Alert archive / Maryland / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 177, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Jul 13, 2014, 10:05 PM EDT for Baltimore County, Harford County, Maryland. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jul 13, 2014, 10:05 PM EDT (02:05 UTC)
- Expired
- Jul 13, 2014, 10:45 PM EDT
- In force
- 40 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Baltimore County, MD, Harford County, MD
The radar
The Sterling radar (KLWX), 105 km from the middle of the area, began a volume at 02:07 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 13, 7:49 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 00:00Z, 2.1 hours before the alert went out and 101 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 569 J/kg
- Mixed-layer CIN
- -52 J/kg
- Mixed-layer LCL
- 1600 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 94 m²/s²
- 0-3 km storm-relative helicity
- 172 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Jul 13, 8:16 PM EDT, 1 hour 49 minutes earlier.
Area forecast discussion, Jul 13, 8:16 PM EDT, 1 hour 49 minutes before
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</html>Hazardous weather outlook, Jul 13, 4:11 PM EDT, 5 hours 54 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 411 PM EDT SUN JUL 13 2014 ANZ530>543-DCZ001-MDZ006-007-011-013-014-016>018-VAZ052>057- 140915- CHESAPEAKE BAY NORTH OF POOLES ISLAND MD- CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD- CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD- CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD- CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA- TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD- TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD- TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA- PATAPSCO RIVER INCLUDING BALTIMORE HARBOR- CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY- CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER- PATUXENT RIVER TO BROOMES ISLAND MD- TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-DISTRICT OF COLUMBIA-NORTHERN BALTIMORE-HARFORD- SOUTHERN BALTIMORE-PRINCE GEORGES-ANNE ARUNDEL-CHARLES-ST. MARYS- CALVERT-PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- 411 PM EDT SUN JUL 13 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MARYLAND PORTION OF THE CHESAPEAKE BAY...TIDAL POTOMAC RIVER...AND ADJACENT COUNTIES IN CENTRAL MARYLAND AND NORTHERN VIRGINIA AS WELL AS THE DISTRICT OF COLUMBIA. .DAY ONE...TONIGHT A FEW THUNDERSTORMS MAY BE CAPABLE OF PRODUCING DAMAGING WIND GUSTS THIS EVENING. A SMALL CRAFT ADVISORY IS IN EFFECT THROUGH TONIGHT FOR PORTIONS OF THE WATERS. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THE SMALL CRAFT ADVISORY CONTINUES FOR MARYLAND WATERS SOUTH OF SANDY POINT MONDAY MORNING. THUNDERSTORMS WILL BE MORE NUMEROUS MONDAY AND TUESDAY. SEVERE THUNDERSTORMS...CAPABLE OF DAMAGING WIND GUSTS AND LARGE HAIL...WILL BE POSSIBLE EACH DAY. AN ISOLATED TORNADO CANNOT BE RULED OUT LATE MONDAY. IN ADDITION...ANY THUNDERSTORM WILL PRODUCE VERY HEAVY RAINFALL AND MAY RESULT IN LOCALIZED FLASH FLOODING. MINOR COASTAL FLOODING IS POSSIBLE AT SENSITIVE LOCATIONS ALONG THE WESTERN SHORELINE OF THE CHESAPEAKE BAY AND UPPER TIDAL POTOMAC DURING HIGH TIDE MONDAY MORNING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS LIKELY LATE MONDAY AND POSSIBLE ON TUESDAY AS WELL. MDZ003>005-009-010-501-502-VAZ025>031-036>040-042-050-051-501>504- WVZ050>053-055-501>506-140915- WASHINGTON-FREDERICK MD-CARROLL-MONTGOMERY-HOWARD- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY-AUGUSTA- ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE-NELSON- ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-LOUDOUN-ORANGE-CULPEPER- NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND- EASTERN HIGHLAND-HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY- WESTERN GRANT-EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL- WESTERN PENDLETON-EASTERN PENDLETON- 411 PM EDT SUN JUL 13 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR EASTERN WEST VIRGINIA... NORTHERN AND CENTRAL VIRGINIA...AND CENTRAL AND WESTERN MARYLAND WITH THE EXCEPTION OF GARRETT COUNTY. .DAY ONE...TONIGHT A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR PORTIONS OF THE EASTERN PANHANDLE OF WEST VIRGINIA AND WESTERN MARYLAND UNTIL 11 PM. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY THUNDERSTORMS WILL BE MORE NUMEROUS MONDAY AND TUESDAY. THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS...CAPABLE OF DAMAGING WIND GUSTS...LARGE HAIL...AND AN ISOLATED TORNADO LATE MONDAY. THERE IS AN ISOLATED SEVERE RISK ON TUESDAY...PRIMARILY EAST OF THE BLUE RIDGE. IN ADDITION...ANY THUNDERSTORM WILL PRODUCE VERY HEAVY RAINFALL AND MAY RESULT IN LOCALIZED FLASH FLOODING. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS IN EFFECT FOR THE EASTERN PANHANDLE OF WEST VIRGINIA AND WESTERN MARYLAND. THIS WILL LIKELY BE NEEDED LATE MONDAY AND POSSIBLE ON TUESDAY AS WELL.
