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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Jun 19 2026
NCZ003-192000-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 AM EDT Fri Jun 19 2026
Date Fri 06/19/26 Sat 06/20/26 Sun 06/21/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 82 58 84 61 88
TEMP 76 79 80 74 66 61 59 62 74 81 83 78 68 63 61 65 79 85 87 82
DEWPT 65 59 55 54 57 56 55 57 58 57 57 60 59 58 57 59 61 61 61 63
MAX/MIN RH 43 87 41 85 41
RH 69 50 42 50 73 84 87 84 57 44 41 54 73 84 87 81 54 45 42 53
WIND DIR NW NW NW NW NW NW NW NW NW W W NW NW NW N N S SW SW S
WIND SPD 8 11 11 9 5 5 4 4 4 5 5 4 4 3 3 2 3 6 8 9
CLOUDS B1 FW FW CL CL CL FW FW SC SC FW FW FW FW FW FW FW FW FW SC
CLOUDS(%) 57 22 11 4 5 5 21 22 29 40 8 6 10 7 8 8 13 17 22 40
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 0 0 0 0
RAIN SHWRS
MIX HGT 3 5 6 <1 <1 <1 <1 <1 4 7 7 <1 <1 <1 <1 <1 5 7 7 <1
T WIND DIR NW NW NW NW NW NW NW NW NW W W SW W N N N S SW SW S
T WIND SPD 17 16 18 12 4 2 2 3 5 8 8 2 1 2 3 1 10 13 11 9
DISPERSION PR PR PR VP VP VP VP VP PR
ADI 68 68 80 8 2 1 2 3 32 64 69 1 1 1 2 1 60105 88 6
MAX LVORI 4 1 1 2 3 5 6 5 1 1 1 2 4 5 5 5 1 1 1 2
STABILITY B C C E F F E A A A A F F G G A A B B E
CEILING None None None None None None None None None None
STA PRES 28.81 28.83 28.92 28.95 28.96 28.90 28.91 28.91 28.92 28.88
Date Mon 06/22/26Tue 06/23/26Wed 06/24/26Thu 06/25/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 68 87 66 85 61 85 63 87
TEMP 70 70 86 80 70 68 82 78 64 65 81 78 66 66 84 80
DEWPT 65 67 70 70 67 65 64 62 59 59 60 62 61 62 62 63
RH 84 90 59 72 90 90 55 58 84 81 49 58 84 87 48 56
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 OV B1 SC SC SC SC SC SC SC SC SC FW SC
POP 12HR 20 80 50 20 10 20 20 20
RAIN SHWRS IS SC O SC IS IS IS IS
TSTMS IS NM 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