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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon May 25 2026
VAZ012-260800-
RAWS 447502
37.01N 81.18W Elev. 2540 ft
801 PM EDT Mon May 25 2026
Date 05/25/26 Tue 05/26/26 Wed 05/27/26 Thu
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 57 79 58 78 57
TEMP 63 62 60 61 69 74 74 69 64 62 60 62 70 73 74 69 63 61 58 60
DEWPT 62 60 59 60 66 65 66 65 63 61 59 61 64 63 64 64 62 60 57 59
MIN/MAX RH 97 67 97 69 97
RH 97 93 96 97 90 74 76 87 97 97 96 97 81 71 71 84 97 97 96 96
WIND DIR N N N N SW SW W SW SW SW W W W W W W W W W W
WIND SPD 0 0 0 0 1 2 1 1 1 1 1 2 3 3 3 2 2 2 2 3
CLOUDS OV OV OV B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 OV OV B1 B2 B1 B1 B1
CLOUDS(%) 92 88 91 83 78 82 72 82 68 73 76 82 82 94 94 69 71 63 64 57
VSBY 5 3 2 3 9 10 10 10 5 8 10 6 6 6 6 6
POP 12HR 50 90 50 90 50
RAIN SHWRS SC SC SC SC SC O NM SC IS NM NM O O SC SC SC SC SC
TSTMS SC NM SC SC IS SC SC IS
MIX HGT <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 3 2 <1
T WIND DIR S SW S SW S S S S S SW W W W W W W
T WIND SPD 5 5 2 1 3 5 11 11 5 6 11 18 21 27 20 9
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 3 1 1 9 21 35 5 3 3 5 19 67 98 56 4
MAX LVORI 9 9 10 10 6 3 3 6 9 9 7 5 4 3 3 5
STABILITY F F F B B B B F F F F B B B B F
CEILING 400 100 200 400 100 1200 1100 2500 1600
STA PRES 27.32 27.32 27.34 27.30 27.29 27.30 27.31 27.25
Date 05/28Fri 05/29/26Sat 05/30/26Sun 05/31/26Mon 06/01/26
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 79 51 73 51 70 48 69 46 71
TEMP 75 71 55 55 71 67 54 54 69 65 54 52 67 63 51 51 69 64
DEWPT 58 58 53 53 53 55 51 51 52 53 50 49 50 51 48 48 48 50
RH 55 63 93 93 53 65 90 90 55 65 86 89 54 65 89 89 47 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC SC SC B1 SC B1 B1 B2 B1 SC B1 B1 SC SC FW SC
POP 12HR 40 5 10 20 40 20 30 10 10
RAIN SHWRS SC IS IS IS SC SC IS IS SC SC
TSTMS 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