An upper trough and frontal boundary will focus showers and thunderstorms across portions of the Plains through early Monday; A few severe thunderstorms along with heavy rainfall are expected. Meanwhile, low pressure off the Southeast Coast will bring inclement weather across the mid-Atlantic coast through Monday. This system is forecast to meander off the coast then track inland early this week. Read More >
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Instructions for the proper application of the reference time designator
1. The designator specified in this table should be used to the greatest extent possible to indicate the reference time of data contained within the text of the bulletin.
2. When the table does not contain a suitable designator for the reference time, use "Z" and obtain the forecast hour from the GRIB Product Definition Section.
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A | Analysis (00 hour) | N | 18 hours forecast |
B | 1 hour forecast | O | 24 hours forecast |
C | 2 hours forecast | P | 30 hours forecast |
D | 3 hours forecasts | Q | 36 hours forecast |
E | 4 hours forecast | R | 42 hours forecast |
F | 5 hours forecast | S | 48 hours forecast (2 days) |
G | 6 hours forecast | T | 60 hours forecast |
H | 7 hours forecast | U | 72 hours forecast (3 days) |
I | 8 hours forecast | V | 84 hours forecast |
J | 9 hours forecast | W | 96 hours forecast (4 days) |
K | 10 hours forecast | X | 108 days forecast |
L | 11 hours forecast | Y | 120 hours forecast (5 days) |
M | 12 hours forecast | Z | Time contained in PDS |
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National Weather Service
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