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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Sun May 10 2026
NCZ001-102000-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
1001 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 65 51 59 40 61
TEMP 58 62 63 60 56 54 54 54 52 54 54 51 46 42 41 44 51 58 60 55
DEWPT 43 43 44 47 47 47 47 48 49 50 47 42 38 35 34 34 34 36 37 40
MAX/MIN RH 48 86 70 78 42
RH 57 50 50 62 72 77 77 80 89 86 77 71 73 76 76 68 52 44 42 57
WIND DIR NW W W W NW NW NW N NW NW NW NW N N N N NE S SW S
WIND SPD 9 10 11 10 8 8 8 8 5 5 8 11 9 9 8 5 6 4 4 5
CLOUDS CL CL FW SC SC B1 B2 OV B2 OV OV B2 FW FW FW FW CL CL CL FW
CLOUDS(%) 1 5 7 26 30 62 83 91 87 93 90 77 22 15 16 13 1 3 2 8
VSBY 10 10 10 10 10 10 10 10 6 9 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 20 40 0 0
RAIN SHWRS SC SC SC IS
TSTMS SC
MIX HGT 4 6 6 1 <1 <1 <1 <1 2 2 3 2 <1 <1 <1 1 4 5 5 <1
T WIND DIR NW W W W W W NW NE E E E N N N N N NE NE SE S
T WIND SPD 12 9 10 8 3 3 2 2 5 10 8 17 18 8 6 6 9 3 1 6
DISPERSION FR PR PR PR FR PR PR PR PR
ADI 59 64 69 5 2 3 2 2 14 25 26 19 12 5 5 9 42 22 7 3
MAX LVORI 1 1 1 3 3 4 4 4 4 4 3 3 3 4 4 3 1 2 2 3
STABILITY B B B E E D D C C C C D E E E A B A A F
CEILING None None 6700 1800 400 None None None None
STA PRES 26.71 26.74 26.70 26.70 26.68 26.74 26.77 26.82 26.78
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 47 62 46 61 43 69 52 76
TEMP 47 51 61 57 50 47 54 51 43 45 62 59 52 55 70 67
DEWPT 39 41 46 47 45 41 37 37 37 38 40 44 42 45 49 51
RH 74 68 58 69 83 79 52 59 79 76 44 57 69 69 47 56
WIND SPD <15 15> <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW B1 B1 SC SC SC FW FW FW FW FW SC FW FW SC
POP 12HR 0 50 20 0 0 5 10 10
RAIN SHWRS SC SC IS
TSTMS 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