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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri May 8 2026
NCZ003-082000-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
801 AM EDT Fri May 8 2026
Date Fri 05/08/26 Sat 05/09/26 Sun 05/10/26
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 70 46 77 50 81
TEMP 61 67 70 64 53 50 47 51 66 74 76 71 59 53 51 55 73 77 80 74
DEWPT 36 37 38 42 42 43 43 47 53 54 53 55 52 51 49 51 54 54 54 56
MAX/MIN RH 31 91 44 94 41
RH 39 33 31 45 66 77 86 86 63 50 45 57 78 93 93 86 51 45 41 53
WIND DIR N S S S N N N N SW SW W W W NW NW N N S SW SW
WIND SPD 0 3 5 2 0 0 0 0 4 8 6 2 1 1 1 0 0 3 4 1
CLOUDS CL CL CL SC SC FW SC B2 SC SC SC FW SC SC SC SC FW SC SC SC
CLOUDS(%) 2 2 5 28 31 11 35 75 41 41 35 18 31 42 37 36 23 43 44 36
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 7 7 10
POP 12HR 0 0 5 0 20
RAIN SHWRS IS IS
TSTMS IS IS
MIX HGT 4 7 6 <1 <1 <1 <1 <1 4 6 7 <1 <1 <1 <1 <1 5 7 6 <1
T WIND DIR NW SW SW S S S SW S W W W W NW NW NW NW S S SW S
T WIND SPD 4 6 11 11 5 6 3 5 17 19 18 8 3 4 3 3 3 6 9 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 25 55 88 5 3 3 2 6 91138138 4 2 2 2 3 20 55 69 3
MAX LVORI 2 1 1 2 3 4 5 4 1 1 1 3 5 6 7 5 2 1 1 3
STABILITY A A A G G G G B A B B G G F G A A A A G
CEILING None None None None None None None None None None
STA PRES 28.13 28.06 28.04 27.99 27.98 27.96 28.04 28.07 28.10 28.05
Date Mon 05/11/26Tue 05/12/26Wed 05/13/26Thu 05/14/26
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 53 70 41 70 46 72 47 72
TEMP 58 56 66 62 45 45 67 63 50 51 69 66 52 51 70 66
DEWPT 53 52 53 44 37 36 38 42 41 44 52 53 48 46 49 49
RH 83 86 63 52 73 70 34 46 71 77 55 63 86 83 47 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B2 B1 FW CL CL CL FW SC B1 B1 SC FW SC FW
POP 12HR 30 70 5 0 20 50 20 5
RAIN SHWRS SC NM IS IS SC SC IS
TSTMS IS 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