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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 PM EDT Mon Sep 28 2026
VAZ018-290800-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
401 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 53 79 55 84 57
TEMP 71 64 60 58 56 55 70 77 77 64 60 58 56 56 73 82 83 70 62 61 59 59
DEWPT 55 54 53 53 53 53 58 57 55 56 57 56 55 54 60 57 52 56 54 54 53 52
MIN/MAX RH 94 45 95 34 83
RH 57 70 78 83 90 93 66 50 47 75 90 93 96 93 64 43 34 61 75 78 80 78
WIND DIR NW NW N NW NW NW N N E NE N N N N S SW SW S SW SW W W
WIND SPD 5 4 3 1 2 2 1 2 1 1 0 0 0 0 2 3 2 1 1 2 2 2
WIND GUST 16
CLOUDS B2 B1 B2 B2 B2 SC FW B1 SC SC FW FW FW FW FW FW FW SC FW FW FW FW
CLOUDS(%) 76 65 86 78 78 34 20 53 49 30 25 17 21 23 9 22 17 27 22 21 18 22
VSBY 10 10 10 5 1 1 10 10 9 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
Obvis PF PF
MIX HGT 4 <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR NW NW NW NW NW NW NW NW SW SE SE S SW S SW SW SW SE
T WIND SPD 10 8 6 4 2 2 2 4 2 4 4 2 1 2 9 6 5 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 27 4 3 2 1 2 10 25 12 2 2 1 1 2 33 39 37 2
MAX LVORI 2 3 4 5 7 6 3 2 2 3 6 7 9 8 1 1 1 3
STABILITY D F F F F B A B A G G G G A B B B G
CEILING 1500 2300 None None None None None None None
STA PRES 27.81 27.82 27.86 27.84 27.87 27.89 27.93 27.88
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 87 61 87 63 79 61 73 55 70
TEMP 86 72 64 62 84 74 66 64 76 68 63 61 71 65 60 55 68 59
DEWPT 57 59 57 56 63 62 62 61 65 62 60 60 66 62 58 54 56 52
RH 37 64 78 81 49 66 87 90 69 81 90 97 84 90 93 96 65 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC SC SC B1 B1 SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1
POP 12HR 0 0 20 20 40 50 60 30 30
RAIN SHWRS IS IS SC SC SC SC SC NM 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