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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1101 PM EDT Thu Jun 18 2026
NCZ003-190800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1101 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 66 83 58 85 60
TEMP 70 68 69 76 81 82 77 66 62 59 63 76 82 85 79 67 63 61 66
DEWPT 68 67 69 68 64 60 58 57 55 54 56 57 56 56 59 58 56 55 58
MIN/MAX RH 100 47 85 37 83
RH 93 97100 76 56 47 52 73 78 83 78 52 41 37 50 73 78 81 75
WIND DIR N N NE NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW N
WIND SPD 0 0 1 6 10 9 6 3 2 2 2 4 5 5 2 1 1 1 0
WIND GUST 20 18
CLOUDS OV OV OV FW FW FW FW FW SC B1 SC FW FW FW SC FW FW FW FW
CLOUDS(%) 100100 95 25 16 25 14 10 28 51 33 15 16 20 31 17 14 17 10
VSBY 8 5 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 90 20 0 0 0
RAIN SHWRS O SC IS
TSTMS
Obvis PF PF
MIX HGT <1 <1 1 3 5 6 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR SW E N NW NW NW NW NW N N N NW W W SW
T WIND SPD 8 5 9 26 21 20 12 6 6 5 5 5 5 4 8
DISPERSION VP VP PR VP VP VP VP VP VP VP
ADI 7 5 14102130137 6 3 3 3 8 32 46 37 4
MAX LVORI 6 9 5 3 1 1 2 3 4 5 4 1 1 1 2
STABILITY D D B B B B F G G F A A A A G
CEILING 300 None None None None None None None
STA PRES 27.90 27.95 28.00 28.10 28.13 28.15 28.09
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 88 65 87 64 84 60 84 61 85
TEMP 86 84 69 70 81 80 68 68 82 78 64 65 81 79 65 66 83 79
DEWPT 59 63 62 66 70 70 66 65 64 63 59 59 60 63 60 61 62 64
RH 40 49 78 87 69 72 93 90 55 60 84 81 49 58 84 84 49 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC SC B2 OV B2 B1 SC SC SC SC SC SC SC SC SC B1
POP 12HR 5 10 90 40 20 10 20 10 30
RAIN SHWRS NM O SC IS IS IS SC
TSTMS IS SC SC IS IS SC
$$
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
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