Alert archive / Maryland / Severe Thunderstorm Warnings in 2015
Severe Thunderstorm Warning 30, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 1, 2015, 6:53 PM EDT for Kent County, Queen Anne's County, Maryland; Kent County, New Castle County, Delaware. It was in force for 37 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jun 1, 2015, 6:53 PM EDT (22:53 UTC)
- Expired
- Jun 1, 2015, 7:30 PM EDT
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, New Castle County, DE, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 46 km from the middle of the area, began a volume at 22:56 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, 10.9 hours before the alert went out and 51 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
- 355 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 779 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 89 m²/s²
- 0-3 km storm-relative helicity
- 102 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
190
WUUS51 KPHI 012253
SVRPHI
DEC001-003-MDC029-035-012330-
/O.NEW.KPHI.SV.W.0030.150601T2253Z-150601T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
653 PM EDT MON JUN 1 2015
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN KENT COUNTY IN CENTRAL DELAWARE...
SOUTHWESTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
NORTHEASTERN QUEEN ANNE'S COUNTY IN NORTHEASTERN MARYLAND...
EAST CENTRAL KENT COUNTY IN NORTHEASTERN MARYLAND...
* UNTIL 730 PM EDT
* AT 652 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
CAPABLE OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS
OF 60 MPH. THIS STORM WAS LOCATED NEAR HARTLY...OR 13 MILES WEST OF
DOVER...AND MOVING EAST AT 35 MPH.
* LOCATIONS IMPACTED INCLUDE...
DOVER...SMYRNA...CAMDEN...CLAYTON...CHESWOLD...MILLINGTON...
HARTLY...DOVER SPEEDWAY...WOODLAND BEACH...GREEN SPRING...DOVER
BASE HOUSING...DELANEY CORNER...MASSEY...RISING SUN-LEBANON...
WYOMING...KENTON...LITTLE CREEK...LEIPSIC...TEMPLEVILLE AND RODNEY
VILLAGE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION...MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3932 7586 3934 7547 3931 7543 3925 7540
3924 7541 3920 7540 3910 7540 3913 7575
3914 7575 3913 7581
TIME...MOT...LOC 2252Z 263DEG 30KT 3923 7575
$$1 follow-up statement
951
WWUS51 KPHI 012312
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
712 PM EDT MON JUN 1 2015
MDC029-035-012320-
/O.CAN.KPHI.SV.W.0030.000000T0000Z-150601T2330Z/
QUEEN ANNE'S MD-KENT MD-
712 PM EDT MON JUN 1 2015
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S AND
EAST CENTRAL KENT COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF
THE WARNED AREA. THEREFORE THE WARNING HAS BEEN CANCELLED.
LAT...LON 3934 7547 3931 7543 3925 7540 3924 7541
3920 7540 3910 7540 3916 7565 3920 7570
3921 7571 3933 7573
TIME...MOT...LOC 2310Z 263DEG 30KT 3925 7555
$$
DEC001-003-012330-
/O.CON.KPHI.SV.W.0030.000000T0000Z-150601T2330Z/
KENT DE-NEW CASTLE DE-
712 PM EDT MON JUN 1 2015
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR NORTHERN KENT AND SOUTH CENTRAL NEW CASTLE COUNTIES...
AT 710 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING QUARTER SIZE HAIL AND DAMAGING WINDS IN EXCESS OF 60
MPH. THIS STORM WAS LOCATED OVER CHESWOLD...OR NEAR DOVER...MOVING
EAST AT 35 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS...LARGE HAIL...DEADLY
LIGHTNING AND VERY HEAVY RAIN. FOR YOUR PROTECTION MOVE TO AN
INTERIOR ROOM ON THE LOWEST FLOOR OF YOUR HOME OR BUSINESS. HEAVY
RAINS FLOOD ROADS QUICKLY SO DO NOT DRIVE INTO AREAS WHERE WATER
COVERS THE ROAD.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THIS STORM...AND MAY LEAD
TO FLASH FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
&&
LAT...LON 3934 7547 3931 7543 3925 7540 3924 7541
3920 7540 3910 7540 3916 7565 3920 7570
3921 7571 3933 7573
TIME...MOT...LOC 2310Z 263DEG 30KT 3925 7555
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 1, 3:13 AM EDT | Areal Flood Advisory | PHI | Cecil, Kent | 3 hr |
| Jun 1, 4:20 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 26 hr |
| Jun 1, 5:35 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 70 min |
| Jun 1, 5:56 PM EDT | Areal Flood Advisory | PHI | Cecil, Kent, Queen Anne's | 6 hr |
| Jun 1, 6:29 PM EDT | Flash Flood Warning | PHI | Cecil | 3 hr |
| Jun 1, 7:54 PM EDT | Special Weather Statement | PHI | Caroline | 111 min |
| Jun 1, 2:17 AM EDT | Special Weather Statement | PHI | New Castle | 43 min |
| Jun 1, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 43 min |
| Jun 1, 4:35 PM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Jun 1, 5:27 PM EDT | Areal Flood Advisory | PHI | New Castle | 3 hr |
| Jun 1, 6:11 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 6 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2015Severe Thunderstorm Warnings in Delaware, 2015Every severe thunderstorm warning in 2015
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.