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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sun Jun 21 2026
NCZ003-220800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
731 PM EDT Sun Jun 21 2026
Date 06/21/26 Mon 06/22/26 Tue 06/23/26 Wed
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 67 91 66 85 62
TEMP 83 74 69 67 70 83 90 86 78 72 70 68 69 77 82 84 78 69 64 62 65
DEWPT 61 60 61 62 66 69 68 71 70 69 67 65 66 66 64 63 61 60 58 57 58
MIN/MAX RH 85 49 93 50 82
RH 47 62 76 84 87 63 49 61 76 90 90 90 90 69 55 49 56 73 81 84 78
WIND DIR S S SW SW SW SW SW SW SW W W W NW NW NW NW N N N N N
WIND SPD 3 3 4 4 5 8 9 8 5 4 4 4 5 6 6 8 10 8 5 5 5
WIND GUST 19
CLOUDS SC SC SC SC FW SC B1 B2 B1 B1 SC SC FW FW FW FW SC FW FW SC SC
CLOUDS(%) 31 30 48 33 17 36 55 87 57 64 50 29 25 18 23 23 28 12 16 35 36
VSBY 10 10 10 10 10 10 10 8 10 10 8 9 10 10 10 10 10 10 10 10
POP 12HR 0 80 50 10 0
RAIN SHWRS SC O SC SC
TSTMS SC NM SC IS
MIX HGT <1 <1 <1 <1 <1 4 6 3 <1 <1 <1 <1 1 4 5 6 <1
T WIND DIR SW S SW S SW SW SW SW SW W W W NW N NW N N
T WIND SPD 5 3 3 3 8 23 18 20 1 9 8 5 16 13 11 10 9
DISPERSION VP VP VP VP PR VP VP VP FR PR PR PR
ADI 3 2 2 2 9114 84 60 1 6 5 3 31 71 69 71 6
MAX LVORI 2 3 4 5 4 1 1 1 4 5 6 6 4 1 1 1 3
STABILITY G G E F A B C C E E E F A B B B E
CEILING None None None 3600 None None None None None
STA PRES 28.90 28.89 28.89 28.82 28.88 28.92 28.99 28.98
Date 06/24Thu 06/25/26Fri 06/26/26Sat 06/27/26Sun 06/28/26
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 85 64 88 67 88 67 89 68 93
TEMP 82 79 67 68 84 81 70 70 84 81 69 70 86 83 71 72 89 87
DEWPT 58 59 59 62 65 65 65 66 66 67 65 65 65 66 65 65 65 66
RH 44 50 75 81 53 58 84 87 55 63 87 84 50 57 81 79 45 50
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC FW FW SC SC B1 B1 B1 SC B1 SC SC SC B1 SC SC SC SC
POP 12HR 0 10 40 40 50 20 30 20 20
RAIN SHWRS IS SC SC IS SC SC IS IS SC IS IS
TSTMS SC IS SC IS SC 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