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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
231 PM EDT Mon Sep 28 2026
VAZ024-290800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
231 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 56 82 56 87 56
TEMP 76 69 64 61 59 57 73 80 80 69 62 59 57 57 75 85 86 75 65 61 58 58
DEWPT 56 57 56 56 57 56 59 57 56 59 60 59 57 57 62 57 54 59 57 58 56 56
MIN/MAX RH 100 42 100 32 100
RH 50 66 75 84 93 96 62 45 44 70 93100100100 64 39 34 58 75 90 93 93
WIND DIR N N N N N N N NW E N N N N N N SW S N N N N N
WIND SPD 1 2 1 0 0 0 0 2 1 0 0 0 0 0 0 3 2 0 0 0 0 0
CLOUDS B2 B2 B2 B2 SC SC FW B1 B1 SC FW SC FW SC FW FW FW SC SC FW FW FW
CLOUDS(%) 72 85 74 72 47 37 16 54 54 38 25 29 22 42 9 21 16 29 31 23 15 19
VSBY 10 10 10 7 2 3 8 10 8 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
Obvis PF PF
MIX HGT 4 <1 <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR NW N N N NW NW N W SW W NW N N N SW SW S S
T WIND SPD 6 10 8 4 1 1 1 2 1 1 2 1 2 1 8 5 6 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 26 5 4 2 1 1 5 9 7 1 1 1 1 1 35 35 44 1
MAX LVORI 2 3 5 6 9 8 3 2 2 4 6 9 10 10 1 1 1 3
STABILITY C F F F G A A C A G G G G A A B B G
CEILING 3200 3200 None None None None None None None None
STA PRES 28.42 28.49 28.52 28.58 28.55 28.59 28.60 28.65 28.61
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 91 59 91 62 81 61 77 54 73
TEMP 88 77 64 61 89 79 67 63 79 71 63 62 74 69 60 55 72 63
DEWPT 54 61 60 59 60 64 64 62 63 63 62 61 66 65 60 55 54 54
RH 31 58 87 93 38 60 90 97 58 76 97 97 76 87100100 53 72
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW SC FW FW SC B1 SC SC B2 B2 B2 B1 B2 B1 B1 B1 B1
POP 12HR 0 0 20 20 30 40 50 30 30
RAIN SHWRS IS 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