National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
503 AM EDT Sun Jun 15 2025

NCZ018-152000-
RAWS 311941
36.22N  81.63W Elev. 3254 ft
503 AM EDT Sun Jun 15 2025

Date             Sun 06/15/25            Mon 06/16/25            Tue 06/17/25
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                 73          62          77          63          77
TEMP             65 69 69 69 67 64 63 63 66 71 72 74 69 66 64 63 65 72 75 74 70
DEWPT            61 63 65 65 64 63 62 62 63 65 66 66 66 64 63 63 64 65 67 67 65
MAX/MIN RH                   82          98          77          99          76
RH               87 81 87 87 90 97 97 97 90 81 81 76 90 93 97100 97 79 76 79 84
WIND DIR          W SW SW  W  W  W  W  W  W  W SW  W SW SW SW  S SW SW SW SW  W
WIND SPD          1  3  4  4  2  2  2  2  2  4  4  3  2  1  1  1  2  5  8  6  3
CLOUDS           B1 B2 B2 B2 SC SC B1 B1 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2
CLOUDS(%)        57 70 87 79 49 50 52 55 64 64 77 79 76 70 59 68 65 65 77 79 73
VSBY              4 10 10  9  9  8  4  3  5 10 10 10                           
POP 12HR                     80          50          90          70          90
RAIN SHWRS       IS SC NM  O SC SC          SC NM  O NM SC SC IS IS SC NM  O NM
TSTMS            IS SC NM NM SC             SC SC SC SC SC          SC SC SC SC
Obvis            PF                PF PF                                       
MIX HGT          <1  2  2  2  1 <1 <1 <1  1  2  2  1 <1 <1 <1 <1 <1  3  4  2 <1
T WIND DIR        W  W SW SW SW  W NW NW NW  S SW SW SW  W SE  S  S SW SW  S SW
T WIND SPD        4  9  9 13  6  3  3  3  1  4  5  6  4  1  2  4  3  8 16 23  8
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI               5 25 23 37  3  2  2  2  2 12 13 12  2  1  1  2  4 24 59 47  4
MAX LVORI         5  3  4  4  6  8  8  8  7  4  4  4  6  9 10  9  8  3  3  3  5
STABILITY         B  B  C  C  F  F  F  F  B  C  C  B  F  F  F  F  B  C  C  C  F
CEILING               200   200  None  None   200   700   500   100   100  1400
STA PRES            26.93 26.91 26.92 26.91 26.93 26.91 26.92 26.92 26.94 26.88


Date          Wed 06/18/25Thu 06/19/25Fri 06/20/25Sat 06/21/25
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       63      80      64      79      61      78      60      81
TEMP          66 67 77 72 66 67 76 70 64 63 76 70 62 65 78 73
DEWPT         63 64 66 66 63 64 64 63 62 61 58 60 57 59 60 62
RH            90 90 69 81 90 90 66 78 93 93 54 71 84 81 54 68
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B1 B1 B1 B1 SC B1 B1 B2 B2 B1 SC FW FW FW FW FW
POP 12HR           70      70      20      70      30      30       5      30
RAIN SHWRS    NM IS SC NM IS IS SC NM SC    IS SC          SC
TSTMS         SC    IS SC IS    IS SC SC       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