National Weather Service United States Department of Commerce

	EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE WAKEFIELD VA
620 AM EDT WED APR 25 2018

VAZ081-252100-
JAMES RIVER NWR RAWS-PRINCE GEORGE VA
37.25N  77.25W ELEV. 50 FT
620 AM EDT WED APR 25 2018

DATE             WED 04/25/18            THU 04/26/18            FRI 04/27/18
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                      68          51          74          54          74
TEMP             60 64 67 67 63 59 56 53 56 67 72 73 66 60 58 56 58 68 73 73 67
DEWPT            60 60 58 56 55 53 51 48 48 45 45 45 49 51 52 52 55 53 51 51 51
MIN/MAX RH                   68          84          35          90          44
RH               99 87 73 68 75 80 84 83 75 45 38 37 53 73 80 86 89 59 47 46 56
WIND DIR          E SW  W NW NW NW NW NW NW NW  W SW SW SE  E  E SE  S SW SW NE
WIND DIR DEG     08 24 28 31 30 31 30 32 31 33 26 24 22 12 09 10 11 19 23 21 02
WIND SPD          2  3  4  5  4  4  4  4  4  4  3  3  2  3  2  3  3  5  3  5  2
CLOUDS           OV OV B2 B2 B2 B2 B1 SC SC FW SC B1 B2 B2 OV OV B2 B1 B1 B1 B1
CLOUDS(%)       100 94 87 86 85 70 59 46 33 23 38 64 79 87 91 94 82 58 55 62 58
VSBY              1  7  7  7  7  7  7  7  7  7  7  7  7  7  6  6  7  7  7  7  7
POP 12HR                     50          20           5          70          30
QPF 12HR                   0.19           0           0        0.23        0.02
SNOW 12HR                 00-00       00-00       00-00                        
DRIZZLE           S                                                            
RAIN              S                                                            
RAIN SHWRS           C  C  C  S  S                          L  L  C  C  S  S   
TSTMS                   S                                                      
OBVIS            PF                                                            
LAL                     2     2     1     1     1     1     1     1     1     1
HAINES                  3     3     3     3     4     4     4     3     4     4
MIX HGT              3000  3400  1600  2100  5900  6200  1900   800  5900  6300
T WIND DIR             SW     W    NW    NW    NW    SW    SE     S    SW    SW
T WIND SPD              4     8     6    13     8     9     8     9    13    11
SMOKE DISP             PR    PR    PR    PR    FR    FR    PR    PR    GD    GD
ADI                    14    20     7    33    44    46     5     8    49    46
MAX LVORI               8     4     5     5     2     2     5     5     3     3
STABILITY               D     C     B     F     F     B     B     D     F     B
CEILING               300  1000  2700  4700  4600  3200  3200  1000  1700      
PRESSURE            29.64 29.57 29.62 29.68 29.77 29.75 29.75 29.63 29.55 29.54


DATE          SAT 04/28/18 SUN 04/29/18 MON 04/30/18 TUE 05/01/18
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          53    74    49    69    45    72    49    79
TEMP          57 58 71 64 54 52 67 60 50 50 69 63 53 54 76 71
DEWPT         50 49 47 47 44 44 40 41 39 41 40 44 43 47 51 53
MAX/MIN RH       83    39    82    35    80    33    85    39
RH            77 72 43 54 70 75 37 50 67 72 34 49 67 77 42 53
WIND DIR       S  W  W  W NW  N NW  N NW NW NW  S SW SW SW  S
WIND SPD       2  2  3  3  3  4  6  3  2  3  3  3  3  3  6  5
AVG CLOUDS    SC SC FW FW SC FW FW FW FW CL CL CL CL CL FW FW
POP 12HR          5     5     0     0     0     0     0     5

