Alert archive / Maryland / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 155, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 23, 2008, 6:11 PM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland; Kent County, Delaware. It was in force for 64 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
- Jul 23, 2008, 6:11 PM EDT (22:11 UTC)
- Expired
- Jul 23, 2008, 7:15 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, Caroline County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 49 km from the middle of the area, began a volume at 22:15 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 |
|---|---|---|---|
| Jul 23, 6:47 PM EDT | TSTM WND DMG | Ridgely, MD | TREES DOWN |
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 |
|---|---|---|---|
| Jul 23, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 10.2 hours before the alert went out and 86 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
- 1012 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- -0.4
- Supercell composite
- -7.5
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS51 KPHI 232211
SVRPHI
DEC001-MDC011-035-041-232315-
/O.NEW.KPHI.SV.W.0155.080723T2211Z-080723T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
611 PM EDT WED JUL 23 2008
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHWESTERN KENT COUNTY IN CENTRAL DELAWARE...
CAROLINE COUNTY IN EASTERN MARYLAND...
EASTERN TALBOT COUNTY IN EASTERN MARYLAND...
EASTERN QUEEN ANNES COUNTY IN NORTHEAST MARYLAND...
* UNTIL 715 PM EDT
* AT 610 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR
TRAPPE...AND MOVING NORTHEAST AT 35 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
WINDYHILL...HAMBLETON AND CHOPTANK BY 620 PM...
TANYARD...PRESTON AND EASTON BY 625 PM...
HARMONY BY 630 PM...
MATTHEWS AND CORDOVA BY 635 PM...
GRIFFIN BY 640 PM...
IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM WEDNESDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
SOUTHEAST PENNSYLVANIA.
LAT...LON 3861 7609 3861 7611 3863 7612 3864 7616
3866 7617 3922 7591 3908 7551 3869 7584
3869 7589 3867 7592 3867 7595 3860 7598
3857 7601 3857 7603
TIME...MOT...LOC 2211Z 204DEG 38KT 3860 7606
$$
IOVINO1 follow-up statement
000
WWUS51 KPHI 232257
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
655 PM EDT WED JUL 23 2008
MDC035-041-232305-
/O.CAN.KPHI.SV.W.0155.000000T0000Z-080723T2315Z/
QUEEN ANNES MD-TALBOT MD-
655 PM EDT WED JUL 23 2008
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TALBOT AND EASTERN
QUEEN ANNES COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM HAS MOVED TO THE EAST OF TALBOT COUNTY AND
QUEEN ANNES COUNTY. AS A RESULT...THE SEVERE THUNDERSTORM WARNING
HAS BEEN CANCELLED FOR THE TWO COUNTIES.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.
LAT...LON 3912 7583 3914 7580 3914 7577 3913 7576
3916 7576 3917 7575 3908 7551 3883 7573
3892 7595
TIME...MOT...LOC 2255Z 204DEG 38KT 3902 7582
$$
DEC001-MDC011-232315-
/O.CON.KPHI.SV.W.0155.000000T0000Z-080723T2315Z/
KENT DE-CAROLINE MD-
655 PM EDT WED JUL 23 2008
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR NORTHERN CAROLINE AND SOUTHWESTERN KENT COUNTIES...
AT 655 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR GREENSBORO...MOVING NORTHEAST AT 35 MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
HENDERSON AND SANDTOWN BY 700 PM EDT...
TEMPLEVILLE AND MARYDEL BY 705 PM EDT...
HAZLETTVILLE BY 710 PM EDT...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND SOUTHEAST PENNSYLVANIA.
LAT...LON 3912 7583 3914 7580 3914 7577 3913 7576
3916 7576 3917 7575 3908 7551 3883 7573
3892 7595
TIME...MOT...LOC 2255Z 204DEG 38KT 3902 7582
$$
IOVINOThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 12:30 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 45 min |
| Jul 23, 1:11 AM EDT | Severe Thunderstorm Warning | PHI | Cecil | 64 min |
| Jul 23, 3:51 AM EDT | Flash Flood Watch | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 25 hr |
| Jul 23, 7:14 PM EDT | Severe Thunderstorm Warning | PHI | Cecil, Kent, Queen Anne's | 61 min |
| Jul 23, 3:30 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 60 min |
| Jul 23, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 38 min |
| Jul 23, 7:00 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 60 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.