![]() |
Precipitation Map Legend |
![]() |
![]() |
≥ 90% Flash Flood Guidance |
≥ 70% Flash Flood Guidance |
< 70% Flash Flood Guidance |
Flash Flood Guidance Not Available For Location |
Observation More Than 24 Hours Old |
Out of Service |
Last map update:
02/27/2021 at 01:30:02 pm EST
02/27/2021 18:30:02 UTC
What is UTC time?
Precipitation |
![]() |
State of Maryland Precipitation Summary
Location Name | 15 Min. | 30 Min. | 1 Hr. | 3 Hr. | 6 Hr. | 12 Hr. | 24 Hr. |
---|---|---|---|---|---|---|---|
Alpha Ridge Landfill (arlm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | - | - | 0.07 | 0.17 | 0.26 |
at Simpsonville (athm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | - | - | - | - | - |
Dayton (daym2) Tabular Data (UTC) | Tabular Data (EST) |
0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.12 | 0.24 |
Ellicott City (elym2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | 0.00 | 0.00 | 0.00 | 0.04 | 0.12 |
Lisbon (lsbm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | - | 0.00 | 0.04 | 0.20 | 0.28 |
Little Patuxent River at Centennial (ctnm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | 0.00 | 0.00 | 0.04 | 0.04 | 0.24 |
Patapsco River near Elkridge below Patapsco Valley State Park (elkm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | - | - | - | - | - |
Savage Park (svgm2) Tabular Data (UTC) | Tabular Data (EST) |
- | - | - | - | - | 0.08 | 0.20 |
Unnamed Tributary at Retention Pond near Columbia Gateway (cgwm2) Tabular Data (UTC) | Tabular Data (EST) |
0.00 | 0.00 | 0.00 | 0.00 | 0.04 | 0.10 | 0.20 |
Area Hydrographs | River Observations Map |