EXPERIMENTAL ONLY...THIS PRODUCT IS FOR PLANNING AND REVIEW PURPOSES ONLY AND
IS NOT TO BE SUBSTITUTED FOR AN OFFICIAL FIRE WEATHER SPOT
FORECAST.
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 HUMIDITY
RH(%)...............................RELATIVE HUMIDITY
WIND DIR(8 POINT COMPASS)...........20 FT. WIND DIRECTION
WIND DIR DEG(DEGREES)...............20 FT. WIND DIRECTION IN TENS OF DEGREES
                                    RELATIVE TO DUE NORTH.
     EXAMPLE: 09 = 90 DEGREES = EAST; 18 = 180 DEGREES = SOUTH;
              27 = 270 DEGREES = WEST; 36 = 360 DEGREES = NORTH
WIND SPD(MPH).......................20 FT. WIND SPEED
WIND GUST(MPH)......................20 FT. WIND GUST
WIND CHILL..........................WIND CHILL TEMPERATURE
HEAT INDX...........................HEAT INDEX
CLOUDS(CAT).........................CLOUD COVER CATEGORY
     EXAMPLE: CL = CLEAR; FW = FEW; SC = SCATTERED;
              B1 = MOSTLY CLOUDY; B2 = CONSIDERABLE CLOUDS; OV = OVERCAST
CLOUDS(%)...........................CLOUD COVER AS A PERCENTAGE
VSBY................................VISIBILITY VALUE IN STATUTE MILES
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
QPF 12HR(IN)........................LIQUID EQUIVALENT PRECIPITATION AMOUNT
WEATHER...
     TYPE...
       RAIN...........RAIN
       RAIN SHWRS.....RAIN SHOWERS
       TSTMS..........THUNDERSTORMS
       DRIZZLE........DRIZZLE
       SNOW...........SNOW
       SNOWSHWRS......SNOW SHOWERS
       SLEET..........SLEET
       FLURRIES.......FLURRIES
       FRZG RAIN......FREEZING RAIN
       FRZG DRZL......FREEZING DRIZZLE
     COVERAGE...
       S..............SLIGHT CHANCE
       C..............CHANCE
       L..............LIKELY
       O..............OCCASIONAL
       D..............DEFINITE
       AR.............AREAS
       PA.............PATCHY
OBVIS...............................OBSTRUCTION TO VISIBILITY
     TYPE...
       F..............FOG
       PF.............PATCHY FOG
       F+.............DENSE FOG
       H..............HAZE
       BS.............BLOWING SNOW
       K..............SMOKE
       BD.............BLOWING DUST
       AF.............VOLCANIC ASHFALL
LAL(CAT)............................LIGHTNING ACTIVITY LEVEL
HAINES(CAT).........................HAINES INDEX
MIX HGT(FT AGL).....................MIXING HEIGHT
T WIND DIR(8 POINT COMPASS).........TRANSPORT WIND DIRECTION
T WIND SPD(MPH).....................TRANSPORT WIND SPEED
SMOKE DISPERSION....................SMOKE DISPERSION CATEGORY
     VALUES: VP = VERY POOR; PR = POOR; FR = FAIR; GD = GOOD
ADI (INDEX).........................ATMOSPHERIC DISPERSION INDEX
CEILING (FT)........................CEILING
PRESSURE (INCHES MERCURY)...........STATION PRESSURE
MAX LVORI (INDEX)...................LOW VISIBILITY OCCURRENCE RISK INDEX
STABILITY (CAT).....................PASQUILL TURNER STABILITY
WATCH/WARNING/ADVISORY...
     EXAMPLE: W = WARNING; Y = ADVISORY; A = WATCH
     IN EFFECT FOR THE INDICATED HOUR 

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 DIR............................20 FT. WIND DIRECTION
WIND SPD(MPH).......................20 FT. WIND SPEED
AVG CLOUDS(CAT).....................AVERAGE CLOUD COVER CATEGORY
POP 12HR(%).........................PROBABILITY FOR ACCUMULATING PRECIPITATION
WEATHER...
     SEE DAY 1 THROUGH 3 WEATHER DESCRIPTIONS