Print This Forecast (Printer-Friendly)
EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
331 AM EDT Wed May 13 2026
VAZ046-132000-
RAWS 441101
37.39N 78.80W Elev. 804 ft
331 AM EDT Wed May 13 2026
Date Wed 05/13/26 Thu 05/14/26 Fri 05/15/26
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 77 50 67 45 76
TEMP 51 54 68 75 74 67 60 56 51 52 61 64 65 62 53 48 45 50 65 73 75 69
DEWPT 41 42 46 49 51 54 55 54 49 47 43 42 41 40 40 41 40 41 41 42 42 45
MAX/MIN RH 40 94 40 82 30
RH 68 64 45 40 44 63 84 93 93 83 51 45 41 44 61 77 82 71 41 33 31 42
WIND DIR SW SW SW SW SW SW W W W NW NW NW NW NW W W W W NW W W SW
WIND SPD 10 11 13 12 10 4 3 4 5 8 10 10 11 8 5 4 5 5 6 5 5 3
WIND GUST 24 25 18
CLOUDS CL CL FW SC B1 B2 B2 SC FW CL SC B1 B1 FW FW FW CL CL CL FW FW SC
CLOUDS(%) 2 5 10 27 60 79 78 40 9 2 49 65 53 13 11 11 2 2 3 21 19 31
VSBY 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR 30 70 0 5 0
RAIN SHWRS IS SC NM
TSTMS IS IS
MIX HGT <1 1 3 7 6 <1 <1 <1 <1 1 6 7 7 <1 <1 <1 <1 1 5 6 7 <1
T WIND DIR S SW SW SW SW SW W W NW NW NW NW NW NW W W W NW NW NW W W
T WIND SPD 9 16 20 16 18 3 2 4 6 16 12 13 18 13 4 5 5 13 17 11 11 3
DISPERSION FR VP VP VP PR PR PR VP PR VP
ADI 6 24 70 76 83 2 1 2 3 27 84 65 63 9 2 3 3 22105 89 90 2
MAX LVORI 3 2 1 1 1 3 6 6 6 4 1 1 1 2 3 3 5 3 1 1 1 2
STABILITY E C C C C E F F F B B C D E F F F A B A A G
CEILING None 8700 4800 None None None None None None None
STA PRES 29.32 29.17 29.12 29.12 29.17 29.18 29.26 29.27 29.32 29.30
Date Sat 05/16/26Sun 05/17/26Mon 05/18/26Tue 05/19/26
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 52 86 61 91 64 92 65 92
TEMP 55 57 83 78 65 65 90 82 69 67 90 84 71 68 90 85
DEWPT 44 47 56 58 57 58 59 61 61 61 62 62 62 63 62 62
RH 66 69 40 50 75 78 35 49 76 81 39 48 73 84 39 46
WIND SPD <15 <15 <15 <15 <15 <15 <15 <15
AVG CLOUDS SC SC SC SC SC SC SC FW SC FW FW FW FW FW FW SC
POP 12HR 0 10 10 10 20 5 10 5
RAIN SHWRS IS
TSTMS 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
Radar
Current Weather
Rivers & Lakes
Satellite
Forecast Maps
Hour by Hour Forecast
Tropical Weather
Graphical Hazards
Weather Briefing Page
Forecast Discussion
Text Products
Climate Plots
Submit A Storm Report
Fire Weather
Drought
Recreation Forecast
NOAA Weather Radio
Aviation
Follow us on X
Follow us on Facebook
Follow us on YouTube
RNK RSS Feed
