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

MDZ021-300800-
Blackwater NWR RAWS-Dorchester MD
38.42N  76.00W Elev. 8 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                      77          91          67          81          64
TEMP             83 80 79 79 81 87 90 87 81 77 73 69 70 76 80 80 75 70 67 65 69
DEWPT            74 75 75 75 77 76 76 75 75 73 69 62 60 58 57 58 58 59 60 59 62
MAX/MIN RH                   94          64          89          45          85
RH               74 85 88 89 87 70 65 67 81 87 87 78 71 54 45 46 55 69 78 82 79
WIND DIR          S  S  S  S SW SW  S  S  S  W  N  N  N  N  N  N  N NE NE NE NE
WIND DIR DEG     17 17 19 20 21 21 20 19 20 26 34 35 35 34 34 35 00 03 03 03 04
WIND SPD         10  9  8  8  8  8  9  9  5  4  9 10 10 11 11 11  5  3  3  3  3
CLOUDS           SC B1 B1 B1 B2 B2 B2 B2 B2 B2 B2 B1 SC FW FW FW FW FW FW FW FW
CLOUDS(%)        43 52 63 60 72 73 73 77 78 82 73 60 31 15 16 12 13 12 11 14  7
VSBY              7  7  7  7  7  7  6  6  6  6  7  7  7  7  7  7  7  7  7  7  7
POP 12HR                     20          70          80           0           0
QPF 12HR                      0        0.26        0.74           0           0
SNOW 12HR                 00-00       00-00       00-00                        
RAIN SHWRS              S  S  S  C  L  L  D  L  S                              
TSTMS                   S  S     C  L  L  D  S                                 
LAL                     2     2     4     5     5     1     1     1     1     1
HAINES                  4     3     3     4     4     4     4     4     3     3
MIX HGT               600  1400  4100  3600   600  2000  5300  6000  1100  1600
T WIND DIR              S     S    SW     W     S     N     N     N    NE    NE
T WIND SPD             11    13    17    16     9    18    16    14     2     5
SMOKE DISP             PR    PR    GD    GD    PR    PR    GD    GD    PR    PR
ADI                    14    30    68    71    19    46    73    80     3    16
MAX LVORI               5     5     3     5     6     4     1     3     4     6
STABILITY               D     D     C     C     E     D     C     C     F     F
CEILING             10800  4700  6000 10700  9000  5500 30000  8300  3200  4000
PRESSURE            30.01 29.96 29.96 29.85 29.87 29.93 30.02 30.02 30.09 30.12


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          84    63    85    72    92    74    92    75    93
TEMP          82 76 67 68 83 80 75 77 90 86 78 78 90 86 78 79 91 86
DEWPT         60 61 65 66 62 65 68 70 72 73 74 75 74 75 75 76 75 75
MIN/MAX RH       44   100    47    87    52    99    55   100    55
RH            47 60 93 93 49 59 79 79 56 65 88 90 59 69 90 92 59 69
WIND DIR       E SE SE  S  S  S  S SW  S  S SW SW  S  S  S SW SW SW
WIND SPD       4  5  3  3  8 10  8  8  8  6  3  3  6  8  3  3  6  4
AVG CLOUDS    FW SC SC SC SC SC SC SC SC B1 B1 B1 SC SC SC SC SC SC
POP 12HR          0     0     0     5    20    30    30    30    20
RAIN SHWRS                                S  C  S     C  C  S     S
TSTMS                                     S  C        C  C        S

$$
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