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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 AM EDT Fri May 8 2026
NCZ003-090800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
1201 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 70 46 77 50
TEMP 46 42 45 61 67 70 64 53 50 47 51 66 74 76 71 59 53 51 55
DEWPT 37 33 36 38 40 41 45 44 45 44 47 53 54 53 55 52 51 49 51
MIN/MAX RH 74 35 91 44 94
RH 71 70 70 42 37 35 50 71 83 89 86 63 50 45 57 78 93 93 86
WIND DIR NW NW N N S S S N N N N SW SW W W W NW NW N
WIND SPD 2 1 0 0 3 5 2 0 0 0 0 4 8 6 2 1 1 1 0
CLOUDS FW FW CL CL CL CL SC SC FW SC B2 SC SC SC FW SC SC SC SC
CLOUDS(%) 12 19 2 2 2 5 28 31 11 35 75 41 41 35 18 31 42 37 36
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 6
POP 12HR 0 0 0 5 0
MIX HGT <1 <1 <1 4 6 7 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR NW N NW NW SW SW S S S SW S W W W W
T WIND SPD 5 5 4 4 6 11 11 5 6 3 5 17 19 18 8
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 3 4 24 54 82 5 3 3 2 6 81147134 4
MAX LVORI 3 3 3 2 1 1 2 3 5 6 4 1 1 1 3
STABILITY G G A A A B F G G F B A B B G
CEILING None None None None None None None None
STA PRES 28.09 28.13 28.06 28.04 27.99 27.98 27.96
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 81 53 70 41 70 46 73 47 73
TEMP 77 74 58 56 66 60 45 44 67 64 49 50 69 66 51 51 70 67
DEWPT 54 56 53 52 53 44 37 36 38 42 41 44 52 53 48 46 49 49
RH 45 53 83 86 63 55 73 73 34 45 74 80 55 63 89 83 47 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC B1 B2 B1 FW CL CL FW FW SC B1 B1 SC FW FW FW
POP 12HR 20 30 70 5 0 20 50 20 5
RAIN SHWRS IS SC NM IS IS SC SC IS
TSTMS IS 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