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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun May 10 2026
VAZ018-102000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Sun May 10 2026
Date Sun 05/10/26 Mon 05/11/26 Tue 05/12/26
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 80 54 68 42 72
TEMP 73 78 77 67 61 57 55 56 59 63 65 58 50 45 43 47 62 69 71 63
DEWPT 50 49 49 51 51 50 49 50 51 47 42 39 36 34 33 37 38 38 38 41
MAX/MIN RH 35 82 42 71 29
RH 44 36 37 56 70 77 80 80 75 56 43 49 58 65 67 68 41 32 30 44
WIND DIR W W W W NW NW N N N NW NW NW NW NW NW NW N W SW S
WIND SPD 5 6 8 3 2 1 1 2 2 3 5 3 2 2 1 1 2 3 3 2
WIND GUST 19 19 21 16 16
CLOUDS CL FW FW B1 B1 SC B2 OV OV OV B1 FW FW FW FW FW CL CL CL FW
CLOUDS(%) 2 17 23 56 54 31 77 92 90 91 66 24 10 9 14 8 1 3 5 12
VSBY 10 10 10 10 10 5 3 8 7 10 10 9 9 9 9 10 10 10 10 10
POP 12HR 10 60 70 0 0
RAIN SHWRS NM NM NM
MIX HGT 5 8 7 <1 <1 <1 <1 1 2 3 5 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR W W W NW NW N NE NE NE NE NE N N NW NW NW N N SW SE
T WIND SPD 18 17 18 14 3 3 4 16 18 9 5 5 5 5 4 3 6 3 2 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 111141140 7 2 2 2 25 46 35 24 3 3 3 2 4 38 25 16 2
MAX LVORI 1 1 1 3 3 4 5 3 3 1 2 2 3 3 3 3 1 2 2 2
STABILITY A B B F F G F B B B C G G G G A A A A G
CEILING None None None 2300 400 500 None None None None
STA PRES 27.78 27.75 27.81 27.82 27.90 27.86 27.88 27.91 27.94 27.89
Date Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
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 72 48 65 44 74 53 83
TEMP 51 54 68 64 53 51 64 59 48 49 71 67 55 58 80 75
DEWPT 38 43 51 50 45 43 41 39 38 40 44 46 44 48 53 54
RH 61 66 54 60 74 74 43 47 68 71 38 47 66 69 39 48
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B1 FW SC FW FW CL FW FW FW FW SC SC
POP 12HR 5 70 30 5 0 5 10 10
RAIN SHWRS SC NM SC
TSTMS 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