Extreme Western Allegany Severe Watches & Warnings NOAA Weather Radio

Watches & Warnings

There are currently no watches in effect.

Public Information Statement
Issued: 4:29 PM EDT Jul. 21, 2018 – National Weather Service

The following is a preliminary list of rainfall amounts of 1 inch or
more since noon today. This summary is also available on our home
Page at www.Weather.Gov/lwx.

********************Storm total rainfall********************

Location storm total time/date comments
                     rainfall of
                     /inches/ measurement

Maryland

... Anne Arundel County...
   Riva 2 WNW 1.60 330 PM 7/21 trained spotter

... Calvert County...
   Drum Point 2 N 2.37 245 PM 7/21 trained spotter

... Frederick County...
   New Market 2 NW 1.00 335 PM 7/21 NWS employee

... Howard County...
   Ellicott City 1.12 400 PM 7/21 broadcast media

... Montgomery County...
   Clarksburg 1.20 330 PM 7/21 County emrg mgmt
   Gaithersburg 1.00 330 PM 7/21 County emrg mgmt

... Prince Georges County...
   Cheltenham 1 NNE 1.80 400 PM 7/21 trained spotter

Virginia

... Spotsylvania County...
   Spotsylvania courtho 2.37 337 PM 7/21 trained spotter


***********************6 hour rainfall***********************

Location 6 hour time/date comments
                     rainfall of
                     /inches/ measurement

Maryland

... Anne Arundel County...
   Riva 3 SSW 1.53 153 PM 7/21 cwop
   Londontowne 1.48 151 PM 7/21 cwop
   Upper Marlboro 5 ESE 1.37 135 PM 7/21 cwop
   Fort Meade 1 NNE 1.36 134 PM 7/21 AWS
   Green Haven 2 ENE 1.34 200 PM 7/21 cwop
   Londontowne 1 SSW 1.32 146 PM 7/21 cwop
   US naval Academy 1.21 154 PM 7/21 ASOS
   South Gate 1 SSW 1.20 150 PM 7/21 cwop
   Londontowne 3 SW 1.20 142 PM 7/21 cwop
   Odenton 1.02 159 PM 7/21 cwop

... Calvert County...
   Patuxent River NAS 2 1.56 138 PM 7/21 cwop
   Eagle Harbor 6 NE 1.39 153 PM 7/21 cwop
   Eagle Harbor 9 ENE 1.34 140 PM 7/21 cwop

... Howard County...
   Lisbon 1.24 134 PM 7/21 AWS

... Montgomery County...
   North Potomac 2 E 1.03 152 PM 7/21 cwop

... Prince Georges County...
   Kettering 3 ENE 1.28 135 PM 7/21 AWS
   Bowie 1 NW 1.12 135 PM 7/21 AWS
   Upper Marlboro 2 ENE 1.12 135 PM 7/21 AWS
   Morningside 1.12 135 PM 7/21 AWS
   Marlton 2 WNW 1.03 155 PM 7/21 cwop
   largo 2 SSE 1.02 155 PM 7/21 mesowest
   Capitol Heights 1 ss 1.00 134 PM 7/21 AWS
   Kettering 1 W 1.00 135 PM 7/21 AWS

... St. Marys County...
   California 1.59 146 PM 7/21 cwop
   Patuxent River 1.55 152 PM 7/21 ASOS
   Charlotte Hall 1 E 1.48 135 PM 7/21 AWS
   Lexington Park 1.24 141 PM 7/21 cwop

