Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Sat May 16 2026
NCZ006-162000-
RAWS 310801
36.37N 79.29W Elev. 580 ft
801 AM EDT Sat May 16 2026
Date Sat 05/16/26 Sun 05/17/26 Mon 05/18/26
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 86 62 92 65 94
TEMP 75 84 85 78 69 66 63 66 81 90 91 83 73 69 66 69 84 92 93 86
DEWPT 51 51 52 54 53 54 56 60 63 60 59 62 61 63 63 65 66 61 59 61
MAX/MIN RH 31 83 34 93 32
RH 43 32 32 43 57 65 78 81 54 37 34 49 66 81 90 87 55 36 32 43
WIND DIR SW SW SW S S SW SW SW SW SW S S S S SW SW SW S S S
WIND SPD 6 8 8 3 4 4 4 4 4 4 5 2 2 3 3 2 3 5 6 3
CLOUDS FW FW SC SC B1 B1 B1 SC SC SC FW FW FW FW FW FW CL FW CL FW
CLOUDS(%) 22 19 31 39 56 54 61 46 32 27 12 12 11 11 8 7 3 9 5 8
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 0 5 0 0 0
MIX HGT 3 6 6 <1 <1 <1 <1 1 3 7 7 <1 <1 <1 <1 1 4 7 7 <1
T WIND DIR SW SW SW S S S S SW W SW S S S S S SW W SW S S
T WIND SPD 14 13 13 4 6 6 5 11 13 6 9 10 5 5 4 9 10 8 9 5
DISPERSION VP VP VP VP VP VP VP VP VP
ADI 63 91 90 2 5 5 4 15 55 55 82 5 3 3 2 15 59 65 70 3
MAX LVORI 1 1 1 2 3 3 4 4 1 1 1 2 3 4 6 4 1 1 1 2
STABILITY B B B G E E E A A A A G G G G A A A B G
CEILING None None None None None None None None None None
STA PRES 29.50 29.43 29.44 29.47 29.51 29.47 29.53 29.56 29.60 29.55
Date Tue 05/19/26Wed 05/20/26Thu 05/21/26Fri 05/22/26
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 67 94 66 81 57 72
TEMP 70 68 92 87 73 71 93 85 72 68 79 71 62 59 70 68
DEWPT 60 62 56 56 60 63 58 62 64 65 63 63 59 57 58 59
RH 71 81 30 35 64 76 31 46 76 90 58 76 90 93 66 73
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS CL FW FW FW FW FW FW SC B1 B1 B1 B2 B2 B2 B2 B2
POP 12HR 0 0 0 20 30 70 60 50
RAIN SHWRS IS SC SC SC NM NM SC SC SC
TSTMS IS IS IS SC IS
$$
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