILITY G G G A A A A G F F F A A A A G
CEILING None None None None None None None None None
STA PRES 29.65 29.62 29.63 29.51 29.51 29.50 29.57 29.54
Date 04/12Mon 04/13/26Tue 04/14/26Wed 04/15/26Thu 04/16/26
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 81 60 82 61 88 64 91 65 90
TEMP 77 75 65 62 79 76 66 63 86 81 69 66 89 84 71 67 88 80
DEWPT 49 47 52 52 48 47 48 51 52 51 51 52 53 51 53 54 52 52
RH 37 37 63 70 34 36 52 65 31 35 53 61 29 32 53 63 29 38
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC B1 B1 B1 SC SC SC SC SC SC SC SC B1 SC SC SC
POP 12HR 0 0 0 0 5 0 0 0 10
$$
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