Virginia

... Fairfax County...
   Herndon 1 SW 1.29 114 PM 7/21 vadot

... Spotsylvania County...
   Thornburg 3 W 1.19 158 PM 7/21 cwop

... Stafford County...
   Storck 2 NE 1.43 152 PM 7/21 cwop


*****metadata*****
:7/21/2018, 330 PM, MD, Anne Arundel, Riva, 2, WNW, 38.95980, -76.61680, rain, 1.60, inch, trained spotter, storm total rainfall,
:7/21/2018, 245 PM, MD, Calvert, Drum Point, 2, N, 38.36180, -76.42970, rain, 2.37, inch, trained spotter, storm total rainfall,
:7/21/2018, 335 PM, MD, Frederick, New Market, 2, NW, 39.40010, -77.29990, rain, 1.00, inch, NWS employee, storm total rainfall,
:7/21/2018, 400 PM, MD, Howard, Ellicott City, , , 39.27210, -76.83460, rain, 1.12, inch, broadcast media, storm total rainfall,
:7/21/2018, 330 PM, MD, Montgomery, Clarksburg, , , 39.23860, -77.27970, rain, 1.20, inch, County emrg mgmt, storm total rainfall,
:7/21/2018, 330 PM, MD, Montgomery, Gaithersburg, , , 39.14120, -77.21660, rain, 1.00, inch, County emrg mgmt, storm total rainfall,
:7/21/2018, 400 PM, MD, Prince Georges, Cheltenham, 1, NNE, 38.75250, -76.81530, rain, 1.80, inch, trained spotter, storm total rainfall,
:7/21/2018, 337 PM, VA, Spotsylvania, Spotsylvania courthouse, 1, ENE, 38.20170, -77.57840, rain, 2.37, inch, trained spotter, storm total rainfall,
:7/21/2018, 153 PM, MD, Anne Arundel, Riva, 3, SSW, 38.90117, -76.61467, rain_06, 1.53, inch, cwop, 6-hourly rainfall,
:7/21/2018, 151 PM, MD, Anne Arundel, Londontowne, , , 38.94800, -76.55833, rain_06, 1.48, inch, cwop, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Anne Arundel, Upper Marlboro, 5, ESE, 38.76617, -76.67108, rain_06, 1.37, inch, cwop, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Anne Arundel, Fort Meade, 1, NNE, 39.12550, -76.73830, rain_06, 1.36, inch, AWS, 6-hourly rainfall,
:7/21/2018, 200 PM, MD, Anne Arundel, Green Haven, 2, ENE, 39.15417, -76.49567, rain_06, 1.34, inch, cwop, 6-hourly rainfall,
:7/21/2018, 146 PM, MD, Anne Arundel, Londontowne, 1, SSW, 38.91882, -76.56579, rain_06, 1.32, inch, cwop, 6-hourly rainfall,
:7/21/2018, 154 PM, MD, Anne Arundel, US naval Academy, , , 38.98330, -76.48330, rain_06, 1.21, inch, ASOS, 6-hourly rainfall,
:7/21/2018, 150 PM, MD, Anne Arundel, South Gate, 1, SSW, 39.11250, -76.62967, rain_06, 1.20, inch, cwop, 6-hourly rainfall,
:7/21/2018, 142 PM, MD, Anne Arundel, Londontowne, 3, SW, 38.89776, -76.59653, rain_06, 1.20, inch, cwop, 6-hourly rainfall,
:7/21/2018, 159 PM, MD, Anne Arundel, Odenton, , , 39.06627, -76.70569, rain_06, 1.02, inch, cwop, 6-hourly rainfall,
:7/21/2018, 138 PM, MD, Calvert, Patuxent River NAS, 2, NNE, 38.31917, -76.42167, rain_06, 1.56, inch, cwop, 6-hourly rainfall,
:7/21/2018, 153 PM, MD, Calvert, Eagle Harbor, 6, NE, 38.64417, -76.62133, rain_06, 1.39, inch, cwop, 6-hourly rainfall,
:7/21/2018, 140 PM, MD, Calvert, Eagle Harbor, 9, ENE, 38.61667, -76.52267, rain_06, 1.34, inch, cwop, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Howard, Lisbon, , , 39.33610, -77.06940, rain_06, 1.24, inch, AWS, 6-hourly rainfall,
:7/21/2018, 152 PM, MD, Montgomery, North Potomac, 2, E, 39.09371, -77.20281, rain_06, 1.03, inch, cwop, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Kettering, 3, ENE, 38.90440, -76.72630, rain_06, 1.28, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Bowie, 1, NW, 38.97470, -76.75050, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Upper Marlboro, 2, ENE, 38.82940, -76.71110, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Morningside, , , 38.82720, -76.88660, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 155 PM, MD, Prince Georges, Marlton, 2, WNW, 38.77283, -76.82717, rain_06, 1.03, inch, cwop, 6-hourly rainfall,
:7/21/2018, 155 PM, MD, Prince Georges, largo, 2, SSE, 38.84000, -76.80806, rain_06, 1.02, inch, mesowest, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Prince Georges, Capitol Heights, 1, SSE, 38.86020, -76.90380, rain_06, 1.00, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Kettering, 1, W, 38.89440, -76.81130, rain_06, 1.00, inch, AWS, 6-hourly rainfall,
:7/21/2018, 146 PM, MD, St. Marys, California, , , 38.29728, -76.48228, rain_06, 1.59, inch, cwop, 6-hourly rainfall,
:7/21/2018, 152 PM, MD, St. Marys, Patuxent River, , , 38.28330, -76.41670, rain_06, 1.55, inch, ASOS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, St. Marys, Charlotte Hall, 1, E, 38.47470, -76.76770, rain_06, 1.48, inch, AWS, 6-hourly rainfall,
:7/21/2018, 141 PM, MD, St. Marys, Lexington Park, , , 38.25483, -76.45483, rain_06, 1.24, inch, cwop, 6-hourly rainfall,
:7/21/2018, 114 PM, VA, Fairfax, Herndon, 1, SW, 38.95632, -77.40416, rain_06, 1.29, inch, vadot, 6-hourly rainfall,
:7/21/2018, 158 PM, VA, Spotsylvania, Thornburg, 3, W, 38.13557, -77.57991, rain_06, 1.19, inch, cwop, 6-hourly rainfall,
:7/21/2018, 152 PM, VA, Stafford, Storck, 2, NE, 38.44467, -77.59083, rain_06, 1.43, inch, cwop, 6-hourly rainfall,


