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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
831 PM EDT Tue May 5 2026
NCZ003-060800-
RAWS 310301
36.48N 80.86W Elev. 1300 ft
831 PM EDT Tue May 5 2026
Date 05/05/26 Wed 05/06/26 Thu 05/07/26 Fri
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 56 75 57 71 42
TEMP 64 60 58 58 64 72 73 71 65 62 59 58 62 67 66 61 55 48 44 46
DEWPT 46 48 51 53 57 61 62 63 62 61 59 58 60 60 58 52 46 42 38 38
MIN/MAX RH 87 66 100 73 80
RH 52 64 77 83 78 68 68 76 90 97100100 93 78 75 72 72 80 79 73
WIND DIR S S S S S SW SW SW W N SW NW NW NW NW NW NW NW N N
WIND SPD 3 4 4 4 6 8 8 2 2 0 1 2 2 5 6 5 4 3 2 2
WIND GUST 16 18 18 17 14 13
CLOUDS SC B1 B2 OV OV OV OV OV OV OV OV OV B2 B2 B2 B1 B1 SC SC SC
CLOUDS(%) 38 54 87 97 99 96 96 89 88 98 98 90 86 83 83 62 53 43 34 34
VSBY 10 10 7 6 7 6 6 3 3 3 3 6 6 6 6 7 7 10 10 10
POP 12HR 50 90 100 80 30
RAIN SHWRS SC NM IS NM O NM O O O O O NM NM SC SC
TSTMS SC SC SC SC SC
MIX HGT <1 <1 1 1 3 4 3 <1 <1 <1 <1 1 2 4 4 <1
T WIND DIR S S S S S SW W SW W N NE E N S NW NW
T WIND SPD 11 10 16 11 13 14 18 9 2 6 6 2 4 3 6 23
DISPERSION VP VP VP VP VP VP VP PR VP VP VP
ADI 5 7 11 21 40 53 55 4 1 3 3 3 13 13 34 15
MAX LVORI 2 3 4 4 3 1 1 4 7 8 9 9 5 4 3 3
STABILITY F E E C C C C F F F F B B C B E
CEILING None 3000 700 400 400 300 1200 7900 None
STA PRES 28.03 27.99 28.00 28.01 27.99 27.96 27.91 27.90
Date 05/08Sat 05/09/26Sun 05/10/26Mon 05/11/26Tue 05/12/26
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 46 75 49 80 54 75 45 72
TEMP 66 63 50 50 71 69 54 55 75 74 60 58 71 67 50 48 69 65
DEWPT 41 47 44 46 53 54 50 51 56 59 56 54 55 49 42 40 42 44
RH 40 56 80 86 53 59 86 86 52 59 87 86 57 52 74 74 37 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC FW FW FW SC B1 B1 B1 B1 SC FW FW FW
POP 12HR 10 5 10 5 30 40 50 20 5
RAIN SHWRS SC SC SC SC SC IS
TSTMS SC 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