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

MDZ022-300800-
Powellville RAWS - Wicomico MD
38.35N  75.42W Elev. 16 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                      76          91          65          81          61
TEMP             81 78 77 77 80 86 90 87 80 76 72 68 69 76 79 80 74 68 65 62 66
DEWPT            73 73 74 74 76 75 75 74 74 73 70 64 60 57 57 57 58 58 59 59 62
MAX/MIN RH                   95          61          93          44          93
RH               77 85 90 90 88 70 62 66 82 91 93 87 73 52 47 46 57 70 80 90 87
WIND DIR          S  S  S SW SW SW SW SW  S  W NW  N  N  N  N  N  N NE  N  N  N
WIND DIR DEG     17 18 20 21 22 22 22 21 20 25 30 34 34 34 34 00 02 03 01 01 02
WIND SPD          9  9  5  5  6  9 10  9  4  4  5  9 10 10 10  9  3  2  2  2  3
CLOUDS           B1 B1 B1 B1 B2 B1 B2 B2 B2 B2 B2 B2 SC FW FW FW FW FW FW FW CL
CLOUDS(%)        51 52 53 67 71 68 70 82 85 85 81 70 42 20 16 11 11 15 11 11  5
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        0.35        0.83           0           0
SNOW 12HR                 00-00       00-00       00-00                        
RAIN SHWRS              S  S  S  S  L  L  D  D  C  C                           
TSTMS                   S  S     S  L  L  D  C                                 
LAL                     2     2     4     5     5     1     1     1     1     1
HAINES                  5     4     3     3     3     4     4     4     3     3
MIX HGT               700  1300  3900  3400   600  1800  5200  5200  1000  1400
T WIND DIR              S     S    SW    SW     S    NW     N     N    NE    NE
T WIND SPD             12    12    18    17    12    16    14    13     4     6
SMOKE DISP             PR    PR    GD    GD    PR    PR    GD    GD    PR    PR
ADI                    13    28    68    77    10    34    68   106     4    16
MAX LVORI               5     6     3     5     6     5     3     3     5     6
STABILITY               D     E     C     C     E     D     C     B     F     F
CEILING             23500  4700  6500  6300  3600  1000 30000  4000  3200  4000
PRESSURE            30.01 29.95 29.94 29.82 29.85 29.87 29.97 29.97 30.04 30.09


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    61    85    68    92    72    93    72    93
TEMP          81 75 65 67 83 79 71 74 90 85 76 77 91 85 76 77 91 85
DEWPT         60 61 62 65 62 63 65 69 70 71 71 74 72 72 72 75 74 73
MIN/MAX RH       47   100    46    97    51   100    52   100    54
RH            50 64 91 94 48 57 80 85 52 63 85 90 55 66 87 94 57 67
WIND DIR       E  E SE SE  S  S  S SW SW  S SW SW SW  S SW SW SW SW
WIND SPD       6  4  3  2  8  8  6  6  8  6  3  3  8  8  3  2  6  5
AVG CLOUDS    FW SC SC SC SC SC FW FW SC B1 B1 B1 SC SC SC SC SC SC
POP 12HR          0     0     0     5    20    20    20    30    20
RAIN SHWRS                                S  S  S     S  C  S     S
TSTMS                                     S  S        S  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