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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Fri May 29 2026
VAZ012-300800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
401 PM EDT Fri May 29 2026
Date 05/29/26 Sat 05/30/26 Sun 05/31/26 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 51 79 47 77 52
TEMP 81 73 60 57 54 56 69 75 76 67 58 54 49 51 62 71 75 69 59 56 54 57
DEWPT 50 54 51 49 47 49 44 44 49 50 48 44 41 42 45 49 49 52 53 53 53 55
MIN/MAX RH 81 33 77 40 99
RH 34 51 72 75 77 77 40 33 39 54 69 69 74 71 54 46 40 55 80 90 96 93
WIND DIR W NW N N NW N N N N NE E E E SE SE S SW S S SW W W
WIND SPD 2 1 0 0 1 1 2 2 2 2 2 3 2 3 3 2 1 2 1 1 2 2
CLOUDS SC B1 B1 B1 B1 SC B2 B1 B1 SC B1 B1 B1 B2 SC B1 B1 B1 B1 B1 B1 B1
CLOUDS(%) 42 54 58 56 64 42 77 68 54 43 62 55 59 72 50 62 54 62 51 60 69 62
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 0 5 0 0 40
RAIN SHWRS SC SC SC
MIX HGT 5 <1 <1 <1 <1 <1 3 4 5 <1 1 <1 <1 2 3 4 6 <1
T WIND DIR W SW W W NW NW N N N N NE E SE SE S SW SW S
T WIND SPD 6 3 2 3 3 4 10 11 11 9 5 11 14 13 8 4 6 8
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 44 2 1 2 2 4 35 64 69 4 3 5 7 28 27 24 46 4
MAX LVORI 1 2 3 3 4 4 1 1 1 2 3 3 3 3 2 2 1 3
STABILITY A F F F F A A A B F F F F A A B B F
CEILING 4100 2400 27400 None 18200 2900 None 3000 None
STA PRES 27.20 27.19 27.22 27.23 27.29 27.35 27.35 27.28
Date 06/01Tue 06/02/26Wed 06/03/26Thu 06/04/26Fri 06/05/26
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 77 48 76 45 77 47 78 52 79
TEMP 73 68 54 54 71 66 50 52 72 68 52 54 76 71 57 57 77 73
DEWPT 51 50 46 47 43 44 43 43 41 44 44 44 46 50 49 50 51 54
RH 46 52 74 77 36 45 77 71 33 42 74 69 34 47 75 77 40 51
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC FW FW FW FW FW CL CL FW CL CL FW FW FW FW SC SC
POP 12HR 40 10 5 0 0 0 5 5 20
RAIN SHWRS SC IS IS
TSTMS 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