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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 PM EDT Tue May 26 2026
VAZ012-262000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
131 PM EDT Tue May 26 2026
Date Tue 05/26/26 Wed 05/27/26 Thu 05/28/26
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 79 59 77 57 76
TEMP 74 74 69 64 63 61 61 69 74 75 69 63 61 60 60 68 74 76 69
DEWPT 64 66 65 63 62 60 61 64 63 64 63 61 60 58 59 62 59 57 57
MAX/MIN RH 65 100 60 97 51
RH 71 76 87 97 97 97100 84 69 69 81 93 97 93 96 81 59 52 66
WIND DIR SW SW S S SW W W W W W W W W W W NW N N N
WIND SPD 2 1 1 1 1 1 2 3 4 3 2 2 2 2 3 3 3 3 2
CLOUDS B2 OV B2 B2 B2 B2 B2 B1 B1 B1 B2 SC B1 B1 B1 B1 SC SC SC
CLOUDS(%) 81 91 75 75 71 77 72 58 59 66 77 45 57 57 65 65 44 35 41
VSBY 10 10 8 6 7 8 10 7 3 6 10 6 4 3 8 8 8 8 8
POP 12HR 60 70 70 70 50
RAIN SHWRS SC NM NM SC IS IS SC SC NM SC SC SC SC
TSTMS IS SC SC IS SC SC IS IS
MIX HGT 2 2 <1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 1 2 4 5 <1
T WIND DIR S S S SW SW SW W W W W W W NW NW NW N N N N
T WIND SPD 9 11 6 6 4 4 8 26 21 19 8 5 8 8 8 9 13 14 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 28 24 3 3 2 2 8 78 75 82 4 3 4 4 12 28 70 93 5
MAX LVORI 3 3 6 9 9 9 8 4 1 1 5 6 6 6 5 3 1 1 3
STABILITY B B F F F F B B C B F F F F B B A A F
CEILING 1400 600 3100 3500 2500 None 100 600 None
STA PRES 27.30 27.31 27.31 27.31 27.24 27.24 27.25 27.27 27.25
Date Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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 50 78 52 76 49 74 48 73
TEMP 54 55 74 70 55 56 73 69 54 53 70 67 52 53 70 66
DEWPT 51 52 52 55 51 52 52 54 49 49 51 52 48 49 49 49
RH 90 90 46 59 86 86 48 59 83 86 51 59 86 86 47 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC
POP 12HR 0 5 5 20 10 20 10 20
RAIN SHWRS IS IS 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