Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Mon Sep 28 2026
VAZ046-290800-
RAWS 441101
37.39N 78.80W Elev. 804 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 59 80 59 86 60
TEMP 66 63 61 61 74 78 78 68 63 61 59 60 77 84 85 74 66 63 61 61
DEWPT 59 59 59 59 61 59 58 60 62 61 59 60 64 61 56 60 59 60 58 58
MIN/MAX RH 99 48 100 37 94
RH 78 87 93 93 64 52 50 76 97100100100 64 46 37 62 78 90 90 90
WIND DIR NE NE N N NE E E E E N N N S SW S S S SW SW SW
WIND SPD 2 2 2 2 2 2 2 2 1 0 1 1 3 5 5 2 3 3 4 5
CLOUDS B2 OV OV B1 B1 B1 SC SC FW FW FW FW CL FW FW FW FW FW FW FW
CLOUDS(%) 84 92 88 54 65 65 48 32 23 19 13 24 4 21 19 21 25 25 14 18
VSBY 10 10 4 7 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 5 0 0 0 0
Obvis PF
MIX HGT <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 3 5 6 <1
T WIND DIR NE N N NE N NW N E E NE N N W SW SW S
T WIND SPD 4 2 2 2 1 2 0 2 2 1 2 0 5 5 5 2
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 2 4 9 0 1 1 1 1 0 22 36 39 1
MAX LVORI 5 6 7 8 3 2 2 4 8 10 10 10 3 1 1 3
STABILITY F F F B B C B G G G G A B B B G
CEILING 3400 3400 2700 None None None None None None
STA PRES 29.31 29.33 29.38 29.35 29.39 29.41 29.45 29.39
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 63 91 65 80 63 74 56 70
TEMP 88 77 66 64 89 80 68 65 77 71 63 63 74 67 60 57 69 62
DEWPT 59 60 60 60 62 63 63 62 63 63 63 63 66 65 60 57 57 55
RH 38 56 81 87 41 56 84 90 62 76100100 76 93100100 66 78
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW SC SC B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1
POP 12HR 0 0 5 20 20 40 50 30 30
RAIN SHWRS IS IS IS 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