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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Sat May 30 2026
NCZ003-310800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
801 PM EDT Sat May 30 2026
Date 05/30/26 Sun 05/31/26 Mon 06/01/26 Tue
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 74 57 79 56
TEMP 63 58 57 58 64 71 74 70 64 62 60 61 71 76 78 73 64 60 57 59
DEWPT 48 46 46 48 50 53 55 57 57 57 57 59 62 60 58 58 55 53 51 52
MIN/MAX RH 72 51 95 50 83
RH 58 64 67 69 60 53 51 63 78 84 90 93 73 58 50 59 73 78 80 78
WIND DIR NE E NE NE E S S S SW SW SW SW W NW N N NE NE NE NE
WIND SPD 13 10 5 4 3 3 4 4 5 6 5 4 4 4 4 5 6 6 8 8
CLOUDS B2 B1 B1 SC B1 B2 B1 B1 SC SC B2 B2 B1 B1 B1 SC B1 B1 SC SC
CLOUDS(%) 75 62 59 45 51 73 53 51 41 45 86 86 66 68 68 45 56 54 48 42
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 30 50 20
RAIN SHWRS SC SC SC SC IS IS IS IS
TSTMS IS IS
MIX HGT <1 <1 <1 1 3 4 4 <1 <1 <1 <1 1 3 5 5 <1
T WIND DIR NE E E E SE S SW SW SW SW SW SW W N NW N
T WIND SPD 18 12 12 12 5 5 9 11 11 9 5 2 3 8 9 5
DISPERSION FR FR PR VP PR PR PR PR PR PR PR
ADI 16 11 8 24 25 32 51 8 5 6 4 3 10 33 54 4
MAX LVORI 2 2 3 3 2 1 1 3 4 4 6 6 3 1 1 3
STABILITY D D E C A A A E F E E C C C B E
CEILING 14200 None 4400 None None 1200 2400 6900 None
STA PRES 28.96 29.05 29.08 29.00 28.97 28.91 28.88 28.85
Date 06/02Wed 06/03/26Thu 06/04/26Fri 06/05/26Sat 06/06/26
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 75 51 75 52 80 56 84 60 86
TEMP 71 68 55 55 72 69 55 57 77 74 60 61 82 78 64 64 83 79
DEWPT 52 52 49 49 46 49 47 49 50 53 53 54 56 57 57 58 60 61
RH 51 57 80 80 39 49 74 75 39 48 78 78 41 48 78 81 46 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC FW CL FW FW FW CL CL FW FW SC SC SC SC SC SC
POP 12HR 20 10 5 5 0 0 5 5 20
RAIN SHWRS IS IS
TSTMS IS 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