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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Fri Apr 10 2026
NCZ005-110800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
801 PM EDT Fri Apr 10 2026
Date 04/10/26 Sat 04/11/26 Sun 04/12/26 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 52 81 53 81 60
TEMP 60 57 54 55 72 79 80 71 63 60 55 54 66 77 81 75 68 65 62 62
DEWPT 41 41 41 44 51 52 51 51 50 50 51 50 51 52 50 50 50 53 54 53
MIN/MAX RH 68 36 92 34 78
RH 49 55 61 66 48 39 36 49 62 69 86 86 58 42 34 41 52 65 75 72
WIND DIR SW W W W N N N NE NE E E E SE S S S S S SW SW
WIND SPD 5 5 4 3 4 5 4 2 3 4 4 4 5 5 8 5 8 10 9 9
CLOUDS FW FW FW SC SC SC SC FW FW SC SC SC SC SC SC FW SC SC SC B1
CLOUDS(%) 16 15 18 27 26 34 28 25 22 37 32 34 30 27 27 24 27 45 46 53
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 10 10 0 0
MIX HGT <1 <1 <1 <1 4 7 6 <1 <1 <1 <1 1 3 4 6 <1
T WIND DIR SW SW W W NW NW NW N NE E E E SE S S S
T WIND SPD 4 4 3 2 12 10 8 5 3 5 9 9 9 9 13 10
DISPERSION PR PR VP VP VP VP VP PR PR FR PR
ADI 2 2 2 2 57 92 59 3 2 3 4 13 34 51 97 5
MAX LVORI 2 2 3 3 1 1 1 2 3 3 5 4 1 1 1 2
STABILITY F F F A A A A G G F F A A A B F
CEILING None None None None None None None None None
STA PRES 29.50 29.49 29.54 29.50 29.56 29.62 29.67 29.58
Date 04/13Tue 04/14/26Wed 04/15/26Thu 04/16/26Fri 04/17/26
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 83 60 88 63 91 66 91 65 89
TEMP 81 77 67 62 86 81 69 65 89 85 72 67 89 84 71 66 87 82
DEWPT 51 49 50 50 51 50 50 52 52 50 52 55 52 49 52 56 55 54
RH 35 37 54 65 30 34 51 63 28 30 49 65 28 30 51 70 34 38
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC FW SC SC SC SC SC SC SC B1 SC B1 B1 SC SC SC
POP 12HR 0 0 0 0 5 0 5 5 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