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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1201 PM EDT Fri May 15 2026
NCZ006-152000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
1201 PM EDT Fri May 15 2026
Date Fri 05/15/26 Sat 05/16/26 Sun 05/17/26
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 76 50 86 62 93
TEMP 72 75 68 57 54 51 57 75 84 86 79 70 67 63 66 81 91 92 84
DEWPT 39 39 44 44 43 43 47 50 50 52 54 53 54 56 59 61 58 59 62
MAX/MIN RH 27 76 31 82 32
RH 30 27 42 62 66 74 69 41 31 31 42 55 63 78 78 51 33 33 48
WIND DIR W W S S S S SW SW SW SW S S S SW SW SW SW S S
WIND SPD 6 5 1 1 2 2 3 8 9 9 4 4 4 4 4 4 4 5 1
WIND GUST 14 14
CLOUDS CL FW CL FW FW FW SC FW FW SC SC SC SC B1 SC SC FW FW FW
CLOUDS(%) 2 10 0 10 8 8 26 13 11 35 41 30 43 56 41 36 17 18 21
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 0 0 0 0
MIX HGT 6 6 <1 <1 <1 <1 <1 3 5 6 <1 <1 <1 <1 1 3 7 8 <1
T WIND DIR NW W SW S S S SW SW SW SW S S SW SW SW W S S S
T WIND SPD 8 8 2 3 4 4 4 14 13 17 6 6 5 5 9 9 4 9 9
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 55 60 1 2 2 2 4 62 85110 5 3 4 4 12 37 38 83 4
MAX LVORI 1 1 2 3 3 3 3 1 1 1 2 3 3 4 4 1 1 1 2
STABILITY B A G G G G A B B B E F E E A A A A G
CEILING None None None None None None None None None
STA PRES 29.40 29.45 29.49 29.51 29.43 29.44 29.46 29.52 29.50
Date Mon 05/18/26Tue 05/19/26Wed 05/20/26Thu 05/21/26
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 94 64 94 67 94 65 85
TEMP 69 69 92 86 70 68 92 87 71 71 93 83 70 68 84 74
DEWPT 61 63 60 60 60 62 57 57 61 64 60 63 63 63 60 61
RH 76 81 34 42 71 81 31 36 71 79 33 51 78 84 44 64
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS FW FW CL CL CL CL FW FW FW FW FW B1 B1 B1 B1 B2
POP 12HR 5 0 0 0 5 30 40 60
RAIN SHWRS SC SC IS SC NM
TSTMS SC IS 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