Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
832 PM EDT Tue Mar 17 2026
NCZ003-180800-
RAWS 310302
36.35N 80.48W Elev. 1076 ft
832 PM EDT Tue Mar 17 2026
Date 03/17/26 Wed 03/18/26 Thu 03/19/26 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 27 42 29 57 39
TEMP 30 28 27 27 32 39 42 40 35 32 30 31 44 54 57 53 48 44 42 40
DEWPT 13 13 13 14 12 13 15 19 19 20 20 21 26 31 33 35 36 36 36 37
MIN/MAX RH 55 33 68 40 89
RH 49 53 55 57 43 34 33 42 52 61 66 66 49 41 40 50 63 73 79 89
WIND DIR NW N N E SE S S S S SW SW W SW SW SW S SW SW W NW
WIND SPD 4 5 4 3 4 4 4 3 3 2 2 2 3 4 4 3 3 3 2 3
CLOUDS FW B1 OV B2 B1 SC B1 SC SC SC SC B1 B1 B1 B2 B1 B1 B1 SC SC
CLOUDS(%) 12 68 96 70 59 44 67 50 40 50 32 56 61 66 70 68 64 63 47 29
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 10
MIX HGT 1 2 2 1 3 5 5 <1 <1 <1 <1 <1 1 3 4 <1
T WIND DIR NW NW N NE SE S SW S S SW S SW SW SW SW SW
T WIND SPD 11 9 10 5 3 8 8 2 2 2 3 2 6 9 11 4
DISPERSION VP PR VP VP VP VP VP VP VP VP VP
ADI 5 6 7 10 14 43 48 1 1 1 2 2 13 31 42 2
MAX LVORI 2 2 2 2 2 1 1 2 2 3 3 3 2 1 1 2
STABILITY F E E B B B B F G F G C B C C F
CEILING None 15100 8300 6200 None None 12300 11200 4300
STA PRES 29.16 29.21 29.27 29.19 29.19 29.15 29.13 29.03
Date 03/20Sat 03/21/26Sun 03/22/26Mon 03/23/26Tue 03/24/26
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 65 44 72 47 76 50 68 38 53
TEMP 63 60 49 46 69 65 53 48 73 70 59 51 65 59 45 38 49 47
DEWPT 43 43 43 42 45 44 44 43 49 48 48 42 36 34 30 26 27 29
RH 48 53 80 86 42 46 71 83 43 45 67 71 34 39 55 62 42 49
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 SC SC SC B1 SC SC FW FW SC B1 SC SC SC SC SC B1
POP 12HR 5 5 0 0 5 20 20 20 20
RAIN SHWRS IS IS IS 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