Alert archive / Maryland / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 21, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 28, 2008, 3:25 PM EDT for Cecil County, Kent County, Queen Anne's County, Maryland. It was in force for 65 min. 1 report 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 28, 2008, 3:25 PM EDT (19:25 UTC)
- Expired
- Apr 28, 2008, 4:30 PM EDT
- In force
- 65 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Cecil County, MD, Kent County, MD, Queen Anne's County, MD
The radar
The Dover AFB radar (KDOX), 76 km from the middle of the area, began a volume at 19:25 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 28, 4:21 PM EDT | TSTM WND DMG | 1 Nw Sudlersville, MD | TREE KNOCKED DOWN. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 7.4 hours before the alert went out and 18 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
- 4 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 412 m above ground
- 0-6 km bulk shear
- 47 kt
- 0-1 km storm-relative helicity
- 224 m²/s²
- 0-3 km storm-relative helicity
- 293 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 281925
SVRPHI
MDC015-029-035-282030-
/O.NEW.KPHI.SV.W.0021.080428T1925Z-080428T2030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 PM EDT MON APR 28 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHEASTERN CECIL COUNTY IN NORTHEAST MARYLAND...
KENT COUNTY IN NORTHEAST MARYLAND...
NORTHERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND...
* UNTIL 430 PM EDT
* AT 321 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 6 MILES WEST OF ROCK HALL...OR
ABOUT 44 MILES WEST OF DOVER...AND MOVING NORTHEAST AT 38 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
CHESTERTOWN BY 345 PM EDT...
BETTERTON BY 355 PM EDT...
9 MILES NORTHWEST OF MILLINGTON BY 405 PM EDT...
CECILTON BY 410 PM EDT...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO OR WATERSPOUT MAY STILL
DEVELOP. IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE
OF SAFETY IN A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 3907 7624 3916 7629 3932 7619 3939 7611
3937 7605 3938 7600 3938 7603 3940 7605
3946 7600 3948 7594 3949 7595 3959 7581
3923 7578 3911 7611 3912 7613 3904 7631
TIME...MOT...LOC 1925Z 236DEG 33KT 3918 7631
$$
TFG1 follow-up statement
000
WWUS51 KPHI 281955
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
355 PM EDT MON APR 28 2008
MDC015-029-035-282030-
/O.CON.KPHI.SV.W.0021.000000T0000Z-080428T2030Z/
CECIL MD-KENT MD-QUEEN ANNES MD-
355 PM EDT MON APR 28 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHEASTERN QUEEN ANNES...KENT AND SOUTHEASTERN CECIL
COUNTIES...
AT 351 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CHESTERTOWN...OR 35
MILES WEST OF DOVER...MOVING EAST AT 28 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
CHESTERTOWN AND KINGSTOWN BY 400 PM EDT...
8 MILES SOUTH OF BETTERTON BY 410 PM EDT...
GALENA AND MILLINGTON BY 425 PM EDT...
6 MILES SOUTH OF CECILTON BY 430 PM EDT...
DOPPLER RADAR HAS INDICATED SOME WEAK ROTATION WITHIN THIS STORM.
WHILE NOT IMMEDIATELY LIKELY...A TORNADO MAY STILL DEVELOP. IF A
TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF SAFETY IN A
STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL INTERIOR ROOM.
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
LAT...LON 3937 7608 3937 7602 3938 7600 3938 7603
3940 7605 3949 7593 3949 7594 3959 7582
3951 7580 3923 7578 3922 7581 3916 7616
3928 7620
TIME...MOT...LOC 1955Z 248DEG 24KT 3923 7612
$$
TFGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 62 min |
| Apr 28, 4:19 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 56 min |
| Apr 28, 4:37 PM EDT | Tornado Warning | PHI | Caroline, Queen Anne's | 23 min |
| Apr 28, 5:22 PM EDT | Areal Flood Advisory | PHI | Cecil | 113 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.