Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sun Sep 27 2026
NCZ003-272000-
RAWS 310302
36.35N 80.48W Elev. 1076 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 74 55 76 53 78
TEMP 63 71 71 61 58 56 55 55 65 73 73 65 60 58 55 54 68 75 77 68
DEWPT 50 51 51 48 48 49 50 50 54 57 58 56 55 54 54 54 58 58 59 59
MAX/MIN RH 46 83 56 100 52
RH 62 49 49 62 69 77 83 83 68 57 59 73 84 86 96100 70 55 54 73
WIND DIR NW NW NW NW NW NW NW NW NW NW NW NW NW NW N N NE SW SW N
WIND SPD 9 9 9 6 5 4 6 5 6 5 5 5 4 3 3 3 1 2 2 0
WIND GUST 19
CLOUDS FW FW FW FW CL CL FW FW FW SC SC FW FW FW FW FW FW CL CL CL
CLOUDS(%) 16 12 7 7 4 1 6 16 11 45 41 8 12 24 23 24 15 1 5 4
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 5 5 0
MIX HGT 2 4 4 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 4 4 <1
T WIND DIR NW NW NW NW N NW NW NW NW N N NW NW NW NW NW N NW NW SW
T WIND SPD 20 16 18 6 6 4 4 4 8 11 12 9 4 2 2 2 3 2 1 1
DISPERSION PR PR VP PR PR VP VP VP VP
ADI 56 61 71 3 3 2 2 5 27 64 70 4 2 1 1 2 15 12 5 1
MAX LVORI 1 1 1 3 3 4 5 5 3 1 1 3 5 7 8 8 3 2 2 4
STABILITY C C C F F F F B B B B F F G G B A B B G
CEILING None None None None None None None None None None
STA PRES 28.82 28.79 28.84 28.84 28.88 28.88 28.94 28.95 29.00 28.97
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 81 57 84 60 84 62 77
TEMP 58 57 79 71 61 58 81 73 63 61 81 74 65 62 74 68
DEWPT 56 56 60 60 57 56 62 62 60 59 64 65 62 60 63 63
RH 93 96 52 68 87 93 53 68 90 93 56 74 90 93 69 84
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL CL FW FW FW SC FW SC SC SC SC SC 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