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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sat May 30 2026
VAZ018-310800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
731 PM EDT Sat May 30 2026
Date 05/30/26 Sun 05/31/26 Mon 06/01/26 Tue
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 48 77 58 79 56
TEMP 66 58 51 49 54 65 74 75 67 62 60 58 63 73 78 76 67 61 58 56 59
DEWPT 51 45 44 42 44 49 52 54 55 53 53 53 56 55 52 51 52 49 47 46 48
MIN/MAX RH 79 44 84 39 70
RH 58 62 77 77 69 56 46 48 65 72 78 83 78 53 40 42 59 65 67 69 67
WIND DIR NE E E E SE S S S SE SW W W NW NW NW NW N NE NE NE NE
WIND SPD 6 6 6 4 3 4 4 4 5 4 2 2 2 3 3 3 2 1 1 1 2
WIND GUST 13 12
CLOUDS FW FW FW SC FW FW SC SC B1 SC SC B1 B1 B1 B1 SC SC SC SC SC SC
CLOUDS(%) 20 21 13 29 18 18 38 48 64 49 39 65 60 64 55 47 34 49 46 37 43
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 5 5 10
RAIN SHWRS IS
MIX HGT <1 <1 <1 <1 2 3 4 4 <1 <1 <1 <1 <1 4 5 6 <1
T WIND DIR E E E E SE S SW SW S S SW W NW NW NW N N
T WIND SPD 17 14 14 11 9 8 5 8 10 4 2 2 3 11 10 10 10
DISPERSION PR PR PR VP PR VP VP VP VP VP VP VP
ADI 8 7 7 5 18 27 30 44 5 2 1 1 4 56 60 78 5
MAX LVORI 3 3 4 4 3 2 1 1 3 3 4 5 4 1 1 1 3
STABILITY F F G G A A A A F F G F B B B A G
CEILING None None None None None 3000 2700 None None
STA PRES 27.85 27.89 27.89 27.79 27.75 27.72 27.73 27.71
Date 06/02Wed 06/03/26Thu 06/04/26Fri 06/05/26Sat 06/06/26
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 75 50 74 50 80 55 84 60 85
TEMP 73 65 54 55 72 66 54 56 78 71 58 61 82 75 63 65 83 77
DEWPT 50 50 44 46 45 49 43 47 50 54 48 52 56 59 55 57 60 62
RH 44 58 69 72 38 54 66 72 37 55 69 72 41 58 75 75 46 60
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 SC FW CL SC FW CL CL FW FW FW FW SC SC SC SC B1
POP 12HR 40 10 5 5 0 0 5 10 20
RAIN SHWRS IS SC IS
TSTMS IS SC 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