In the hours before
Local storm report, Jul 13, 9:51 PM EDT, 14 minutes before
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</html>Local storm report, Jul 13, 9:53 PM EDT, 12 minutes before
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</html>Local storm report, Jul 13, 9:55 PM EDT, 10 minutes before
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</html>Local storm report, Jul 13, 10:00 PM EDT, 5 minutes before
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</html>Local storm report, Jul 13, 10:03 PM EDT, 2 minutes before
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</html>Local storm report, Jul 13, 10:04 PM EDT, 1 minute before
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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 |
|---|---|---|---|---|
| Jul 13, 8:24 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Fauquier, Loudoun, Prince William | 36 min |
| Jul 13, 8:40 PM EDT | Special Marine Warning | LWX | 2 hr | |
| Jul 13, 9:02 PM EDT | Special Marine Warning | LWX | 118 min | |
| Jul 14, 12:25 AM EDT | Special Marine Warning | LWX | 2 hr | |
| Jul 14, 1:56 PM EDT | Small Craft Advisory | LWX | 9 hr | |
| Jul 14, 2:57 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Rappahannock, Warren | 33 min |
| Jul 14, 3:10 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Rappahannock | 35 min |
| Jul 14, 3:23 PM EDT | Special Marine Warning | LWX | 97 min | |
| Jul 14, 3:31 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, Fauquier, Rappahannock | 29 min |
| Jul 14, 3:47 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Fauquier, Loudoun, Prince William, City of Fairfax, City of Manassas and 1 more | 43 min |
| Jul 14, 3:53 PM EDT | Special Marine Warning | LWX | 112 min | |
| Jul 14, 4:52 PM EDT | Special Marine Warning | LWX | 83 min | |
| Jul 14, 5:11 PM EDT | Special Marine Warning | LWX | 94 min | |
| Jul 14, 5:29 PM EDT | Special Marine Warning | LWX | 61 min | |
| Jul 14, 5:57 PM EDT | Special Marine Warning | LWX | 93 min | |
| Jul 14, 6:11 PM EDT | Special Marine Warning | LWX | 94 min | |
| Jul 14, 6:38 PM EDT | Special Marine Warning | LWX | 97 min | |
| Jul 14, 7:52 PM EDT | Special Marine Warning | LWX | 83 min | |
| Jul 14, 7:59 PM EDT | Special Marine Warning | LWX | 91 min | |
| Jul 13, 8:07 PM EDT | Severe Thunderstorm Warning | LWX | Carroll, Frederick, Washington | 38 min |
| Jul 13, 9:17 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Baltimore, Howard, Montgomery, Prince George's | 28 min |
| Jul 14, 4:48 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Harford | 42 min |
| Jul 14, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Washington | 33 min |
| Jul 14, 5:26 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Prince George's | 49 min |
| Jul 14, 5:30 PM EDT | Tornado Warning | LWX | Baltimore | 30 min |
| Jul 14, 5:55 PM EDT | Tornado Warning | LWX | Baltimore, Harford | 35 min |
| Jul 14, 6:51 PM EDT | Severe Thunderstorm Warning | LWX | Calvert, Saint Mary's | 24 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2014Every severe thunderstorm 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.