Alert archive / Maryland / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 193, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 30, 2008, 6:44 PM EDT for Cecil County, Kent County, Maryland; New Castle County, Delaware. It was in force for 35 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
- Jul 30, 2008, 6:44 PM EDT (22:44 UTC)
- Expired
- Jul 30, 2008, 7:19 PM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties New Castle County, DE, Cecil County, MD, Kent County, MD
The radar
The Dover AFB radar (KDOX), 78 km from the middle of the area, began a volume at 22:43 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 30, 4:53 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.7 hours before the alert went out and 15 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
- 686 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 962 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- -17 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 302244
SVRPHI
DEC003-MDC015-029-302345-
/O.NEW.KPHI.SV.W.0193.080730T2244Z-080730T2345Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
644 PM EDT WED JUL 30 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CECIL COUNTY IN NORTHEAST MARYLAND...
NORTHEASTERN KENT COUNTY IN NORTHEAST MARYLAND...
SOUTHWESTERN NEW CASTLE COUNTY IN NORTHERN DELAWARE...
* UNTIL 745 PM EDT
* AT 637 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
BETTERTON...OR ABOUT 18 MILES WEST OF MIDDLETOWN...AND MOVING EAST
AT 15 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CECILTON BY 715 PM...
6 MILES SOUTH OF CAYOTS BY 720 PM...
SASSAFRAS BY 725 PM...
WARWICK BY 730 PM...
BOHEMIAS MILLS BY 735 PM...
MIDDLETOWN AND 8 MILES SOUTH OF MOUNT PLEASANT BY 745 PM...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT THURSDAY
MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN NEW
JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 3937 7609 3937 7602 3938 7600 3938 7602
3938 7603 3940 7605 3944 7600 3946 7602
3948 7601 3952 7569 3934 7565 3930 7566
3934 7609
TIME...MOT...LOC 2244Z 267DEG 13KT 3939 7601
$$1 follow-up statement
000
WWUS51 KPHI 302319
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
719 PM EDT WED JUL 30 2008
DEC003-MDC015-029-302329-
/O.CAN.KPHI.SV.W.0193.000000T0000Z-080730T2345Z/
CECIL MD-KENT MD-NEW CASTLE DE-
719 PM EDT WED JUL 30 2008
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NEW CASTLE...
NORTHEASTERN KENT AND SOUTHEASTERN CECIL COUNTIES IS CANCELLED...
AT 7:18 PM THUNDERSTORMS CONTINUED OVER EASTERN KENT COUNTY
MARYLAND AND SOUTHWESTERN NEW CASTLE COUNTY DELAWARE, BUT THE STORMS
HAVE WEAKENED.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT EDT
THURSDAY MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND SOUTHERN
NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.
LAT...LON 3937 7609 3937 7602 3938 7600 3938 7602
3938 7603 3940 7605 3944 7600 3946 7602
3948 7601 3952 7569 3934 7565 3930 7566
3934 7609
TIME...MOT...LOC 2318Z 267DEG 13KT 3940 7585
$$The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 30, 6:19 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 56 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2008Severe Thunderstorm Warnings in Delaware, 2008Every severe thunderstorm warning in 2008
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.