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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
947 PM EDT Sat Jun 23 2018
NCZ006-240900-
RAWS 310801
36.37N 79.29W Elev. 580 ft
947 PM EDT Sat Jun 23 2018
Date 06/23/18 Sun 06/24/18 Mon 06/25/18 Tue
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 70 91 71 90 68
TEMP 77 73 71 74 84 88 90 84 78 75 73 75 83 87 89 82 76 73 71 72
DEWPT 72 69 69 69 70 70 70 71 71 70 70 70 69 69 70 70 69 67 66 65
MIN/MAX RH 92 53 94 54 89
RH 85 87 93 84 63 55 52 65 79 84 90 84 63 55 54 67 79 81 84 79
WIND DIR SW SW SW W W W SW SW W W W NW NW NW NW N N NE NE NE
WIND SPD 2 2 2 3 8 9 9 3 3 2 1 1 3 5 5 3 2 4 5 8
CLOUDS FW SC SC SC SC SC B1 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 B1 B1
CLOUDS(%) 23 34 37 31 28 49 59 52 57 37 35 42 49 54 55 54 54 55 61 64
VSBY 7 7 7 7 7 6 6 4 6 7 7 7
POP 12HR 10 40 20 20 20
RAIN SHWRS IS SC IS IS IS IS IS
TSTMS IS SC IS IS IS IS IS
Obvis PF
LAL 1 1 1 1 1 2 3 2 1 1 1 1 1 2 2
HAINES 4 3 3 3 4 4 4 4 4 3 4 5 4 4 4 3
MIX HGT <1 <1 <1 <1 3 5 5 <1 <1 <1 <1 <1 3 4 5 2
T WIND DIR SW SW SW W W W W SW W W W NW NW W W NW
T WIND SPD 3 3 3 4 17 14 13 3 3 2 1 1 3 6 6 12
DISPERSION VP VP VP VP VP VP VP VP VP VP PR
ADI 2 2 2 4 53 61 55 1 1 1 1 1 14 21 22 6
MAX LVORI 5 6 7 6 1 1 1 3 4 5 7 6 2 2 2 3
STABILITY F F G C C C C F F G G B B D D F
CEILING None None None None None None None None
STA PRES 29.25 29.30 29.28 29.32 29.38 29.42 29.40
Date 06/26 Wed 06/27/18 Thu 06/28/18 Fri 06/29/18 Sat 06/30/18
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 83 69 88 71 91 72 94 73 93
TEMP 81 78 72 73 85 82 75 76 88 84 76 78 91 87 77 77 90 85
DEWPT 63 65 66 66 67 69 69 70 72 74 73 72 71 71 72 72 72 72
RH 54 64 81 79 55 65 82 82 59 72 90 82 52 59 85 85 56 65
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS B1 SC SC B1 B1 SC B1 B1 B1 B1 B1 SC SC B1 B1 SC SC B1
POP 12HR 5 5 30 20 20 20 30 30 30
RAIN SHWRS SC IS IS IS SC SC SC
TSTMS SC IS IS IS 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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