National Weather Service United States Department of Commerce

Print This Forecast (Printer-Friendly)

EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
801 AM EDT Fri Jul 4 2025

NCZ003-042000-
RAWS 310302
36.35N  80.48W Elev. 1076 ft
801 AM EDT Fri Jul 4 2025

Date             Fri 07/04/25            Sat 07/05/25            Sun 07/06/25
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                 88          66          85          65          84
TEMP                79 84 85 80 72 69 67 70 79 82 83 79 71 68 66 69 77 81 81 76
DEWPT               65 66 64 66 63 62 62 65 67 65 65 66 64 62 62 64 67 68 68 69
MAX/MIN RH                   51          85          53          87          64
RH                  62 55 50 62 73 78 84 84 67 56 55 64 79 81 87 84 71 65 65 79
WIND DIR             E  E  E  E  E  E NE  E  E  E  E  E  E NE NE NE NE  E  E  E
WIND SPD             5  4  3  3  3  2  2  2  3  4  4  4  3  2  3  3  3  4  4  4
CLOUDS              CL FW FW FW CL FW CL CL FW FW FW FW FW FW FW FW FW B1 B1 SC
CLOUDS(%)            1  6  7  7  4  8  4  3  7 13 16 19 14 15 14 25 23 53 53 39
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      0           0           5           5          30
RAIN SHWRS                                                             SC SC IS
TSTMS                                                                  IS IS   
MIX HGT              3  5  6 <1 <1 <1 <1 <1  3  5  5 <1 <1 <1 <1 <1  3  5  6  1
T WIND DIR           E  E  E  E NE NE NE NE SE  E  E  E SE  E  N  E  E  E  E  E
T WIND SPD          13  8  6  3  3  3  2  4  6  6  5  8  3  2  3  3  4  4  5  9
DISPERSION                   VP VP VP VP             VP VP VP VP             VP
ADI                 57 52 50  2  2  2  1  4 30 41 36  4  2  1  2  3 19 30 43  4
MAX LVORI            1  1  1  3  3  4  5  5  3  1  1  3  4  5  6  5  3  3  1  4
STABILITY            A  A  A  G  G  G  G  A  A  A  A  F  G  G  G  A  A  A  A  F
CEILING              None  None  None  None  None  None  None  None  None  None
STA PRES            29.06 29.03 29.05 29.08 29.11 29.05 29.06 29.05 29.07 28.99


Date          Mon 07/07/25Tue 07/08/25Wed 07/09/25Thu 07/10/25
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       69      87      70      90      70      88      69      85
TEMP          71 71 83 79 72 73 87 79 72 73 84 77 71 71 82 77
DEWPT         67 69 71 71 69 69 71 72 69 70 71 71 70 70 72 72
RH            87 93 67 77 90 87 59 79 90 90 65 82 97 97 72 85
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    SC SC SC B1 SC SC SC B1 B1 SC SC B2 B2 B1 B1 B2
POP 12HR           20      30      10      40      20      60      40      70
RAIN SHWRS    IS       SC          SC IS    IS NM SC    SC NM
TSTMS                  SC          SC IS       NM SC    IS NM

$$


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