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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1001 AM EDT Sun May 10 2026
NCZ003-102000-
RAWS 310301
36.48N 80.86W Elev. 1300 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 83 52 69 42 73
TEMP 74 80 80 72 62 58 56 57 62 64 65 62 53 47 43 47 62 69 72 67
DEWPT 50 48 50 54 52 52 51 52 56 56 54 50 44 40 37 39 41 43 42 46
MAX/MIN RH 33 89 61 80 34
RH 43 33 35 53 70 80 83 83 81 75 68 65 71 76 79 74 46 39 34 47
WIND DIR NW SW W NW N NW N N N NE N N N N N N E SE S N
WIND SPD 3 4 4 1 0 1 1 2 3 3 3 1 1 2 2 1 2 2 3 0
CLOUDS CL FW FW SC SC B1 B2 OV OV OV OV B2 SC FW FW FW CL CL CL FW
CLOUDS(%) 5 15 16 30 32 56 70 89 90 90 91 81 26 18 10 9 2 2 5 7
VSBY 10 10 10 10 10 10 10 10 7 6 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 20 50 5 0
RAIN SHWRS SC SC SC
TSTMS SC
MIX HGT 6 9 8 <1 <1 <1 <1 1 2 2 3 <1 <1 <1 <1 1 5 6 6 <1
T WIND DIR NW W W SW W NW N E E NE NE N N N N N NE NE SE S
T WIND SPD 11 8 8 3 2 3 3 12 14 13 12 16 12 10 8 11 10 3 1 6
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 83 80 74 2 1 2 2 18 35 35 53 7 6 5 4 17 63 26 9 3
MAX LVORI 1 1 1 2 3 4 5 4 3 3 1 3 3 4 5 3 1 2 2 2
STABILITY A A A G G F F B B B B F G G G A A A A G
CEILING None None 9800 4800 2800 None None None None
STA PRES 28.09 28.13 28.12 28.16 28.15 28.20 28.24 28.28 28.23
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 75 47 70 45 77 51 85
TEMP 50 52 73 67 54 51 68 64 49 49 73 71 55 57 82 78
DEWPT 43 44 53 56 49 45 43 43 41 41 45 49 47 48 54 56
RH 77 74 49 68 83 80 40 46 74 74 37 46 74 72 38 47
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW B1 B2 SC FW FW FW FW FW FW FW SC FW FW FW
POP 12HR 0 60 20 0 0 0 5 10
RAIN SHWRS SC NM 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