Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
731 AM EDT Sun Sep 27 2026
VAZ046-272000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
731 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 76 58 74 60 78
TEMP 57 68 74 74 66 63 61 59 59 69 74 74 67 65 63 61 61 73 77 76 68
DEWPT 50 52 52 52 52 54 54 52 54 57 59 58 59 60 59 58 59 61 61 60 61
MAX/MIN RH 45 81 59 94 55
RH 77 57 46 46 61 72 78 78 83 66 59 57 75 84 87 90 93 66 58 58 78
WIND DIR W NW NW NW NW NW W W W NW NW NW NE NE NE N NW N SW SE E
WIND SPD 6 9 9 9 4 3 3 3 3 3 4 3 2 2 2 1 2 2 2 2 2
CLOUDS B1 SC SC B1 B2 B2 B2 OV OV B1 B2 B1 B2 B2 OV B2 B2 B2 B1 SC SC
CLOUDS(%) 62 49 45 59 81 79 82 92 88 67 84 69 81 87 94 77 75 70 69 42 26
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 10 20 20 20 0
RAIN SHWRS IS IS IS IS IS IS IS IS IS IS
MIX HGT <1 3 5 5 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 5 4 <1
T WIND DIR W NW NW NW N NW W W W N NW NW N NE N N N NW NW W E
T WIND SPD 11 17 17 19 18 4 5 2 2 3 4 4 9 10 5 1 3 4 4 1 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 9 53 74 81 12 2 3 1 2 11 14 19 4 5 3 1 3 14 18 6 1
MAX LVORI 4 1 1 1 2 3 4 4 5 3 2 2 4 5 6 7 6 2 2 3 4
STABILITY C C C C E F F F C C D C F F F F C C C B G
CEILING None 10800 3500 3200 3400 3300 2900 3300 3400 None
STA PRES 29.08 29.08 29.14 29.15 29.20 29.20 29.27 29.29 29.34 29.32
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 58 83 60 87 64 86 62 75
TEMP 61 60 82 73 64 61 85 77 67 65 84 75 66 63 73 68
DEWPT 60 59 60 59 58 57 59 59 59 60 63 64 61 57 60 60
RH 97 96 47 62 81 87 41 54 75 84 49 69 84 81 64 76
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC FW SC SC SC SC B1 B1 B1 B1 B2
POP 12HR 0 0 0 0 5 10 20 20
RAIN SHWRS 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