Alert archive / Maryland / Severe Thunderstorm Warnings in 2010
Severe Thunderstorm Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 14, 2010, 8:49 PM EDT for Caroline County, Queen Anne's County, Talbot County, Maryland; Kent County, Sussex County, Delaware. It was in force for 56 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
- May 14, 2010, 8:49 PM EDT (00:49 UTC)
- Expired
- May 14, 2010, 9:45 PM EDT
- In force
- 56 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Kent County, DE, Sussex County, DE, Caroline County, MD, Queen Anne's County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 55 km from the middle of the area, began a volume at 00:50 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 |
|---|---|---|---|
| May 14, 3:43 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 0.8 hours before the alert went out and 111 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
- 825 J/kg
- Mixed-layer CIN
- -152 J/kg
- Mixed-layer LCL
- 1318 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 208 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.7
The text
As transmitted, in the capitals the NWS used until 2016.
556
WUUS51 KPHI 150049
SVRPHI
DEC001-005-MDC011-035-041-150145-
/O.NEW.KPHI.SV.W.0032.100515T0049Z-100515T0145Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
849 PM EDT FRI MAY 14 2010
THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
SOUTHERN KENT COUNTY IN CENTRAL DELAWARE...
CAROLINE COUNTY IN EASTERN MARYLAND...
TALBOT COUNTY IN EASTERN MARYLAND...
THIS INCLUDES THE CITY OF EASTON...
SOUTHWESTERN QUEEN ANNE'S COUNTY IN NORTHEAST MARYLAND...
NORTHWESTERN SUSSEX COUNTY IN SOUTHERN DELAWARE...
THIS INCLUDES THE CITY OF GEORGETOWN...
* UNTIL 945 PM EDT
* AT 846 PM EDT...NATIONAL WEATHER SERVICE 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
TALBOT...OR 13 MILES WEST OF EASTON...AND MOVING EAST AT 45 MPH.
* THE SEVERE THUNDERSTORM WILL BE NEAR...
COPPERVILLE AND ST. MICHAELS AROUND 855 PM EDT...
EASTON AROUND 905 PM EDT...
MATTHEWS AND TANYARD AROUND 910 PM EDT...
MATTHEWS...GRIFFIN AND PRESTON AROUND 915 PM EDT...
HARMONY AROUND 920 PM EDT...
AGNER AROUND 925 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.
&&
LAT...LON 3863 7572 3869 7583 3869 7590 3865 7596
3866 7622 3873 7625 3867 7636 3875 7636
3887 7625 3882 7621 3883 7620 3894 7624
3890 7624 3893 7628 3886 7634 3886 7635
3899 7632 3892 7531 3861 7533
TIME...MOT...LOC 0049Z 276DEG 37KT 3882 7626
$$
HAYES1 follow-up statement
716
WWUS51 KPHI 150128
SVSPHI
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
928 PM EDT FRI MAY 14 2010
DEC001-005-MDC011-035-041-150145-
/O.CON.KPHI.SV.W.0032.000000T0000Z-100515T0145Z/
KENT DE-CAROLINE MD-QUEEN ANNE'S MD-TALBOT MD-SUSSEX DE-
928 PM EDT FRI MAY 14 2010
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM EDT
FOR NORTHWESTERN SUSSEX...TALBOT...SOUTHWESTERN QUEEN ANNE'S...
CAROLINE AND SOUTHERN KENT COUNTIES...
AT 924 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS
LOCATED NEAR HARMONY...OR 8 MILES EAST OF EASTON...MOVING EAST AT 35
MPH.
THE SEVERE THUNDERSTORM WILL BE NEAR...
8 MILES SOUTH OF DENTON BY 935 PM EDT...
AGNER AND FEDERALSBURG BY 940 PM EDT...
SMITHVILLE...7 MILES WEST OF BRIDGEVILLE...9 MILES SOUTHWEST OF
GREENWOOD AND 9 MILES SOUTHWEST OF ANDREWSVILLE BY 945 PM EDT...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
FRIDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY
AND EASTERN PENNSYLVANIA.
&&
LAT...LON 3863 7572 3869 7583 3869 7590 3865 7596
3866 7622 3873 7625 3867 7636 3875 7636
3887 7625 3882 7621 3883 7620 3894 7624
3890 7624 3893 7628 3886 7634 3886 7635
3899 7632 3892 7531 3861 7533
TIME...MOT...LOC 0127Z 274DEG 25KT 3877 7590
$$
HAYESThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 14, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 56 min |
| May 14, 9:45 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Talbot | 60 min |
| May 14, 9:05 PM EDT | Special Weather Statement | PHI | New Castle | 55 min |
| May 14, 9:06 PM EDT | Special Weather Statement | PHI | New Castle | 54 min |
| May 14, 9:57 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 48 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2010Severe Thunderstorm Warnings in Delaware, 2010Every severe thunderstorm warning in 2010
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.