Dh


429 PM EDT Sat Jul 21 2018

The following is a preliminary list of rainfall amounts of 1 inch or
more since noon today. This summary is also available on our home
Page at www.Weather.Gov/lwx.

********************Storm total rainfall********************

Location storm total time/date comments
                     rainfall of
                     /inches/ measurement

Maryland

... Anne Arundel County...
   Riva 2 WNW 1.60 330 PM 7/21 trained spotter

... Calvert County...
   Drum Point 2 N 2.37 245 PM 7/21 trained spotter

... Frederick County...
   New Market 2 NW 1.00 335 PM 7/21 NWS employee

... Howard County...
   Ellicott City 1.12 400 PM 7/21 broadcast media

... Montgomery County...
   Clarksburg 1.20 330 PM 7/21 County emrg mgmt
   Gaithersburg 1.00 330 PM 7/21 County emrg mgmt

... Prince Georges County...
   Cheltenham 1 NNE 1.80 400 PM 7/21 trained spotter

Virginia

... Spotsylvania County...
   Spotsylvania courtho 2.37 337 PM 7/21 trained spotter


***********************6 hour rainfall***********************

Location 6 hour time/date comments
                     rainfall of
                     /inches/ measurement

Maryland

... Anne Arundel County...
   Riva 3 SSW 1.53 153 PM 7/21 cwop
   Londontowne 1.48 151 PM 7/21 cwop
   Upper Marlboro 5 ESE 1.37 135 PM 7/21 cwop
   Fort Meade 1 NNE 1.36 134 PM 7/21 AWS
   Green Haven 2 ENE 1.34 200 PM 7/21 cwop
   Londontowne 1 SSW 1.32 146 PM 7/21 cwop
   US naval Academy 1.21 154 PM 7/21 ASOS
   South Gate 1 SSW 1.20 150 PM 7/21 cwop
   Londontowne 3 SW 1.20 142 PM 7/21 cwop
   Odenton 1.02 159 PM 7/21 cwop

