National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
401 AM EDT Fri May 15 2026

NCZ003-152000-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
401 AM 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                 77          51          84          57          89
TEMP          44 48 64 73 76 71 58 54 52 57 74 80 83 78 66 61 58 62 80 85 88 82
DEWPT         36 37 38 39 41 46 45 43 41 44 50 52 54 56 54 52 51 53 57 57 57 59
MAX/MIN RH                   28          69          37          78          35
RH            73 65 38 29 28 41 62 66 66 62 43 38 37 47 65 72 77 72 45 39 35 46
WIND DIR      NW NW NW NW  S  N  N  N  N  N  S  S  S  S  N  N  N  N  N  S  S  S
WIND SPD       3  4  3  1  2  0  0  0  0  0  3  6  5  2  0  0  0  0  0  4  5  2
WIND GUST        16                                                            
CLOUDS        FW CL CL CL FW B1 SC FW SC SC SC SC SC OV SC SC B1 B1 SC FW FW FW
CLOUDS(%)     13  2  2  2 19 59 28 19 35 27 27 44 38 90 50 34 53 58 32 23 24 24
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                      0           5           0           0           5
MIX HGT       <1  1  4  6  6 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  3  6  7 <1
T WIND DIR    NW NW NW  W SW  S SW SW SW SW SW SW SW  S SW SW  W  N  S  S  S  S
T WIND SPD     6 17 10  6  6  6  2  1  2  3 11 12 10  9  3  3  2  0  3  8 11  9
DISPERSION    VP             VP VP VP VP             VP VP VP VP             VP
ADI            3 24 48 50 48  3  1  1  1  3 37 78 64  4  2  2  1  0 14 60 96  4
MAX LVORI      4  3  1  1  1  2  3  4  3  3  1  1  1  2  3  3  4  4  2  1  1  2
STABILITY      G  A  A  A  A  F  G  G  G  A  A  B  A  F  F  G  F  A  A  A  A  G
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            28.19 28.14 28.21 28.24 28.27 28.23 28.25 28.26 28.31 28.30


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       61      90      61      90      63      89      61      84
TEMP          65 66 87 84 68 66 87 84 68 67 85 82 67 65 81 76
DEWPT         57 58 59 57 57 59 56 55 56 58 59 60 60 59 60 60
RH            75 75 39 40 68 78 35 37 65 73 41 47 78 81 49 58
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW CL FW FW CL CL FW SC FW SC B1 B1 SC B1 B2
POP 12HR            5       5       5       5       5      40      30      60
RAIN SHWRS                                  IS SC SC IS SC NM
TSTMS                                          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