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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
230 AM EDT Sun May 10 2026
VAZ018-110800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
230 AM EDT Sun May 10 2026
Date 05/09/26 Sun 05/10/26 Mon 05/11/26 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 52 80 54 68 42
TEMP 52 57 73 78 77 67 61 57 55 56 59 63 65 58 50 45 43 47
DEWPT 46 49 50 49 49 51 51 50 49 50 51 47 42 39 36 34 33 37
MIN/MAX RH 80 35 82 42 71
RH 80 75 44 36 37 56 70 77 80 80 75 56 43 49 58 65 67 68
WIND DIR W W W W W W NW NW N N N NW NW NW NW NW NW NW
WIND SPD 3 3 5 6 8 3 2 1 1 2 2 3 5 3 2 2 1 1
WIND GUST 13 13 19 19 21 16 16
CLOUDS CL FW CL FW FW B1 B1 SC B2 OV OV OV B1 FW FW FW FW FW
CLOUDS(%) 3 6 2 17 23 56 54 31 77 92 90 91 66 24 10 9 14 8
VSBY 10 10 10 10 10 10 9 6 8 5 5 9 10 9 9 9 9 10
POP 12HR 0 10 60 70 0
RAIN SHWRS NM NM NM
MIX HGT <1 <1 5 8 7 <1 <1 <1 <1 1 2 3 5 <1 <1 <1 <1 <1
T WIND DIR W W W W W NW NW N NE NE NE NE NE N N NW NW NW
T WIND SPD 5 4 18 17 18 14 3 3 4 16 18 9 5 5 5 5 4 3
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 3 4111141140 7 2 2 2 25 46 35 24 3 3 3 2 4
MAX LVORI 4 4 1 1 1 3 3 4 5 3 3 1 2 2 3 3 3 3
STABILITY G A A B B F F G F B B B C G G G G A
CEILING None None None None 2300 400 500 None None
STA PRES 27.72 27.78 27.75 27.81 27.82 27.90 27.86 27.88 27.91
Date 05/12Wed 05/13/26Thu 05/14/26Fri 05/15/26Sat 05/16/26
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 72 50 72 48 65 44 74 53 83
TEMP 69 63 51 54 68 64 53 51 64 59 48 49 71 67 55 58 80 75
DEWPT 38 41 38 43 51 50 45 43 41 39 38 40 44 46 44 48 53 54
RH 32 44 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 <15
AVG CLOUDS CL FW FW SC B1 B2 B1 FW SC FW FW CL FW FW FW FW SC SC
POP 12HR 0 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