... Calvert County...
   Patuxent River NAS 2 1.56 138 PM 7/21 cwop
   Eagle Harbor 6 NE 1.39 153 PM 7/21 cwop
   Eagle Harbor 9 ENE 1.34 140 PM 7/21 cwop

... Howard County...
   Lisbon 1.24 134 PM 7/21 AWS

... Montgomery County...
   North Potomac 2 E 1.03 152 PM 7/21 cwop

... Prince Georges County...
   Kettering 3 ENE 1.28 135 PM 7/21 AWS
   Bowie 1 NW 1.12 135 PM 7/21 AWS
   Upper Marlboro 2 ENE 1.12 135 PM 7/21 AWS
   Morningside 1.12 135 PM 7/21 AWS
   Marlton 2 WNW 1.03 155 PM 7/21 cwop
   largo 2 SSE 1.02 155 PM 7/21 mesowest
   Capitol Heights 1 ss 1.00 134 PM 7/21 AWS
   Kettering 1 W 1.00 135 PM 7/21 AWS

... St. Marys County...
   California 1.59 146 PM 7/21 cwop
   Patuxent River 1.55 152 PM 7/21 ASOS
   Charlotte Hall 1 E 1.48 135 PM 7/21 AWS
   Lexington Park 1.24 141 PM 7/21 cwop

