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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Thu Jun 18 2026
NCZ003-190800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Thu Jun 18 2026
Date 06/18/26 Fri 06/19/26 Sat 06/20/26 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 67 83 59 84 61
TEMP 73 72 68 68 74 80 82 76 67 62 59 63 74 81 84 78 68 63 62 65
DEWPT 68 69 68 68 69 65 61 59 57 56 55 57 58 56 56 59 58 57 56 59
MIN/MAX RH 100 49 86 39 83
RH 84 90100100 84 60 49 56 70 81 87 81 57 42 38 52 70 81 81 81
WIND DIR W SW SW N NW NW NW NW NW NW NW NW NW NW NW NW NW NW N N
WIND SPD 9 9 6 5 5 9 10 8 6 4 5 4 5 5 5 4 4 3 3 2
CLOUDS OV OV OV OV B1 FW FW FW FW SC SC SC FW FW FW SC FW FW FW FW
CLOUDS(%) 91100100 95 60 24 25 17 8 29 49 28 25 11 16 35 25 18 15 8
VSBY 10 8 5 7 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 20 0 0 0
RAIN SHWRS O O NM IS
TSTMS IS
MIX HGT <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR W SW SE N NW NW NW NW NW N N W NW W W SW
T WIND SPD 12 12 5 4 16 19 19 10 6 3 2 1 3 5 6 8
DISPERSION PR PR PR PR PR VP PR VP VP VP VP
ADI 11 11 5 5 53121136 7 3 2 2 1 19 45 58 4
MAX LVORI 5 6 9 9 4 1 1 2 3 5 6 5 2 1 1 2
STABILITY D D D C C B B E F F E A A A A F
CEILING 2400 300 None None None None None None None
STA PRES 28.79 28.72 28.75 28.80 28.92 28.95 28.98 28.91
Date 06/21Mon 06/22/26Tue 06/23/26Wed 06/24/26Thu 06/25/26
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 87 67 86 66 84 61 83 62 85
TEMP 85 84 71 69 81 79 69 68 82 77 65 64 80 78 66 65 82 78
DEWPT 60 63 64 66 69 70 67 66 64 63 60 59 61 63 61 62 62 63
RH 43 49 79 90 67 74 93 93 55 62 84 84 52 60 84 90 51 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 SC B1 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC
POP 12HR 5 10 80 40 20 10 20 20 20
RAIN SHWRS SC O SC IS IS IS IS IS
TSTMS SC SC IS IS IS 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