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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
301 AM EDT Wed Jun 17 2026
VAZ046-172000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
301 AM EDT Wed Jun 17 2026
Date Wed 06/17/26 Thu 06/18/26 Fri 06/19/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 89 69 93 69 87
TEMP 59 65 78 84 88 82 76 74 72 75 85 90 92 83 76 73 70 72 80 84 87 81
DEWPT 57 59 57 55 53 56 57 60 64 67 68 69 70 69 68 68 67 67 66 64 59 58
MAX/MIN RH 31 87 49 90 40
RH 93 81 48 37 30 41 52 62 76 76 57 50 49 63 76 84 90 84 62 51 39 46
WIND DIR N W W W SW S S SW SW SW SW SW W SW SW SW SW W W W W NW
WIND SPD 0 3 6 9 9 5 6 10 12 13 17 17 16 12 9 8 6 5 8 10 11 8
WIND GUST 27 29 29 26 23 19 19
CLOUDS SC CL CL FW FW FW SC SC B1 B1 SC FW B1 B1 B2 B2 B2 B2 B1 SC FW FW
CLOUDS(%) 49 4 3 25 19 23 33 45 51 54 34 13 59 59 72 77 72 72 63 49 20 12
VSBY 10 10 10 10 10 10 10 10 10 10 10 7 7 6 10 10 10 10 10 10 10 10
POP 12HR 0 0 40 40 30
RAIN SHWRS SC IS IS SC SC SC SC
TSTMS SC IS IS IS
MIX HGT <1 <1 5 8 9 <1 <1 <1 <1 2 5 7 4 <1 <1 <1 <1 1 4 6 6 <1
T WIND DIR NW NW W W SW S S SW SW SW W W W SW SW W W W W N NW N
T WIND SPD 2 4 8 9 12 9 4 8 10 25 33 31 28 12 6 18 11 11 8 2 8 8
DISPERSION VP PR PR FR FR FR PR PR PR PR
ADI 1 4 49 78112 4 2 7 9 60142150 82 11 6 16 8 15 30 15 35 5
MAX LVORI 7 4 1 1 1 2 2 3 4 3 1 1 1 2 4 4 5 4 2 2 1 2
STABILITY F A B B B F F D D C C C D D D D E B C B C E
CEILING None None None None None None 5000 4300 5300 None
STA PRES 29.15 29.09 29.09 29.07 29.08 29.07 29.13 29.15 29.13 29.10
Date Sat 06/20/26Sun 06/21/26Mon 06/22/26Tue 06/23/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 61 87 61 89 67 87 66 86
TEMP 65 66 84 79 65 67 87 84 70 70 84 82 71 69 83 80
DEWPT 55 56 52 53 54 56 57 59 60 62 67 68 65 64 63 62
RH 70 70 33 41 68 68 36 43 71 76 57 63 81 84 51 54
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL FW CL FW FW FW SC B1 B1 B2 B1 SC SC SC
POP 12HR 0 0 0 5 20 70 50 20
RAIN SHWRS IS IS SC NM SC IS IS
TSTMS 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