Alert archive / Maryland / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 19, 2013, 7:29 PM EDT for 4 counties in Maryland. It was in force for 61 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 19, 2013, 7:29 PM EDT (23:29 UTC)
- Expired
- Apr 19, 2013, 8:30 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 64 km from the middle of the area, began a volume at 23:28 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 19, 8:15 PM EDT | TSTM WND DMG | Easton, MD | TREES DOWN |
| Apr 19, 8:15 PM EDT | TSTM WND DMG | Sudlersville, MD | TREE TOPS SNAPPED ON EAST MAIN STREET AND IN SUDLERSVILLE CEMETERY |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 19, 2:31 PM EDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 11.5 hours before the alert went out and 107 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
- 16 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 705 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 215 m²/s²
- 0-3 km storm-relative helicity
- 226 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
752
WUUS51 KPHI 192329
SVRPHI
MDC011-029-035-041-200030-
/O.NEW.KPHI.SV.W.0008.130419T2329Z-130420T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
729 PM EDT FRI APR 19 2013
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CAROLINE COUNTY IN EASTERN MARYLAND...
TALBOT COUNTY IN EASTERN MARYLAND...
KENT COUNTY IN NORTHEAST MARYLAND...
QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
* UNTIL 830 PM EDT
* AT 723 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED 16 MILES SOUTHWEST OF TILGHMAN
ISLAND...OR 15 MILES NORTHWEST OF COVE POINT...AND MOVING NORTHEAST
AT 30 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
TILGHMAN ISLAND AROUND 735 PM EDT...
ST. MICHAELS AND TALBOT AROUND 745 PM EDT...
WYE MILLS...SKIPTON AND CORDOVA AROUND 755 PM EDT...
STARR...JUMPTOWN AND QUEEN ANNE AROUND 810 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
BRIEF HEAVY DOWNPOURS AND CLOUD TO GROUND LIGHTNING CAN ALSO BE
EXPECTED.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FRIDAY EVENING
FOR NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1100 PM EDT FRIDAY EVENING FOR EASTERN PENNSYLVANIA.
&&
LAT...LON 3887 7625 3881 7621 3883 7620 3894 7624
3883 7638 3894 7637 3905 7631 3899 7627
3900 7618 3914 7629 3932 7619 3938 7611
3938 7582 3938 7579 3865 7571 3869 7589
3857 7604 3873 7626 3867 7635 3877 7639
TIME...MOT...LOC 2328Z 224DEG 63KT 3864 7643
$$
JJM1 follow-up statement
273
WWUS51 KPHI 200013
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
813 PM EDT FRI APR 19 2013
MDC011-029-035-041-200030-
/O.CON.KPHI.SV.W.0008.000000T0000Z-130420T0030Z/
KENT MD-CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-
813 PM EDT FRI APR 19 2013
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM EDT
FOR TALBOT...QUEEN ANNE'S...CAROLINE AND KENT COUNTIES...
AT 806 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR EASTON...OR 18 MILES
NORTHWEST OF HURLOCK...MOVING NORTHEAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
RIDGELY...GREENSBORO...OAKLAND AND 825 PM EDT...
GOLDSBORO AND HENDERSON BY 830 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT FRIDAY EVENING
FOR NORTHEASTERN MARYLAND. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 1100 PM EDT FRIDAY EVENING FOR EASTERN PENNSYLVANIA. A SEVERE
THUNDERSTORM WATCH ALSO REMAINS IN EFFECT UNTIL 1100 PM EDT FRIDAY
EVENING FOR DELAWARE AND NEW JERSEY AND SOUTHEAST PENNSYLVANIA.
&&
LAT...LON 3887 7625 3881 7621 3883 7620 3894 7624
3883 7638 3894 7637 3905 7631 3899 7627
3900 7618 3914 7629 3932 7619 3938 7611
3938 7582 3938 7579 3865 7571 3869 7589
3857 7604 3873 7626 3867 7635 3877 7639
TIME...MOT...LOC 0012Z 233DEG 59KT 3889 7598
$$
JJMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 19, 7:13 PM EDT | Special Weather Statement | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2013Every severe thunderstorm warning in 2013
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.