Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Tue Oct 27 2026
VAZ046-272000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
801 AM EDT Tue Oct 27 2026
Date Tue 10/27/26 Wed 10/28/26 Thu 10/29/26
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 72 45 68 48 74
TEMP 64 70 70 58 52 49 47 47 59 67 67 57 53 52 50 49 64 71 73 62
DEWPT 47 48 49 50 50 49 47 47 51 51 52 52 52 52 50 49 57 57 55 56
MAX/MIN RH 44 100 55 100 54
RH 54 45 47 75 93100100100 75 56 59 83 96100100100 78 61 53 81
WIND DIR NE NE E E E E NE NE NE E E E NE NE N NW SW SW SW S
WIND SPD 5 6 5 3 2 2 2 3 4 3 3 1 1 1 0 1 2 4 3 2
CLOUDS CL CL CL CL FW FW B1 B1 B1 B1 B2 B1 B1 B1 B1 SC SC FW FW CL
CLOUDS(%) 1 2 2 4 11 20 51 53 56 67 83 60 68 62 62 48 29 12 6 0
VSBY 10 10 10 10 10 9 7 7 8 10
POP 12HR 0 0 0 0 0
MIX HGT 2 4 3 <1 <1 <1 <1 <1 2 3 2 <1 <1 <1 <1 <1 2 4 3 <1
T WIND DIR NE E NE NE NE E NE E E E SE SE SE N N NW SW SW SW SW
T WIND SPD 13 9 5 4 5 5 4 5 4 4 5 3 1 0 2 1 5 10 6 2
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 34 40 24 2 3 3 2 4 9 19 17 2 1 0 1 1 16 46 26 1
MAX LVORI 1 1 2 4 6 9 9 9 4 2 2 5 9 10 10 10 3 1 2 5
STABILITY B B B G G G F C D B B F F F F A B B B G
CEILING None None None None 700 19500 700 600 None None
STA PRES 29.60 29.58 29.62 29.66 29.70 29.66 29.65 29.62 29.60 29.52
Date Fri 10/30/26Sat 10/31/26Sun 11/01/26Mon 11/02/26
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 47 79 50 71 50 68 55 72
TEMP 52 48 78 66 54 51 69 62 52 52 66 62 58 56 69 64
DEWPT 52 48 53 55 53 51 44 47 52 52 59 59 58 56 62 61
RH 100100 42 68 96100 40 58100100 78 90100100 78 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW FW B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
POP 12HR 0 0 0 0 10 40 60 40
RAIN SHWRS SC SC NM SC 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