Alert archive / Maryland / River Flood Warnings in 2014
River Flood Warning 5, NWS Baltimore/Washington
NWS Baltimore/Washington issued this river flood warning at Apr 30, 2014, 7:17 AM EDT for Montgomery County, Maryland. It took effect at Apr 30, 2014, 10:57 AM EDT. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Apr 30, 2014, 7:17 AM EDT (11:17 UTC)
- In effect from
- Apr 30, 2014, 10:57 AM EDT
- Expired
- May 1, 2014, 3:23 PM EDT
- In force
- 28 hr
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
- Flood severity
- Minor
County Montgomery County, MD
The radar
The Sterling radar (KLWX), 30 km from the middle of the area, began a volume at 11:21 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Seneca Creek at Dawsonville (DAWM2). The gauge peaked at 10.61 ft at Apr 30, 2014, 11:00 PM EDT.
- Action stage
- 5 ft
- Minor stage
- 7.5 ft
- Moderate stage
- 11 ft
- Major stage
- 16 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01645000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
What forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Baltimore/Washington wrote its last area forecast discussion before this river flood warning went out at Apr 30, 5:08 AM EDT, 2 hours 9 minutes earlier.
Area forecast discussion, Apr 30, 5:08 AM EDT, 2 hours 9 minutes before
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<h1 id="headline">This service is currently unavailable.</h1>
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The site you requested is temporarily down for maintenance or an unexpected outage.
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Please try again in a few minutes.
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 29, 8:57 PM EDT | Coastal Flood Advisory | LWX | Arlington, Fairfax, King George, Stafford, City of Alexandria, City of Fairfax and 1 more | 64 hr |
| Apr 29, 10:01 PM EDT | River Flood Watch | LWX | Fairfax, Loudoun | 18 hr |
| Apr 30, 2:04 AM EDT | Coastal Flood Warning | LWX | Arlington, City of Alexandria, City of Falls Church | 34 hr |
| Apr 30, 7:43 AM EDT | River Flood Warning | LWX | Culpeper, Fauquier | 50 hr |
| Apr 30, 8:31 AM EDT | Areal Flood Warning | LWX | Culpeper, Fauquier, Orange, Prince William, Spotsylvania, Stafford and 3 more | 30 hr |
| Apr 30, 8:52 AM EDT | River Flood Warning | LWX | Spotsylvania, Stafford, City of Fredericksburg | 42 hr |
| Apr 30, 8:52 AM EDT | River Flood Warning | LWX | Stafford, City of Fredericksburg | 43 hr |
| Apr 30, 8:52 AM EDT | River Flood Warning | LWX | Culpeper, Orange, Spotsylvania | 35 hr |
| Apr 30, 9:04 AM EDT | Areal Flood Warning | LWX | Arlington, Fairfax, Loudoun, City of Alexandria, City of Fairfax, City of Falls Church | 27 hr |
| Apr 30, 9:44 AM EDT | River Flood Warning | LWX | Loudoun | 36 hr |
| Apr 30, 11:02 AM EDT | Areal Flood Warning | LWX | Albemarle, Culpeper, Fauquier, Greene, Madison, Nelson and 3 more | 21 hr |
| Apr 30, 12:40 PM EDT | River Flood Warning | LWX | Loudoun | 51 hr |
| Apr 30, 1:20 PM EDT | Flash Flood Warning | LWX | Arlington, Fairfax, Prince William, City of Fairfax, City of Falls Church, City of Manassas and 1 more | 3 hr |
| Apr 30, 4:04 PM EDT | Special Marine Warning | LWX | 56 min | |
| Apr 30, 4:38 PM EDT | Special Marine Warning | LWX | 67 min | |
| Apr 30, 5:19 PM EDT | Flash Flood Warning | LWX | Culpeper, Fairfax, Fauquier, Loudoun, Orange, Prince William and 4 more | 3 hr |
| Apr 30, 7:29 AM EDT | Areal Flood Warning | LWX | Anne Arundel, Baltimore, Howard, Prince George's | 12 hr |
| Apr 30, 8:55 AM EDT | River Flood Warning | LWX | Frederick | 42 hr |
| Apr 30, 9:31 AM EDT | Areal Flood Warning | LWX | Baltimore, Carroll, Frederick, Harford, Howard, City of Baltimore | 32 hr |
| Apr 30, 12:57 PM EDT | Flash Flood Warning | LWX | Howard, Montgomery | 9 hr |
| Apr 30, 1:39 PM EDT | Flash Flood Warning | LWX | Baltimore, Carroll, Harford, Howard, Montgomery, City of Baltimore | 6 hr |
| Apr 30, 3:07 PM EDT | Flash Flood Warning | LWX | Anne Arundel, Howard, Montgomery, Prince George's | 3 hr |
| Apr 30, 3:50 PM EDT | Flash Flood Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 3 hr |
| Apr 30, 4:19 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Charles, Saint Mary's | 41 min |
| Apr 30, 4:25 PM EDT | Tornado Warning | LWX | Charles, Saint Mary's | 35 min |
| Apr 30, 6:38 PM EDT | Areal Flood Warning | LWX | Calvert, Charles, Prince George's, Saint Mary's | 14 hr |
Nearby
River Flood Warnings in Maryland, 2014Every river flood warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.