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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Mon May 25 2026
VAZ012-252000-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
731 AM EDT Mon May 25 2026
Date Mon 05/25/26 Tue 05/26/26 Wed 05/27/26
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 60 79 58 79
TEMP 62 66 69 71 67 63 62 61 62 68 73 74 69 64 61 59 61 70 74 74 69
DEWPT 61 64 65 65 64 62 62 61 62 66 66 66 66 64 61 59 61 66 65 66 65
MAX/MIN RH 78 100 68 100 74
RH 97 93 87 81 90 97100100100 93 79 76 90100100100100 87 74 76 87
WIND DIR SE SW W NW NE SE S S N SW SW SW N N N W W W W W W
WIND SPD 2 3 4 3 1 1 1 1 0 1 1 1 0 0 0 1 1 2 3 2 1
CLOUDS OV OV OV OV OV B2 B2 B2 B2 B2 OV OV B1 B1 B1 B2 OV OV OV OV B1
CLOUDS(%) 100 95 91 95 90 82 84 86 84 84100100 68 68 68 76 90 90100100 60
VSBY 6 6 6 6 6 6 6 6 7 6 3 3 7 7 10 10 6 6 6 6 6
POP 12HR 80 70 90 30 90
RAIN SHWRS NM NM NM O SC NM NM NM SC SC O O SC SC NM NM O O SC
TSTMS IS IS SC SC IS IS IS SC SC IS IS SC SC IS
Obvis PF PF PF F F
MIX HGT <1 2 2 2 <1 <1 <1 <1 <1 2 2 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR S W NW N N E S S W SW SW S SE S SW SW W W W W W
T WIND SPD 8 17 11 3 0 2 3 3 6 10 8 8 6 4 4 5 13 21 19 18 11
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 9 34 24 8 0 1 2 2 7 21 17 17 3 2 2 3 14 59 46 34 5
MAX LVORI 8 4 4 4 6 8 10 10 8 5 3 3 6 9 9 9 5 4 3 3 5
STABILITY D B C B F F F F B B D D F F F F B B D D F
CEILING 100 2200 1700 100 200 1400 1700 100 600 1300
STA PRES 27.31 27.31 27.32 27.33 27.36 27.31 27.31 27.30 27.29 27.24
Date Thu 05/28/26Fri 05/29/26Sat 05/30/26Sun 05/31/26
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 57 81 52 77 53 71 50 66
TEMP 61 60 76 71 56 56 73 68 57 56 70 66 55 52 65 62
DEWPT 61 60 59 60 54 55 56 58 53 53 55 56 52 51 53 53
RH 100100 56 68 93 96 55 70 86 90 59 70 90 96 65 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1
POP 12HR 40 20 0 20 30 50 40 40
RAIN SHWRS SC SC IS IS IS SC SC SC SC SC SC SC SC
TSTMS IS IS IS SC 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