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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
431 AM EDT Sat Jun 27 2026
NCZ001-272000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
431 AM EDT Sat Jun 27 2026
Date Sat 06/27/26 Sun 06/28/26 Mon 06/29/26
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 73 63 73 63 77
TEMP 63 65 69 72 73 70 66 65 64 65 69 71 72 70 67 65 64 67 72 75 76 73
DEWPT 60 60 61 62 63 62 62 62 62 62 63 65 65 64 64 63 62 62 63 63 63 64
MAX/MIN RH 72 96 76 95 64
RH 90 84 76 71 71 76 87 90 93 90 81 81 79 81 90 93 93 84 73 66 64 73
WIND DIR W W W W W W W W W W W W NW NW NW NW NW NW N N N N
WIND SPD 8 9 10 10 10 12 13 14 13 13 10 9 9 10 8 6 5 4 4 3 3 4
CLOUDS B1 B2 B1 B2 B2 B2 B1 B1 B2 B2 B2 B1 B1 SC SC SC SC SC SC B1 B1 SC
CLOUDS(%) 65 77 62 82 85 74 66 63 73 73 74 53 62 45 41 41 47 39 30 56 56 33
VSBY 8 8 10 10 10 9 10 7 4 5 8 10 10 10 10 3 1 8 10 10 10 10
POP 12HR 70 50 40 20 30
RAIN SHWRS IS NM NM SC SC SC SC SC SC SC SC IS IS IS IS SC SC
TSTMS SC SC SC IS IS SC SC IS SC SC
MIX HGT <1 <1 2 3 3 1 <1 1 <1 1 2 3 3 1 <1 <1 <1 <1 3 5 3 <1
T WIND DIR W W W W W W W W W NW W W W W NW NW NW N N N N SE
T WIND SPD 3 3 24 23 19 19 4 8 8 10 11 13 16 11 12 11 6 5 4 4 3 1
DISPERSION PR FR FR GD FR FR PR PR PR VP
ADI 3 3 69 76 60 18 4 7 7 14 25 43 53 10 11 8 5 6 16 24 15 1
MAX LVORI 6 5 3 3 3 3 5 5 6 4 3 3 3 4 5 5 6 5 3 3 2 4
STABILITY D C C C C D D D D D C C C D D E E A A B B F
CEILING 600 1400 2000 500 500 500 None None None None
STA PRES 26.78 26.74 26.72 26.70 26.73 26.72 26.74 26.75 26.81 26.81
Date Tue 06/30/26Wed 07/01/26Thu 07/02/26Fri 07/03/26
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 64 79 65 81 67 83 68 81
TEMP 67 68 77 74 68 68 78 76 69 70 80 77 70 70 79 75
DEWPT 63 62 63 63 61 62 61 62 61 61 58 61 60 60 57 60
RH 87 81 62 69 78 81 56 62 76 73 47 58 71 71 47 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC FW FW FW CL CL FW FW CL FW FW FW FW FW B1
POP 12HR 10 10 5 10 5 20 10 30
RAIN SHWRS IS SC
TSTMS 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