NOAA - National Weather Service - Water

Permalink

Precipitation Map Legend

Rain Gauge

≥ 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: 06/24/2019 at 09:20:02 pm EDT
06/25/2019 01:20:02 UTC
What is UTC time?

County Boundaries

Precipitation

Howard County, MD Rainfall Data (Units in Inches)
Last update: 2019-06-24 21:06:02 EDT

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 (EDT)	-	-	-	0.00	0.00	0.00	0.00
at Simpsonville (athm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	-	-	-	-
Dayton (daym2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	-	-	-	-
Ellicott City (elym2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	0.00	0.00	0.00	0.00
Lisbon (lsbm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	-	0.00	0.00	0.00
Little Patuxent River at Centennial (ctnm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	0.00	0.00	0.00	0.00
Patapsco River near Elkridge below Patapsco Valley State Park (elkm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	-	-	-	-
Savage Park (svgm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	0.00	0.00	0.00	0.00
Unnamed Tributary at Retention Pond near Columbia Gateway (cgwm2) Tabular Data (UTC) \| Tabular Data (EDT)	-	-	-	0.00	0.00	0.00	0.00

Area Hydrographs	River Observations Map

Resources

Hydrologic Resources

Additional Resources

US Dept of Commerce
National Oceanic and Atmospheric Administration
National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page Author: NWS Internet Services Team