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EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Blacksburg VA
901 AM EDT Thu May 1 2025

NCZ005-012000-
RAWS 310540
36.38N  79.70W Elev. 858 ft
901 AM EDT Thu May 1 2025

Date             Thu 05/01/25            Fri 05/02/25            Sat 05/03/25
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                 85          64          83          63          81
TEMP                77 83 83 77 72 69 65 68 76 81 81 74 68 66 64 65 74 80 78 71
DEWPT               65 61 59 57 57 58 58 61 63 62 60 60 61 61 60 61 62 61 61 61
MAX/MIN RH                   43          82          48          88          53
RH                  67 47 44 50 59 68 78 78 64 53 49 62 78 84 87 87 66 52 56 71
WIND DIR            SW SW SW SW  S SW SW SW SW SW SW SW  S  S  S  S SW SW SW SW
WIND SPD             8 12 12  6  6  8  9  9 10 10 10  5  5  5  6  9 10 11 10  5
CLOUDS              B1 B1 SC B1 SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B2
CLOUDS(%)           51 55 40 59 50 47 47 54 61 59 56 64 56 55 51 56 59 66 65 79
VSBY                10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10
POP 12HR                      5          10          40          30          70
RAIN SHWRS                                  IS SC SC SC IS IS IS IS SC NM NM NM
TSTMS                                          SC SC SC IS          IS IS IS SC
MIX HGT              3  7  7 <1 <1 <1 <1  1  3  5  4 <1 <1 <1 <1  1  4  6  5 <1
T WIND DIR          SW SW SW SW SW SW SW SW SW SW SW  S  S  S SW SW SW SW SW  S
T WIND SPD          17 19 19  8  6  6  6 12 12 14 20  6  8  9  8 14 14 18 21 12
DISPERSION                   PR PR PR PR             PR PR PR PR             PR
ADI                 60 92 94  5  5  6  6 20 42 62 80  5  5  6  5 27 66 62 88  8
MAX LVORI            1  1  1  2  3  3  4  3  1  1  1  3  4  4  5  4  1  1  1  3
STABILITY            B  C  C  E  E  D  D  C  B  C  C  E  E  E  E  C  B  D  C  E
CEILING                    None  None  None  None  3400  7000  None 16100  3800
STA PRES                  29.25 29.26 29.28 29.28 29.22 29.22 29.22 29.22 29.13


Date          Sun 05/04/25Mon 05/05/25Tue 05/06/25Wed 05/07/25
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       59      73      54      73      55      74      55      76
TEMP          62 61 72 66 57 58 70 67 58 58 71 67 58 59 73 69
DEWPT         60 59 57 56 53 55 57 55 54 56 56 55 53 55 57 56
RH            93 93 59 70 86 90 63 65 86 93 59 65 83 87 57 63
WIND SPD          <15     <15     <15     <15     <15     <15     <15     <15
AVG CLOUDS    B2 B2 B2 SC SC SC SC SC SC B1 SC SC SC SC B1 SC
POP 12HR           70      60      30      50      30      40      20      30
RAIN SHWRS    NM NM NM NM SC SC SC SC SC IS SC SC IS    IS SC
TSTMS         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