Alert archive / Maryland / Severe Thunderstorm Warnings in 2016
Severe Thunderstorm Warning 15, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Apr 7, 2016, 10:44 AM EDT for 6 counties in Maryland. It was in force for 61 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
- Apr 7, 2016, 10:44 AM EDT (14:44 UTC)
- Expired
- Apr 7, 2016, 11:45 AM EDT
- In force
- 61 min
- Issued by
- NWS Baltimore/Washington
- Area
- Storm-based polygon
Counties Anne Arundel County, MD, Baltimore County, MD, City of Baltimore, MD, Harford County, MD, Howard County, MD, Prince George's County, MD
The radar
The Sterling radar (KLWX), 78 km from the middle of the area, began a volume at 14:45 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 nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 2.7 hours before the alert went out and 54 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
- 32 J/kg
- Mixed-layer CIN
- -33 J/kg
- Mixed-layer LCL
- 605 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 299 m²/s²
- 0-3 km storm-relative helicity
- 259 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 Apr 7, 10:18 AM EDT, 26 minutes earlier.
Area forecast discussion, Apr 7, 10:18 AM EDT, 26 minutes before
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</html>Hazardous weather outlook, Apr 7, 5:02 AM EDT, 5 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC 502 AM EDT THU APR 7 2016 ANZ530>543-DCZ001-MDZ011-013-014-016>018-508-VAZ052>057-080900- 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-SOUTHERN BALTIMORE-PRINCE GEORGES- ANNE ARUNDEL-CHARLES-ST. MARYS-CALVERT-SOUTHEAST HARFORD- PRINCE WILLIAM/MANASSAS/MANASSAS PARK-FAIRFAX- ARLINGTON/FALLS CHURCH/ALEXANDRIA-STAFFORD-SPOTSYLVANIA- KING GEORGE- 502 AM EDT THU APR 7 2016 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...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY GALE FORCE WINDS ARE POSSIBLE OVER THE WATERS ON SATURDAY. TEMPERATURES BELOW FREEZING ARE EXPECTED ACROSS THE REGION SATURDAY NIGHT...WHICH WOULD DAMAGE OR KILL TENDER VEGETATION. A FREEZE WARNING MAY BE REQUIRED. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME. MDZ003>006-501>507-VAZ025>031-036>040-050-051-501>508-WVZ050>053- 055-501>506-080900- WASHINGTON-FREDERICK MD-CARROLL-NORTHERN BALTIMORE- EXTREME WESTERN ALLEGANY-CENTRAL AND EASTERN ALLEGANY- NORTHWEST MONTGOMERY-CENTRAL AND SOUTHEAST MONTGOMERY- NORTHWEST HOWARD-CENTRAL AND SOUTHEAST HOWARD-NORTHWEST HARFORD- AUGUSTA-ROCKINGHAM-SHENANDOAH-FREDERICK VA-PAGE-WARREN-CLARKE- NELSON-ALBEMARLE-GREENE-MADISON-RAPPAHANNOCK-ORANGE-CULPEPER- NORTHERN FAUQUIER-SOUTHERN FAUQUIER-WESTERN HIGHLAND- EASTERN HIGHLAND-WESTERN LOUDOUN-EASTERN LOUDOUN- NORTHERN VIRGINIA BLUE RIDGE-CENTRAL VIRGINIA BLUE RIDGE- HAMPSHIRE-MORGAN-BERKELEY-JEFFERSON-HARDY-WESTERN GRANT- EASTERN GRANT-WESTERN MINERAL-EASTERN MINERAL-WESTERN PENDLETON- EASTERN PENDLETON- 502 AM EDT THU APR 7 2016 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...TODAY AND TONIGHT NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY A PERIOD OF UPSLOPE SNOW SHOWERS IS EXPECTED ALONG THE ALLEGHENY FRONT THURSDAY NIGHT INTO FRIDAY WITH SEVERAL INCHES OF ACCUMULATION POSSIBLE. ACCUMULATING SNOW IS LIKELY FRIDAY NIGHT THROUGH SATURDAY FOR LOCATIONS ALONG AND WEST OF THE ALLEGHENY FRONT. SIGNIFICANT SNOWFALL ACCUMULATIONS ARE POSSIBLE. TEMPERATURES BELOW FREEZING ARE EXPECTED ACROSS THE REGION FRIDAY AND SATURDAY NIGHTS...WHICH WOULD DAMAGE OR KILL TENDER VEGETATION. A FREEZE WARNING MAY BE REQUIRED FOR AREAS WHERE THE GROWING SEASON HAS STARTED...WHICH IS INCLUDES LOCATIONS EAST OF THE POTOMAC HIGHLANDS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.
In the hours before
Special weather statement, Apr 7, 10:03 AM EDT, 41 minutes 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 |
|---|---|---|---|---|
| Apr 7, 4:11 AM EDT | Small Craft Advisory | LWX | 12 hr | |
| Apr 7, 9:54 AM EDT | Special Marine Warning | LWX | 81 min | |
| Apr 7, 10:18 AM EDT | Special Marine Warning | LWX | 87 min | |
| Apr 7, 11:22 AM EDT | Special Marine Warning | LWX | 83 min | |
| Apr 7, 3:59 PM EDT | Special Marine Warning | LWX | 91 min | |
| Apr 7, 4:09 PM EDT | Special Marine Warning | LWX | 66 min | |
| Apr 7, 4:23 PM EDT | Gale Warning | LWX | 6 hr | |
| Apr 7, 4:23 PM EDT | Small Craft Advisory | LWX | 26 hr | |
| Apr 7, 5:00 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, City of Alexandria | 45 min |
| Apr 7, 6:05 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper, King George, Orange, Spotsylvania, Stafford, City of Fredericksburg | 25 min |
| Apr 7, 6:50 PM EDT | Winter Weather Advisory | LWX | Highland | 14 hr |
| Apr 7, 10:03 AM EDT | Special Weather Statement | LWX | Saint Mary's | 57 min |
| Apr 7, 10:33 AM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Montgomery, Prince George's | 41 min |
| Apr 7, 4:39 PM EDT | Coastal Flood Advisory | LWX | Anne Arundel | 3 hr |
| Apr 7, 5:04 PM EDT | Severe Thunderstorm Warning | LWX | Baltimore, Carroll, Harford | 41 min |
| Apr 7, 5:30 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel, Calvert, Prince George's | 30 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2016Every severe thunderstorm warning in 2016
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.