Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
701 PM EDT Fri May 15 2026
VAZ018-160800-
RAWS 444002
37.56N 80.18W Elev. 2702 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 49 85 61 88 63
TEMP 66 56 52 50 54 74 82 82 73 67 63 61 65 82 87 86 76 70 66 63 68
DEWPT 43 40 39 39 44 49 53 55 56 54 52 51 55 58 56 57 61 58 56 55 59
MIN/MAX RH 72 36 71 34 77
RH 43 55 61 66 69 41 37 40 55 63 67 70 70 44 35 37 60 66 70 75 73
WIND DIR W W SW SW W SW SW W W SW W W W W SW S SE N SW N N
WIND SPD 2 1 2 2 2 4 6 8 2 3 3 2 2 2 2 2 1 0 1 0 0
WIND GUST 13 12
CLOUDS B1 SC FW FW FW FW SC B1 B1 SC B1 B1 FW FW FW FW FW FW CL FW CL
CLOUDS(%) 51 34 16 24 21 12 34 69 53 46 62 55 24 19 16 17 15 9 3 8 5
VSBY 10 10 10 10 10 10 10 10 10 10 10 9 10 9 10 10 9 9 9 9
POP 12HR 0 10 5 10 5
MIX HGT <1 <1 <1 <1 <1 3 6 5 <1 <1 <1 <1 <1 4 7 7 <1
T WIND DIR NW N W W W W SW SW SW SW W W W W SW S S
T WIND SPD 3 2 1 1 2 6 13 14 6 4 4 4 4 9 4 6 10
DISPERSION VP VP VP VP VP VP VP VP VP VP VP VP
ADI 2 1 1 1 2 26 87 60 3 2 2 2 4 48 37 60 5
MAX LVORI 2 3 3 4 3 2 1 1 3 3 3 3 3 1 1 1 3
STABILITY E G G G A A B C F F F F A A A A G
CEILING None None None 4500 16300 None None None None
STA PRES 27.85 27.86 27.88 27.82 27.85 27.88 27.95 27.92
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 91 64 89 66 84 63 74 58 73
TEMP 90 83 69 69 89 82 70 71 83 75 66 65 74 67 60 61 72 68
DEWPT 58 58 55 58 55 57 53 59 61 60 58 57 57 55 52 52 54 53
RH 34 43 61 68 32 43 55 66 47 60 75 75 55 65 75 72 53 59
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW CL FW SC FW FW B1 B2 B1 B1 B2 B2 B1 B1 B1 B1
POP 12HR 10 0 10 5 60 40 60 40 40
RAIN SHWRS SC NM SC SC NM NM SC SC 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