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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
259 PM EDT Sun Jun 17 2018
NCZ005-180900-
RAWS 310540
36.38N 79.70W Elev. 858 ft
259 PM EDT Sun Jun 17 2018
Date 06/17/18 Mon 06/18/18 Tue 06/19/18 Wed
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 74 94 72 96 73
TEMP 92 87 81 78 77 79 87 91 93 87 80 77 74 78 87 92 94 88 81 77 75 78
DEWPT 67 68 70 69 70 71 71 69 68 71 71 70 70 71 71 69 70 71 71 70 71 72
MIN/MAX RH 84 44 92 45 93
RH 44 53 69 74 79 77 59 49 44 59 74 79 87 79 59 47 46 57 72 79 87 82
WIND DIR W W SW SW W W W NW SW SW W W W W NW W W W W W NW W
WIND SPD 3 3 2 4 3 2 3 3 3 3 4 4 3 3 5 5 5 4 4 3 3 3
CLOUDS B1 B1 FW SC FW FW FW SC SC SC SC SC FW FW FW FW SC SC SC SC SC SC
CLOUDS(%) 52 58 24 34 17 15 15 28 30 29 29 29 11 12 12 18 42 40 48 41 26 28
VSBY 7 10 10 10 7 7 7 7 7 7 7 7 7 7 7 7 7 7
POP 12HR 20 10 5 10 20
RAIN SHWRS IS IS IS IS IS IS
TSTMS IS IS IS IS
LAL 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
HAINES 4 4 4 3 3 3 4 4 4 5 4 4 4 4 4 4 4 4
MIX HGT 6 <1 <1 <1 <1 <1 3 6 6 <1 <1 <1 <1 <1 3 5 5 <1
T WIND DIR W W SW SW SW SW N NW NW W SW W W W NW W W W
T WIND SPD 4 1 1 3 2 0 8 6 9 8 2 2 2 2 11 9 13 11
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 20 1 1 2 1 0 32 49 40 3 1 1 1 2 48 52 85 5
MAX LVORI 2 3 4 5 7 6 1 1 1 3 3 4 5 4 1 1 1 3
STABILITY C F G G G B B B C G G G G B B B B F
CEILING None None None None None None None None None None
STA PRES 29.32 29.32 29.34 29.35 29.27 29.25 29.24 29.22 29.12
Date 06/20 Thu 06/21/18 Fri 06/22/18 Sat 06/23/18 Sun 06/24/18
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 95 72 93 71 88 70 89 69 MM
TEMP 91 87 77 77 87 83 74 75 86 82 73 74 84 76 70 MM MM MM
DEWPT 70 71 69 71 71 70 70 69 69 69 70 70 70 69 68 MM MM MM
RH 50 59 76 82 59 65 87 82 57 65 90 87 63 79 93 MM MM MM
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 MM
AVG CLOUDS SC B1 SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 MM MM
POP 12HR 50 20 40 30 50 50 50 30 MM
RAIN SHWRS IS SC IS IS IS SC SC SC IS SC SC SC SC SC SC SC
TSTMS IS SC 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
LAL(CATEGORY).......................Lightning Activity Level
HAINES(CATEGORY)....................Haines Index
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
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