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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EDT Fri May 15 2026
VAZ024-160800-
RAWS 441631
37.63N 79.51W Elev. 865 ft
701 PM EDT Fri May 15 2026
Date 05/15/26 Sat 05/16/26 Sun 05/17/26 Mon
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 51 85 59 91 62
TEMP 70 59 56 52 56 74 83 85 78 69 64 60 63 83 90 88 80 72 66 63 66
DEWPT 43 44 42 42 46 51 53 58 58 56 55 55 57 61 60 61 64 61 60 59 61
MIN/MAX RH 72 36 83 36 88
RH 38 57 59 69 69 44 36 40 50 63 73 84 81 47 37 40 58 68 81 87 84
WIND DIR W NW SW W N SW SW SW SW SW SW W N W SW S S N N N N
WIND SPD 1 1 1 1 0 4 8 8 2 2 1 1 0 1 3 3 1 0 0 0 0
CLOUDS B2 SC FW FW FW FW FW SC B1 B1 B1 B1 SC FW FW FW FW FW FW CL FW
CLOUDS(%) 83 44 18 10 16 8 20 39 62 62 55 62 30 17 13 11 11 12 6 5 6
VSBY 10 10 10 10 10 10 10 10 10 10 10 8 10 9 10 10 9 8 8 8
POP 12HR 0 10 10 10 5
SPRINKLES SC
Obvis PF
MIX HGT <1 <1 <1 <1 <1 3 5 4 <1 <1 <1 <1 <1 4 6 6 <1
T WIND DIR SW NW N N NW S SW SW S SW SW W W NW SW S S
T WIND SPD 2 1 2 2 1 4 12 16 10 5 3 3 2 8 4 6 3
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 1 1 1 1 1 16 74 70 5 3 2 2 2 36 35 54 2
MAX LVORI 2 3 3 3 3 2 1 1 2 3 3 5 5 1 1 1 3
STABILITY G F G G A A B B F F F F A A A A G
CEILING None None None None 11200 None None None None
STA PRES 28.57 28.58 28.61 28.53 28.55 28.58 28.65 28.62
Date 05/18Tue 05/19/26Wed 05/20/26Thu 05/21/26Fri 05/22/26
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 63 90 65 87 62 75 57 75
TEMP 90 87 71 68 90 84 70 69 86 79 68 65 75 70 61 59 73 69
DEWPT 61 62 59 60 60 59 58 60 63 64 61 59 59 58 54 53 55 57
RH 38 43 66 76 37 43 66 73 46 60 78 81 58 66 78 80 53 66
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW CL CL FW FW FW FW SC B2 B1 B1 B2 B2 B1 SC B1 B1
POP 12HR 5 5 5 5 60 40 60 40 40
RAIN SHWRS IS NM SC SC NM NM SC IS SC SC
TSTMS 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