Surface Prognostic Charts
Surface Prognostic Charts are historical surface prognostic (forecast) charts created by the United States Weather Bureau. They include fronts, isobars, cloud, and precipitation areas. There are two separate charts: one is a four-panel 12- and 24-hour, in which the upper two panels are devoted to low-level significant weather; the other, a two-panel 36- and 48-hour with discussion. The discussion is limited to about 260 abbreviated words. Because of the space limitation, it may contain different kinds of information on one example of the chart than on another; but the following information is always included: a. Date/time of the initial data, b. Extent of numerical guidance available, c. Each weather system with significant developments, d. The "how" and "why" of any modification of numerical guidance, e. Revisions of previous forecasts, if needed, f. Clarification of any abrupt changes in continuity. The discussion was written and signed by the forecaster who made the forecast. 12 and 24-hour surface prognoses (0600z and 1800z initial data) were prepared in conjunction with the 30-hour surface forecast and had a four-panel format, in which the upper two panels were devoted to low-level significant weather. The 12 and 24-hour charts were prepared 4 times daily from 00z, 06z, 12z, and 18z initial data. The 36 and 48-hour prognoses with forecast discussions were prepared twice daily from 00z and 12z initial data. These charts cover the conterminous United States, southern Canada, and northern Mexico and have a scale of 1:26.7 million. Charts were produced between 1947 and 1966.
Dataset Citation
- Cite this dataset when used as a source.
Dataset Identifiers
- NCEI Physical Archive Collection: PROGSF
- gov.noaa.ncdc:C00185
ISO 19115-2 Metadata
gov.noaa.ncdc:C00185
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Ordering Instructions | Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov |
Dataset Point of Contact | Customer Engagement Branch NOAA National Centers for Environmental Information 1-828-271-4800 ncei.orders@noaa.gov |
Time Period | 1947-08-01 to 1966-03-31 (time interval: 12-hour) |
Spatial Bounding Box Coordinates |
West: 172.0
East: -66.0
South: 18.0
North: 72.0
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Spatial Coverage Map |
General Documentation |
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Data Presentation Form | Hardcopy image - image archived in analog format |
Dataset Progress Status | Historical archive - data has been stored in an offline storage facility |
Data Update Frequency | Not planned |
Supplemental Information | **INCLUDE ACQUISITION INFO FROM ORIGINAL RECORD** |
Purpose | Historic forecast charts can be used to provide validation in future model studies to ensure greater accuracy in forecasting. |
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Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
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Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
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Global Change Master Directory (GCMD) Location Keywords
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Stratum keywords |
Global Change Master Directory (GCMD) Location Keywords
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Lineage Statement | Charts were created by forecasters from the United States Weather Bureau. |
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Last Modified: 2023-09-08
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov