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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Sep 28 2026
NCZ006-290800-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 PM EDT Mon Sep 28 2026
Date 09/28/26 Tue 09/29/26 Wed 09/30/26 Thu
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 58 83 58 88 61
TEMP 64 62 60 59 74 81 81 70 64 61 59 59 77 86 87 76 67 64 63 63
DEWPT 59 57 58 58 61 59 58 59 62 61 59 59 63 59 58 59 59 60 60 61
MIN/MAX RH 99 44 100 36 97
RH 84 84 93 96 64 47 46 68 93100100100 62 40 38 56 75 87 90 93
WIND DIR N N N N N N NE N N N N N N SW SW S N S SW SW
WIND SPD 0 0 1 1 1 1 1 0 0 0 0 0 0 3 3 1 0 1 2 2
CLOUDS SC B2 B1 SC FW SC SC SC SC FW SC FW FW FW FW FW FW FW FW FW
CLOUDS(%) 36 87 57 46 16 37 29 40 29 24 27 16 7 14 21 24 24 19 9 17
VSBY 10 10 8 8 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 <1 <1 3 5 6 <1 <1 <1 <1 <1 3 6 7 <1
T WIND DIR N N N N E NE NE NE NE NE NE N S SW SW SE
T WIND SPD 8 4 3 3 3 2 3 3 3 2 2 1 3 3 3 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 4 2 2 3 13 15 24 2 2 1 1 1 14 24 26 2
MAX LVORI 5 5 7 8 3 2 2 3 7 10 10 10 2 2 2 3
STABILITY G F G A A A A G G G G A A B B G
CEILING 3600 None None None None None None None None
STA PRES 29.37 29.38 29.43 29.41 29.45 29.47 29.51 29.45
Date 10/01Fri 10/02/26Sat 10/03/26Sun 10/04/26Mon 10/05/26
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 90 65 92 66 85 65 77 59 72
TEMP 89 78 68 66 90 81 71 67 82 75 67 65 76 69 62 60 71 64
DEWPT 60 61 62 63 64 64 65 65 66 65 65 65 68 67 62 60 60 57
RH 38 56 81 90 42 56 81 93 58 71 93100 76 93100100 68 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC B1 SC B1 B1 B2 B2 B2 B2 B2 B1 B1 B1
POP 12HR 0 0 10 20 30 40 50 40 40
RAIN SHWRS IS IS IS SC SC SC 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