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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Fri May 29 2026
NCZ001-300800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
401 PM EDT Fri May 29 2026
Date 05/29/26 Sat 05/30/26 Sun 05/31/26 Mon
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 59 72 50 65 54
TEMP 72 66 61 61 62 63 64 69 69 63 58 55 52 51 54 62 65 60 56 55 56 58
DEWPT 53 55 55 56 56 56 52 47 45 50 48 45 42 42 45 49 51 51 52 52 52 54
MIN/MAX RH 84 41 73 60 88
RH 51 68 81 84 81 78 65 45 42 62 69 69 69 71 71 62 60 72 86 90 86 86
WIND DIR SW SW SW W W NW NW N NE E E E E SE S S S S SW W W W
WIND SPD 5 6 8 9 9 9 5 4 4 5 10 16 13 12 10 6 6 10 9 9 11 12
CLOUDS SC B1 B1 OV OV B2 B2 B2 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 B2 B2
CLOUDS(%) 48 57 67 88 90 83 72 70 65 62 57 63 47 66 57 56 59 59 65 67 75 70
VSBY 10 10 10 10 10 10 7 7 7 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 20 30 0 0 40
RAIN SHWRS SC IS SC SC SC
MIX HGT 4 <1 <1 <1 <1 <1 3 4 5 <1 1 1 1 2 2 3 4 <1
T WIND DIR SW S SW NW NW NW N N N N NE E SE SE S SW SW S
T WIND SPD 8 8 3 9 11 12 11 8 8 9 4 16 14 12 9 5 6 8
DISPERSION PR PR PR PR PR FR GD FR FR PR PR FR
ADI 42 5 3 8 10 15 34 43 50 6 4 14 13 22 24 20 25 7
MAX LVORI 1 3 5 4 4 4 1 1 1 3 3 3 3 3 3 2 2 3
STABILITY A E D D D C C A A E D D D D B C C D
CEILING 1800 2500 4200 23200 8300 1500 None 1000 20100
STA PRES 26.67 26.65 26.67 26.67 26.73 26.79 26.80 26.75
Date 06/01Tue 06/02/26Wed 06/03/26Thu 06/04/26Fri 06/05/26
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 68 52 67 49 68 50 74 54 75
TEMP 65 63 55 55 64 61 52 53 65 62 53 55 67 64 56 58 68 66
DEWPT 54 52 49 48 44 46 43 43 43 47 43 45 48 51 49 50 52 54
RH 68 67 80 77 48 58 71 69 45 58 69 69 50 63 77 75 57 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B2 B1 SC SC FW FW FW FW CL FW FW FW CL FW FW FW SC SC
POP 12HR 50 20 10 0 0 0 10 5 20
RAIN SHWRS SC SC IS IS
TSTMS IS 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