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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Sep 27 2026
VAZ018-272000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
801 AM EDT Sun Sep 27 2026
Date Sun 09/27/26 Mon 09/28/26 Tue 09/29/26
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 69 55 70 54 78
TEMP 63 69 68 60 58 57 56 55 64 70 69 60 57 56 55 55 70 77 76 63
DEWPT 52 53 52 49 51 51 51 50 56 59 58 55 54 54 53 53 59 60 58 57
MAX/MIN RH 56 88 68 95 53
RH 67 57 57 67 77 80 83 83 75 68 68 84 90 93 93 93 68 56 54 81
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW W NW E
WIND SPD 10 9 10 9 6 6 6 6 6 5 6 5 3 2 2 2 1 1 1 1
WIND GUST 29 26 27 25 23 20 23 24 19 16 17 17
CLOUDS SC FW SC SC FW SC B2 B2 B2 B2 B2 B1 B2 B2 B2 B2 B2 B1 SC FW
CLOUDS(%) 37 8 35 35 25 45 79 85 76 72 70 67 76 74 70 82 70 55 33 18
VSBY 10 10 10 10 10 10 10 6 9 9 9 10 10 10 10 10 10 10 10 10
POP 12HR 5 20 10 20 0
RAIN SHWRS IS IS IS IS IS IS
MIX HGT 2 3 3 1 <1 <1 <1 <1 2 3 3 <1 <1 <1 <1 <1 4 5 4 <1
T WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW NW
T WIND SPD 20 23 24 23 9 12 13 12 14 17 17 11 10 8 5 5 5 4 2 2
DISPERSION PR PR PR PR PR VP VP VP VP
ADI 53 80 81 15 4 8 9 14 31 44 43 8 5 4 3 4 21 19 13 1
MAX LVORI 1 1 1 3 4 4 4 4 3 1 1 4 6 6 6 6 3 2 2 4
STABILITY C C C E F E E D D D D E F F F C C C A G
CEILING None None None 1600 1400 2200 1500 1500 1200 None
STA PRES 27.65 27.64 27.67 27.67 27.72 27.73 27.77 27.78 27.83 27.81
Date Wed 09/30/26Thu 10/01/26Fri 10/02/26Sat 10/03/26
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 55 82 57 85 62 83 61 74
TEMP 58 56 80 69 60 58 83 72 64 63 81 71 64 62 73 66
DEWPT 55 53 57 55 53 52 58 57 57 57 63 61 59 57 61 59
RH 90 90 45 61 78 80 43 59 78 81 54 71 84 84 66 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 B2
POP 12HR 0 0 0 0 5 20 20 30
RAIN SHWRS IS IS 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