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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
232 PM EDT Fri Apr 10 2026
NCZ001-110800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
232 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 48 67 49 69 53
TEMP 64 56 52 50 50 52 59 64 65 58 54 52 51 50 59 66 67 62 58 56 55 55
DEWPT 34 34 33 34 38 41 45 46 46 47 46 45 45 45 46 45 45 43 42 42 43 43
MIN/MAX RH 66 48 85 44 67
RH 32 43 48 54 63 66 60 52 50 67 74 77 80 83 62 47 45 50 55 59 64 64
WIND DIR W W W W NW NW NW NW NW NW NW S SE SE S S S S S S SW SW
WIND SPD 8 10 10 11 12 13 13 10 8 5 5 5 6 8 10 12 14 16 16 17 14 13
CLOUDS CL FW FW FW FW FW SC SC SC SC FW FW FW SC FW SC SC FW SC B1 B1 B1
CLOUDS(%) 4 11 11 24 10 24 28 32 35 27 21 16 15 27 22 31 27 21 34 55 56 59
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 20 5 5 0
RAIN SHWRS IS
MIX HGT 6 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 6 6 <1
T WIND DIR W W W NW NW NW NW NW W NW NW S S S SW SW SW S
T WIND SPD 6 3 4 6 6 5 16 10 5 3 1 2 2 2 13 13 16 12
DISPERSION FR FR FR FR PR PR PR PR GD GD GD GD
ADI 45 2 3 5 5 4 49 55 33 2 1 1 1 2 48 62 74 11
MAX LVORI 1 2 2 2 3 3 1 1 1 3 4 4 5 4 1 1 1 2
STABILITY B E E E E C C B A F F F F B B C C D
CEILING None None None None None None None None None None
STA PRES 26.92 26.93 26.92 26.96 26.93 26.96 26.95 26.98 26.94
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 69 53 73 55 76 56 75 56 74
TEMP 68 62 55 56 70 66 58 58 73 69 59 59 72 68 59 59 70 67
DEWPT 41 44 44 46 48 49 48 47 47 47 48 49 47 48 48 50 51 51
RH 37 52 66 69 45 54 69 67 40 45 67 69 41 49 67 72 51 56
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 B1 B1 B1 SC SC B1
POP 12HR 5 0 10 0 5 5 10 10 20
RAIN SHWRS IS
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