Virginia

... Fairfax County...
   Herndon 1 SW 1.29 114 PM 7/21 vadot

... Spotsylvania County...
   Thornburg 3 W 1.19 158 PM 7/21 cwop

... Stafford County...
   Storck 2 NE 1.43 152 PM 7/21 cwop


*****metadata*****
:7/21/2018, 330 PM, MD, Anne Arundel, Riva, 2, WNW, 38.95980, -76.61680, rain, 1.60, inch, trained spotter, storm total rainfall,
:7/21/2018, 245 PM, MD, Calvert, Drum Point, 2, N, 38.36180, -76.42970, rain, 2.37, inch, trained spotter, storm total rainfall,
:7/21/2018, 335 PM, MD, Frederick, New Market, 2, NW, 39.40010, -77.29990, rain, 1.00, inch, NWS employee, storm total rainfall,
:7/21/2018, 400 PM, MD, Howard, Ellicott City, , , 39.27210, -76.83460, rain, 1.12, inch, broadcast media, storm total rainfall,
:7/21/2018, 330 PM, MD, Montgomery, Clarksburg, , , 39.23860, -77.27970, rain, 1.20, inch, County emrg mgmt, storm total rainfall,
:7/21/2018, 330 PM, MD, Montgomery, Gaithersburg, , , 39.14120, -77.21660, rain, 1.00, inch, County emrg mgmt, storm total rainfall,
:7/21/2018, 400 PM, MD, Prince Georges, Cheltenham, 1, NNE, 38.75250, -76.81530, rain, 1.80, inch, trained spotter, storm total rainfall,
:7/21/2018, 337 PM, VA, Spotsylvania, Spotsylvania courthouse, 1, ENE, 38.20170, -77.57840, rain, 2.37, inch, trained spotter, storm total rainfall,
:7/21/2018, 153 PM, MD, Anne Arundel, Riva, 3, SSW, 38.90117, -76.61467, rain_06, 1.53, inch, cwop, 6-hourly rainfall,
:7/21/2018, 151 PM, MD, Anne Arundel, Londontowne, , , 38.94800, -76.55833, rain_06, 1.48, inch, cwop, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Anne Arundel, Upper Marlboro, 5, ESE, 38.76617, -76.67108, rain_06, 1.37, inch, cwop, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Anne Arundel, Fort Meade, 1, NNE, 39.12550, -76.73830, rain_06, 1.36, inch, AWS, 6-hourly rainfall,
:7/21/2018, 200 PM, MD, Anne Arundel, Green Haven, 2, ENE, 39.15417, -76.49567, rain_06, 1.34, inch, cwop, 6-hourly rainfall,
:7/21/2018, 146 PM, MD, Anne Arundel, Londontowne, 1, SSW, 38.91882, -76.56579, rain_06, 1.32, inch, cwop, 6-hourly rainfall,
:7/21/2018, 154 PM, MD, Anne Arundel, US naval Academy, , , 38.98330, -76.48330, rain_06, 1.21, inch, ASOS, 6-hourly rainfall,
:7/21/2018, 150 PM, MD, Anne Arundel, South Gate, 1, SSW, 39.11250, -76.62967, rain_06, 1.20, inch, cwop, 6-hourly rainfall,
:7/21/2018, 142 PM, MD, Anne Arundel, Londontowne, 3, SW, 38.89776, -76.59653, rain_06, 1.20, inch, cwop, 6-hourly rainfall,
:7/21/2018, 159 PM, MD, Anne Arundel, Odenton, , , 39.06627, -76.70569, rain_06, 1.02, inch, cwop, 6-hourly rainfall,
:7/21/2018, 138 PM, MD, Calvert, Patuxent River NAS, 2, NNE, 38.31917, -76.42167, rain_06, 1.56, inch, cwop, 6-hourly rainfall,
:7/21/2018, 153 PM, MD, Calvert, Eagle Harbor, 6, NE, 38.64417, -76.62133, rain_06, 1.39, inch, cwop, 6-hourly rainfall,
:7/21/2018, 140 PM, MD, Calvert, Eagle Harbor, 9, ENE, 38.61667, -76.52267, rain_06, 1.34, inch, cwop, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Howard, Lisbon, , , 39.33610, -77.06940, rain_06, 1.24, inch, AWS, 6-hourly rainfall,
:7/21/2018, 152 PM, MD, Montgomery, North Potomac, 2, E, 39.09371, -77.20281, rain_06, 1.03, inch, cwop, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Kettering, 3, ENE, 38.90440, -76.72630, rain_06, 1.28, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Bowie, 1, NW, 38.97470, -76.75050, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Upper Marlboro, 2, ENE, 38.82940, -76.71110, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Morningside, , , 38.82720, -76.88660, rain_06, 1.12, inch, AWS, 6-hourly rainfall,
:7/21/2018, 155 PM, MD, Prince Georges, Marlton, 2, WNW, 38.77283, -76.82717, rain_06, 1.03, inch, cwop, 6-hourly rainfall,
:7/21/2018, 155 PM, MD, Prince Georges, largo, 2, SSE, 38.84000, -76.80806, rain_06, 1.02, inch, mesowest, 6-hourly rainfall,
:7/21/2018, 134 PM, MD, Prince Georges, Capitol Heights, 1, SSE, 38.86020, -76.90380, rain_06, 1.00, inch, AWS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, Prince Georges, Kettering, 1, W, 38.89440, -76.81130, rain_06, 1.00, inch, AWS, 6-hourly rainfall,
:7/21/2018, 146 PM, MD, St. Marys, California, , , 38.29728, -76.48228, rain_06, 1.59, inch, cwop, 6-hourly rainfall,
:7/21/2018, 152 PM, MD, St. Marys, Patuxent River, , , 38.28330, -76.41670, rain_06, 1.55, inch, ASOS, 6-hourly rainfall,
:7/21/2018, 135 PM, MD, St. Marys, Charlotte Hall, 1, E, 38.47470, -76.76770, rain_06, 1.48, inch, AWS, 6-hourly rainfall,
:7/21/2018, 141 PM, MD, St. Marys, Lexington Park, , , 38.25483, -76.45483, rain_06, 1.24, inch, cwop, 6-hourly rainfall,
:7/21/2018, 114 PM, VA, Fairfax, Herndon, 1, SW, 38.95632, -77.40416, rain_06, 1.29, inch, vadot, 6-hourly rainfall,
:7/21/2018, 158 PM, VA, Spotsylvania, Thornburg, 3, W, 38.13557, -77.57991, rain_06, 1.19, inch, cwop, 6-hourly rainfall,
:7/21/2018, 152 PM, VA, Stafford, Storck, 2, NE, 38.44467, -77.59083, rain_06, 1.43, inch, cwop, 6-hourly rainfall,


Dh