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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Wed May 6 2026
VAZ018-062000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Wed May 6 2026
Date Wed 05/06/26 Thu 05/07/26 Fri 05/08/26
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 72 53 60 42 69
TEMP 63 70 70 65 61 58 55 54 55 57 58 53 50 45 42 46 59 66 68 61
DEWPT 59 60 60 57 55 52 50 50 51 49 46 41 37 35 33 36 37 36 37 40
MAX/MIN RH 56 88 56 72 31
RH 87 71 71 75 81 80 83 86 86 75 64 64 61 68 70 68 44 33 32 46
WIND DIR SW SW W W W NW NW NW NW NW NW NW NW NW NW W W W SW S
WIND SPD 11 13 12 8 6 2 1 4 5 5 8 8 4 3 2 1 3 5 5 2
WIND GUST 24 26 18 20 19 13 12 11 14 16 18
CLOUDS OV B2 B2 B2 OV OV OV OV B2 B1 SC FW FW FW CL CL CL FW FW FW
CLOUDS(%) 100 86 79 79 98 96 96 88 83 67 35 15 23 8 5 5 3 12 10 13
VSBY 7 7 7 5 3 3 3 4 6 6 6 7 7 10 10 10 10 10 10 10
POP 12HR 70 90 50 0 0
RAIN SHWRS NM SC SC NM O SC IS IS IS IS
TSTMS SC SC
Obvis PF
MIX HGT 3 3 2 <1 <1 <1 <1 1 2 3 4 2 <1 <1 <1 1 5 7 7 <1
T WIND DIR S W W W NW NW NW N N NW NW NW NW NW NW NW W W W S
T WIND SPD 12 35 27 9 6 9 5 8 10 9 14 16 16 6 4 10 14 17 14 9
DISPERSION PR PR VP VP PR VP VP VP VP
ADI 28 89 58 8 6 8 5 13 25 27 77 11 7 3 2 17 86151127 4
MAX LVORI 4 3 3 3 4 4 5 4 4 3 1 2 3 3 3 3 1 1 1 2
STABILITY D D D D D D D C C C B E F G G A A A A G
CEILING 1800 1800 900 600 1000 None None None None None
STA PRES 27.59 27.62 27.65 27.63 27.63 27.60 27.69 27.74 27.76 27.66
Date Sat 05/09/26Sun 05/10/26Mon 05/11/26Tue 05/12/26
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 74 51 77 56 66 44 66
TEMP 50 53 71 65 54 56 73 68 60 57 63 57 46 46 63 59
DEWPT 39 45 49 47 45 49 51 54 52 49 43 37 35 35 35 37
RH 66 74 46 52 71 77 46 61 75 75 48 47 65 65 35 44
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW SC SC FW FW FW SC B1 B2 B2 B1 SC SC FW FW SC
POP 12HR 10 20 5 50 60 40 5 5
RAIN SHWRS IS SC NM NM SC IS
TSTMS 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