National Weather Service United States Department of Commerce

	EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 AM EDT Wed Aug 19 2026

MDZ025-192000-
Assateague Island RAWS - Worchester MD
38.08N  75.20W Elev. 12 ft
510 AM EDT Wed Aug 19 2026

Date             Wed 08/19/26            Thu 08/20/26            Fri 08/21/26
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                      81          75          83          72          81
TEMP             75 78 79 78 77 76 76 76 77 80 81 80 76 75 75 74 74 77 79 79 76
DEWPT            74 73 73 73 74 73 73 73 75 75 75 74 74 73 73 72 72 72 71 71 72
MIN/MAX RH                   80          96          80          98          77
RH               99 85 83 84 92 92 92 92 92 86 84 84 93 94 95 95 93 83 79 79 87
WIND DIR          N  E  S  S  S  S SW SW  S  S  S  S  S  N  N  N  N NE NE NE  E
WIND DIR DEG     34 10 16 17 18 20 21 22 19 19 19 18 18 35 34 00 02 04 05 06 08
WIND SPD          3  3  4  6  5  5  8  5  4  8 10 10  6  6  6  8  8  9 10  9  8
CLOUDS           B1 SC FW FW FW FW FW FW SC SC B1 B1 B2 B2 B1 B2 B1 B1 B1 B1 B1
CLOUDS(%)        53 37 23  9  6 16 17 22 29 35 53 68 81 81 68 77 67 57 61 59 69
VSBY              5  7  7  7  7  7  7  7  7  7  7  7  4  4  7  7  7  7  7  7  7
POP 12HR                      5           5          70          70          40
QPF 12HR                      0           0        0.28        0.62        0.08
SNOW 12HR                 00-00       00-00       00-00                        
RAIN SHWRS                                      C  C  L  L  C  C  S  S  C  C  C
TSTMS                                           C  S  C  S  S                 C
Obvis            PF                                                            
MIX HGT              1000  1100   400   400   700   800  1000  1400  2300  2100
T WIND DIR              N     S     S    SW     S     S     W     N    NE    NE
T WIND SPD              3     5     8     9    14    18     6    16    13    11
SMOKE DISP             PR    PR    PR    PR    PR    PR    PR    PR    PR    PR
ADI                     6     6     7    10    19    16    10    32    36    25
MAX LVORI               8     8     6     7     5     6     8     8     4     5
STABILITY               A     B     F     F     B     C     F     D     C     D
CEILING             30000 30000 30000  7200  7200  7200  6500  7200  5500  5000
PRESSURE            29.92 29.89 29.90 29.92 29.94 29.92 29.97 29.98 30.04 30.04


Date          Sat 08/22/26Sun 08/23/26Mon 08/24/26Tue 08/25/26
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          73    81    73    82    72    81    71    80
TEMP          75 74 79 78 75 75 80 78 75 73 79 77 74 72 78 77
DEWPT         72 73 73 74 73 73 72 73 71 69 67 68 68 67 66 68
MAX/MIN RH       98    81    97    76    91    65    86    65
RH            92 97 83 88 94 96 78 84 89 88 68 73 82 84 66 74
WIND DIR      SE  E SE SW SW  W SW SW  W NW SW SW SW NW SE SE
WIND SPD       6  6  8  6  6  4  6  5  6  6  5  4  5  6  6  6
AVG CLOUDS    B2 B2 B2 B2 B1 B1 B1 B1 SC SC FW FW FW FW FW SC
POP 12HR         70    70    40    30    20    10     5    10
RAIN SHWRS     C  L  L  C  C  C  S  C  S                     
TSTMS          C  C  S  S  C  S     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
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