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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 PM EDT Sun Jun 21 2026
VAZ046-220800-
RAWS 441101
37.39N 78.80W Elev. 804 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 94 67 86 61
TEMP 85 75 70 67 72 87 93 89 79 73 71 69 71 81 85 83 78 69 65 62 66
DEWPT 62 60 59 58 62 68 67 70 72 70 68 67 68 67 67 66 65 63 59 57 59
MIN/MAX RH 74 43 95 53 85
RH 46 60 68 73 71 53 43 54 79 90 90 93 90 63 55 57 64 81 81 84 78
WIND DIR S SE E S SW SW SW SW S SW W W NW NW NW N N N N N N
WIND SPD 2 2 2 2 4 11 13 10 5 5 5 5 5 6 6 6 4 4 3 3 3
WIND GUST 21 24 16
CLOUDS SC SC B1 B1 FW SC SC B2 B2 B1 SC FW FW FW B1 B1 SC SC FW FW FW
CLOUDS(%) 45 50 55 54 10 27 49 81 84 65 34 13 25 23 63 63 42 37 24 24 12
VSBY 10 10 10 10 10 10 10 10 9 10 10 9 10 10 10 10 10 10 10 10
POP 12HR 5 80 50 50 5
RAIN SHWRS IS NM SC SC SC SC
TSTMS IS NM SC IS SC SC
MIX HGT <1 <1 <1 <1 1 5 6 5 <1 <1 <1 <1 2 4 6 4 <1
T WIND DIR N E NE E SW SW SW SW W S SW W N N N N N
T WIND SPD 0 2 2 1 12 25 25 25 25 5 6 6 18 16 11 11 14
DISPERSION VP VP VP VP PR PR PR PR VP VP VP VP
ADI 0 1 1 1 18108115102 17 4 3 3 39 83 50 45 10
MAX LVORI 2 3 3 4 3 1 1 1 3 6 6 6 4 1 1 1 2
STABILITY F F F F A C C C E E F F A B C C E
CEILING None None None 4700 9500 None None 4700 None
STA PRES 29.24 29.23 29.21 29.15 29.18 29.21 29.30 29.31
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 86 63 89 68 90 67 90 68 93
TEMP 84 79 65 68 86 82 71 72 88 83 70 71 88 84 71 73 91 87
DEWPT 58 60 58 63 65 65 64 66 67 68 65 65 65 66 65 65 66 67
RH 41 52 78 84 50 56 79 81 50 61 84 81 47 55 81 76 44 52
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW FW B1 B1 SC B1 B1 B1 SC SC SC SC SC SC SC
POP 12HR 0 5 30 40 40 30 20 20 20
RAIN SHWRS SC SC IS SC SC SC IS IS IS IS
TSTMS SC SC SC IS 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