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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Fri May 8 2026
VAZ018-090800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
131 AM EDT Fri May 8 2026
Date 05/07/26 Fri 05/08/26 Sat 05/09/26 Sun
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 41 71 50 75 52
TEMP 43 41 46 61 68 70 60 54 51 50 54 66 72 73 65 58 54 52 57
DEWPT 32 29 32 35 36 36 39 37 38 40 44 48 47 48 48 47 46 46 49
MIN/MAX RH 62 28 69 39 81
RH 65 62 58 38 31 29 46 52 61 68 69 52 41 41 54 67 74 80 75
WIND DIR NW NW NW W W W W SW SW W SW SW W W W W W W W
WIND SPD 3 3 2 4 5 5 1 3 3 3 3 6 9 9 4 3 3 2 2
WIND GUST 14 13 12 16 16 16 13 16 14 17 23 25 25 18 13 12
CLOUDS CL CL CL CL CL CL FW FW FW SC B2 B1 B1 FW FW FW FW SC FW
CLOUDS(%) 4 2 1 1 3 5 11 8 25 47 81 55 53 21 9 12 21 30 24
VSBY 10 10 10 10 10 10 10 10 10 10 10 9 10 10 10 9 4
POP 12HR 0 0 0 10 0
MIX HGT <1 <1 <1 4 7 7 <1 <1 <1 <1 <1 5 6 6 <1
T WIND DIR NW NW W W W W S S S SW SW W W W W
T WIND SPD 5 5 4 16 13 13 5 9 6 5 11 21 21 21 6
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 3 5 81105108 3 4 3 3 14124152147 3
MAX LVORI 3 3 3 1 1 1 2 3 3 3 3 1 1 1 2
STABILITY F F A B B B G F F F B B B B G
CEILING None None None None None 2900 None None
STA PRES 27.74 27.77 27.68 27.67 27.62 27.61 27.61
Date 05/10Mon 05/11/26Tue 05/12/26Wed 05/13/26Thu 05/14/26
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 80 56 66 41 68 49 69 50 70
TEMP 79 68 59 57 62 55 44 44 65 60 50 51 65 61 52 52 67 62
DEWPT 48 51 50 51 46 38 34 33 34 36 36 42 49 47 44 45 46 44
RH 34 54 72 80 56 53 68 65 31 41 58 71 56 60 74 77 47 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC B1 B2 B2 B1 FW CL CL FW SC B1 B2 B2 B1 SC B1 SC
POP 12HR 20 50 70 5 0 30 70 30 20
RAIN SHWRS IS IS SC NM SC SC NM NM SC IS IS IS
TSTMS IS 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