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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 PM EDT Tue Jun 23 2026
VAZ024-240800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
801 PM EDT Tue Jun 23 2026
Date 06/23/26 Wed 06/24/26 Thu 06/25/26 Fri
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 84 57 90 65
TEMP 63 59 56 61 75 81 84 77 65 61 58 63 80 87 89 82 72 67 65 70
DEWPT 56 54 53 55 55 54 54 59 57 55 54 57 60 61 62 64 63 62 62 65
MIN/MAX RH 89 37 88 39 89
RH 78 83 90 81 50 39 36 54 75 81 86 81 51 42 41 55 73 84 90 84
WIND DIR NW NW NW N N S S S SE N N N S S S S S N N N
WIND SPD 4 3 3 2 3 2 3 2 1 1 2 0 2 4 5 2 1 0 0 0
CLOUDS FW CL CL FW FW SC SC SC SC SC SC FW FW FW FW FW SC SC SC SC
CLOUDS(%) 6 1 2 8 20 32 26 33 29 40 49 22 17 15 11 13 29 40 41 35
VSBY 9 7 7 8 10 10 10 10 10 10 10 10 10 10 10 10 10 8 8 10
POP 12HR 0 0 0 0 5
MIX HGT <1 <1 <1 1 4 5 5 <1 <1 <1 <1 <1 4 6 7 <1
T WIND DIR NW NW NW N N N W S SE NE NE N SW SW SW S
T WIND SPD 6 4 4 9 8 1 3 2 2 2 1 0 12 12 11 12
DISPERSION VP VP VP VP VP VP VP VP VP VP VP
ADI 3 2 2 13 39 8 23 1 1 1 1 0 62 99 96 6
MAX LVORI 4 5 6 4 1 2 2 3 4 5 6 6 1 1 1 2
STABILITY G G G A A A A G G G G A A A A G
CEILING None None None None None None None None None
STA PRES 28.53 28.58 28.60 28.56 28.56 28.56 28.56 28.53
Date 06/26Sat 06/27/26Sun 06/28/26Mon 06/29/26Tue 06/30/26
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 92 67 88 66 92 67 94 67 97
TEMP 91 81 70 70 85 81 69 71 90 83 70 71 91 86 70 72 94 88
DEWPT 68 70 68 70 72 71 69 70 70 70 68 69 69 69 65 67 68 70
RH 47 69 93100 65 72100 97 52 65 93 93 49 57 84 84 43 55
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC B1 B1 B1 B2 B1 B1 SC SC B1 SC SC SC SC FW SC FW FW
POP 12HR 50 40 40 10 30 10 10 5 10
RAIN SHWRS SC SC IS SC SC IS SC
TSTMS SC SC IS 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