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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
308 AM EDT Sat May 16 2026
VAZ018-162000-
RAWS 444002
37.56N 80.18W Elev. 2702 ft
308 AM EDT Sat May 16 2026
Date Sat 05/16/26 Sun 05/17/26 Mon 05/18/26
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
MAX/MIN TEMP 85 61 89 63 91
TEMP 52 57 74 82 82 73 66 63 61 65 81 86 86 77 70 66 64 68 85 90 88 79
DEWPT 40 45 50 54 58 58 54 52 51 55 58 56 57 60 58 56 55 60 62 59 58 58
MAX/MIN RH 37 71 35 77 35
RH 63 64 43 38 44 59 65 67 70 70 46 36 37 56 66 70 73 76 46 35 36 49
WIND DIR N N SW SW W W W W W W W W S SE S SW W N S S S S
WIND SPD 0 0 2 4 4 2 3 3 2 2 3 2 2 1 1 1 1 0 2 5 6 3
WIND GUST 14 16 13 12 16 20 17
CLOUDS FW SC SC B1 B1 B1 SC SC SC SC FW FW FW FW FW CL FW FW CL FW FW FW
CLOUDS(%) 18 48 31 55 61 66 47 46 49 27 20 19 10 18 7 5 8 6 5 11 10 9
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 9 10 9 10 10 10 10 9
POP 12HR 5 5 5 5 5
MIX HGT <1 <1 3 5 5 <1 <1 <1 <1 <1 4 7 7 <1 <1 <1 <1 <1 4 8 7 <1
T WIND DIR W W W W W W W W W W W W S S S SW W W NW S S S
T WIND SPD 2 1 8 13 11 2 2 3 3 3 8 6 6 9 5 4 2 3 5 3 8 10
DISPERSION VP VP VP VP VP VP VP VP VP VP
ADI 1 1 30 59 46 1 1 2 2 3 44 56 59 4 3 2 1 3 30 32 62 5
MAX LVORI 3 3 2 1 1 3 3 3 3 3 1 1 1 3 3 3 3 3 2 1 1 2
STABILITY G A A C C F F F F A A A A G G G G A A A B G
CEILING None 4900 None None None None None None None None
STA PRES 27.88 27.86 27.85 27.88 27.93 27.90 27.95 27.98 28.02 27.98
Date Tue 05/19/26Wed 05/20/26Thu 05/21/26Fri 05/22/26
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
MIN/MAX TEMP 65 92 66 87 64 77 57 72
TEMP 68 69 91 83 70 71 86 78 68 67 75 70 61 60 70 66
DEWPT 55 58 54 54 53 58 61 61 60 60 61 56 52 52 54 53
RH 63 68 29 37 55 63 43 56 76 78 62 61 72 75 57 63
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW FW FW FW FW SC B2 B1 B1 B2 B2 B1 B1 B1 B1
POP 12HR 5 5 5 60 40 70 40 50
RAIN SHWRS IS NM SC SC NM NM SC SC SC SC
TSTMS SC IS 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