Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 AM EDT Wed Sep 30 2026
NCZ001-010800-
RAWS 310142
36.40N 81.46W Elev. 4608 ft
231 AM EDT Wed Sep 30 2026
Date 09/29/26 Wed 09/30/26 Thu 10/01/26 Fri
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
MIN/MAX TEMP 53 71 54 73 57
TEMP 53 53 62 69 68 59 58 57 55 55 65 71 71 61 60 59 58 58
DEWPT 49 48 51 52 53 54 51 49 48 47 49 51 52 54 54 54 53 52
MIN/MAX RH 96 54 82 47 82
RH 86 83 67 55 59 83 77 75 77 74 56 49 51 78 81 83 83 80
WIND DIR SW SW W S S S S S SW W W SW S S S SW SW W
WIND SPD 5 4 3 3 5 4 6 8 6 5 3 3 4 4 6 9 8 8
CLOUDS FW FW FW SC FW SC SC FW FW SC FW SC SC FW FW FW FW FW
CLOUDS(%) 11 9 10 47 15 33 30 7 13 31 25 28 31 23 17 15 17 19
VSBY 2 2 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT <1 <1 2 4 4 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1
T WIND DIR SW W W SW SW S S SW W W NW SW S S SW SW W W
T WIND SPD 3 2 5 4 3 3 3 4 3 3 4 4 6 5 4 5 3 5
DISPERSION PR VP PR PR PR VP PR PR PR
ADI 2 2 18 22 15 2 2 3 2 4 17 27 36 3 2 4 2 6
MAX LVORI 5 5 3 2 2 5 4 4 4 4 2 2 1 4 5 5 5 4
STABILITY F B B B B F F E F B B B B F F E E B
CEILING None None None None None None None None None
STA PRES 26.79 26.82 26.81 26.83 26.81 26.85 26.81 26.82 26.80
Date 10/02Sat 10/03/26Sun 10/04/26Mon 10/05/26Tue 10/06/26
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MAX/MIN TEMP 74 60 65 53 59 51 59 40 55
TEMP 73 63 63 61 61 60 55 54 56 57 55 51 57 51 44 41 52 46
DEWPT 57 59 60 59 61 58 55 53 56 56 54 48 47 44 40 34 37 39
RH 57 87 90 93100 93100 96100 96 96 89 69 77 86 76 56 76
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW B1 B2 B2 B2 OV OV B2 B2 OV OV B2 SC SC SC FW FW FW
POP 12HR 20 40 90 70 80 40 20 0 0
RAIN SHWRS IS SC NM O NM NM O O SC SC IS
TSTMS 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