Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
131 AM EDT Mon Sep 28 2026
NCZ005-290800-
RAWS 310540
36.38N 79.70W Elev. 858 ft
131 AM EDT Mon Sep 28 2026
Date 09/27/26 Mon 09/28/26 Tue 09/29/26 Wed
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 54 79 58 82 59
TEMP 58 56 56 69 77 77 69 64 61 59 59 73 80 82 72 64 61 60 60
DEWPT 52 51 52 54 55 56 57 56 56 56 57 59 59 58 59 58 58 58 58
MIN/MAX RH 87 47 92 44 96
RH 80 83 86 59 47 48 66 75 84 90 93 62 49 44 64 81 90 93 93
WIND DIR NW W W NW NW N NW NW N N N NE W W E N N N NW
WIND SPD 3 3 3 4 5 4 2 2 2 2 2 2 3 2 1 0 0 0 1
CLOUDS FW FW FW FW FW FW B1 SC SC SC FW SC SC SC FW FW CL CL CL
CLOUDS(%) 10 7 10 16 21 21 53 33 37 32 14 35 30 27 13 10 4 5 1
VSBY 10 10 10 10 10 10 10 10 10 9 8 10 7 7 7 7 7 7 7
POP 12HR 0 5 0 0 0
MIX HGT <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR NW NW W NW NW NW N NW N N N SW W NW N
T WIND SPD 5 3 3 8 9 9 4 8 6 4 3 1 3 2 3
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 3 2 4 30 53 51 2 4 3 2 4 5 20 14 2
MAX LVORI 3 4 4 2 1 1 3 4 5 6 6 3 2 2 3
STABILITY G G B B B B G G G G B B B B G
CEILING None None None None None None None None
STA PRES 29.15 29.21 29.19 29.26 29.29 29.34 29.31
Date 09/30Thu 10/01/26Fri 10/02/26Sat 10/03/26Sun 10/04/26
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 87 61 89 63 89 63 75 58 70
TEMP 85 75 64 62 87 79 68 65 87 79 68 64 74 68 61 59 68 65
DEWPT 58 60 60 61 61 61 62 63 63 63 64 61 60 60 59 58 61 62
RH 40 60 87 97 42 54 81 93 45 58 87 90 62 76 93 96 78 90
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW FW FW SC SC B1 B1 B1 B1 B2 B2 B2 B2
POP 12HR 0 0 0 5 20 20 40 50 50
RAIN SHWRS IS IS IS IS SC SC SC SC 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