National Weather Service United States Department of Commerce

Severe Thunderstorms in the East Sunday; Excessive Heat Lingers in the Southern U.S. and Returning to California

Scattered damaging winds from severe thunderstorms will be possible across parts of the Northeast and Mid-Atlantic States Sunday. Excessive heat will continue over the southern U.S. Sunday before another round of heat arrives Monday through the central and southern U.S. spreading into the East by Independence Day. California will see excessive heat starting Tuesday. Read More >


	EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Sat Jun 29 2024

VAZ096-300800-
Great Dismal Swamp RAWS-Suffolk VA
36.61N  76.55W Elev. 35 ft
510 PM EDT Sat Jun 29 2024

Date           06/29/24      Sun 06/30/24            Mon 07/01/24            Tue
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                      75          95          68          81          61
TEMP             86 80 78 77 80 89 94 91 84 78 76 71 71 77 80 80 74 68 65 62 66
DEWPT            74 74 74 74 76 76 75 75 76 76 74 71 66 61 60 60 60 60 60 59 63
MAX/MIN RH                   97          54         100          49          93
RH               69 81 88 90 88 66 54 60 77 94 94 99 84 57 51 51 62 76 84 90 90
WIND DIR          S  S  S SW SW SW SW SW  S SW SW NW  N  N  N  N NE  N  N  N NE
WIND DIR DEG     17 18 20 21 21 21 21 21 20 21 22 33 00 00 01 02 03 02 35 00 03
WIND SPD          5  5  4  4  5  8  9  8  5  4  4  5  9  9  9  8  4  2  1  2  3
CLOUDS           SC FW SC SC SC SC B1 B2 B2 B2 B2 B2 B2 B1 SC FW FW FW FW FW FW
CLOUDS(%)        33 24 27 37 45 37 58 73 83 82 86 85 74 57 35 18  9  9 10 11  7
VSBY              7  7  7  7  7  7  7  6  6  6  6  6  7  7  7  7  7  7  7  7  7
POP 12HR                      5          60          80          20           0
QPF 12HR                      0        0.30        0.88        0.01           0
SNOW 12HR                 00-00       00-00       00-00                        
RAIN SHWRS                          C  L  L  L  D  L  S                        
TSTMS                               C  L  L  L  S                              
LAL                     1     1     3     4     4     3     1     1     1     1
HAINES                  4     3     4     4     3     3     3     4     4     4
MIX HGT               700  1400  6000  5000   800  1600  4100  5000  1000  1600
T WIND DIR              S    SW    SW    SW    SW     W     N     N     N    NE
T WIND SPD             10     9    16    17    13    12    13    11     4     8
SMOKE DISP             PR    PR    GD    GD    PR    PR    FR    FR    PR    PR
ADI                     5    26   107   101    10    33    56    77     3    35
MAX LVORI               5     7     3     4     6     8     3     3     5     7
STABILITY               F     F     B     B     E     E     C     B     F     F
CEILING             23500 23500 10800 23500  2800  1000  4000  4700 17000 30000
PRESSURE             30.0  30.0 29.98 29.86 29.86 29.87 29.97 29.97 30.04 30.06


Date           07/02Wed 07/03/24Thu 07/04/24Fri 07/05/24Sat 07/06/24
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          83    62    87    68    95    73    96    74    95
TEMP          81 75 66 68 85 80 72 74 92 87 77 78 94 88 78 79 93 87
DEWPT         62 64 63 66 62 65 64 69 70 72 71 73 73 74 72 74 73 75
MIN/MAX RH       50   100    45    97    46    93    48    94    51
RH            53 69 90 93 46 60 76 84 49 61 82 84 51 62 82 85 52 68
WIND DIR      NE  E  E NE SE SE  S SW SW  S  S SW SW  S SW SW SW  S
WIND SPD       9  4  2  1  3  5  4  5  5  5  4  3  5  6  4  3  6  6
AVG CLOUDS    FW SC SC SC SC SC FW SC FW SC SC SC SC SC SC SC SC SC
POP 12HR          0     0     0     5    20    20    20    20    30
RAIN SHWRS                                S  S        S  S        C
TSTMS                                     S  S        S  S        C

$$
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