National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
1203 AM EDT Wed Jun 18 2025

NCZ003-190800-
RAWS 310301
36.48N  80.86W Elev. 1300 ft
1203 AM EDT Wed Jun 18 2025

Date           06/17/25      Wed 06/18/25            Thu 06/19/25            Fri
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                 67          88          66          88          63
TEMP                   70 68 71 81 85 85 79 73 70 68 72 83 85 82 76 71 68 65 68
DEWPT                  69 67 70 72 71 72 72 69 67 66 68 72 71 70 70 66 65 63 65
MIN/MAX RH                  100          63          93          63          93
RH                     97 97 97 74 63 65 79 87 90 93 87 70 63 67 82 84 90 93 90
WIND DIR                S SW  S SW SW SW SW SW SW  W SW SW SW  W  W  W NW NW NW
WIND SPD                1  1  1  3  5  4  2  1  1  1  2  3  5  5  2  1  1  1  1
CLOUDS                 B1 SC FW FW B1 SC SC SC FW FW SC SC B1 B2 B2 B1 SC FW FW
CLOUDS(%)              57 36 18 17 55 41 40 34 21 15 38 38 67 72 73 58 41 25 14
VSBY                    9  9 10 10 10 10 10  9 10 10 10 10 10 10 10            
POP 12HR                     50          50          30          80          50
RAIN SHWRS                         SC SC IS IS       IS IS SC NM SC SC         
TSTMS                              IS IS IS IS          IS SC SC SC SC         
Obvis                   F  F  F                                                
MIX HGT                <1 <1  1  4  4  2 <1 <1 <1 <1  1  4  5  3 <1            
T WIND DIR             SW SW  W  W  W SW SW SW SW SW SW  W  W  W  W            
T WIND SPD              6  4  6 17 16 12 10  9  8  3  9 21 24 20 11            
DISPERSION             VP VP             VP VP VP VP             VP VP VP VP   
ADI                     3  2  9 93 63 40  5  4  4  2 13122133 78  5            
MAX LVORI               8  9  6  3  1  1  4  5  6  7  4  3  1  1  4            
STABILITY               F  G  A  A  C  A  G  G  G  G  A  A  B  B  F            
CEILING                    None  None  None  None  None  None 10600  None      
STA PRES                  28.12 28.17 28.14 28.14 28.14 28.14 28.11            


Date           06/20Sat 06/21/25Sun 06/22/25Mon 06/23/25Tue 06/24/25
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       87      63      89      66      92      69      94      69      94
TEMP          82 79 67 70 85 82 70 73 88 84 72 75 90 86 74 75 91 85
DEWPT         64 68 62 65 68 71 66 68 70 73 67 69 71 73 68 70 70 73
RH            55 69 84 84 57 69 87 84 55 70 84 82 54 65 82 84 50 67
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    FW FW FW FW FW FW SC FW FW FW FW FW FW FW FW FW FW FW
POP 12HR           10       0       5       0      10       5      10       5      10

$$


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