National Weather Service United States Department of Commerce

	EXPERIMENTAL...FIRE WEATHER POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE Wakefield VA
510 PM EDT Mon May 18 2026

MDZ025-190800-
Assateague Island RAWS - Worchester MD
38.08N  75.20W Elev. 12 ft
510 PM EDT Mon May 18 2026

Date           05/18/26      Tue 05/19/26            Wed 05/20/26            Thu
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                      64          74          64          77          58
TEMP             71 67 66 65 66 71 73 74 70 67 66 65 67 73 76 76 67 66 65 63 60
DEWPT            64 64 65 65 65 65 63 63 63 63 63 63 63 63 62 63 63 64 65 62 58
MAX/MIN RH                  100          69          96          61         100
RH               81 90 95100 96 82 72 70 77 87 92 93 87 72 63 63 87 93 99100 94
WIND DIR          S  S  S SW SW  S  S  S  S  S SW SW SW SW  S  S  S SW NW  N  N
WIND DIR DEG     19 19 20 20 21 20 19 19 19 20 21 21 21 21 20 19 19 21 30 01 02
WIND SPD         13 14 12 11 10 12 16 16 16 17 14 12 12 11 14 16 14  6  5  8 13
CLOUDS           SC FW FW SC SC FW FW FW FW FW FW FW FW CL FW FW B1 B1 B1 B1 B2
CLOUDS(%)        35 18 21 28 31 24 23 19 17 16 21 21 11  5  6  8 62 62 59 66 72
VSBY              7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7  7
POP 12HR                      0           0           0           5          40
QPF 12HR                      0           0           0           0           0
SNOW 12HR                 00-00       00-00       00-00                        
RAIN SHWRS                                                        C  C  S  S  C
TSTMS                                                             S  S        S
MIX HGT               300   300  1300  1300   400   400  1700  1800   600  1000
T WIND DIR              S    SW    SW     S     S    SW    SW     S     N    NW
T WIND SPD             14    12    13    16    16    13    12    13     8     9
SMOKE DISP             PR    PR    PR    PR    PR    PR    PR    PR    PR    PR
ADI                    14    13    26    26    15    14    26    30    12    28
MAX LVORI               5     8     6     4     5     7     5     5     9    10
STABILITY               D     D     C     C     D     D     C     C     D     D
CEILING             30000 30000 30000 30000 30000 30000 30000 23500  8900  8000
PRESSURE            30.17 30.17 30.18 30.13 30.10 30.07 30.07 30.01 30.02 30.09


Date           05/21Fri 05/22/26Sat 05/23/26Sun 05/24/26Mon 05/25/26
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          64    55    62    56    66    59    69    59    68
TEMP          63 59 57 58 58 57 59 60 63 61 62 63 66 62 62 62 65 61
DEWPT         53 52 54 54 53 55 59 60 61 61 62 62 62 61 62 62 60 59
MIN/MAX RH       69    93    81   100    92   100    82   100    81
RH            71 80 89 87 83 94 99 99 92100100 99 87 98 99 98 83 93
WIND DIR      NE NE NE NE  E  E  E  E  E  E SE  E SE  E  E  E  E SE
WIND SPD      14 11  9 14 16 13 11 10 11 10 10  9 10  8  8  6  9  6
AVG CLOUDS    B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2
POP 12HR         50    50    70    70    60    60    60    50    40
RAIN SHWRS     C  C  C  C  L  L  L  L  L  C  C  L  C  L  C  C  C  C
TSTMS          S  S                          S        S            

$$

VAZ064-190800-
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