Alert archive / Delaware / Severe Thunderstorm Warnings in 2022
Severe Thunderstorm Warning 122, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 12, 2022, 7:37 PM EDT for Caroline County, Maryland; Kent County, Sussex County, Delaware. It was in force for 23 min. 4 reports 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 12, 2022, 7:37 PM EDT (23:37 UTC)
- Expired
- Jul 12, 2022, 8:00 PM EDT
- In force
- 23 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Destructive
- Hail
- 1.0 in
- Wind
- 80.0 mph
Counties Kent County, DE, Sussex County, DE, Caroline County, MD
The radar
The Dover AFB radar (KDOX), 15 km from the middle of the area, began a volume at 23:36 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 12, 7:38 PM EDT | TSTM WND DMG | 2 W Andrewsville, DE | REPORT OF ROOF BLOWN OFF OF A HOUSE ALONG CATTAIL BRANCH ROAD. RADAR INDICATES THIS WAS FROM A MICROBURST WITH WINDS POTENTIALLY IN EXCESS OF 80 MPH. TIME ESTIMATED FROM RADAR. |
| Jul 12, 7:42 PM EDT | TSTM WND DMG | 1 Ese Andrewsville, DE | NUMEROUS TREES DOWN MAKING ANDREWVILLE ROAD IMPASSIBLE WEST OF FARMINGTON. TIME ESTIMATED FROM RADAR. |
| Jul 12, 7:44 PM EDT | TSTM WND DMG | 1 Nne Andrewsville, DE | REPORTS OF A STRUCTURE COLLAPSE AND ROOFS BLOWN OFF OF CHICKEN HOUSES ON PROSPECT CHURCH ROAD. TIME ESTIMATED VIA RADAR. |
| Jul 12, 7:44 PM EDT | TSTM WND DMG | 2 N Andrewsville, DE | SOCIAL MEDIA REPORT OF LARGE TREES UPROOTED AND MULTIPLE LARGE BRANCHES DOWN ON PROSPECT CHURCH ROAD. TIME ESTIMATED VIA RADAR. |
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 12, 5:05 PM EDT | Severe Thunderstorm Watch | SPC | 4 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 11.6 hours before the alert went out and 103 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 872 m above ground
- 0-6 km bulk shear
- 13 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
394
WUUS51 KPHI 122337
SVRPHI
DEC001-005-MDC011-130000-
/O.NEW.KPHI.SV.W.0122.220712T2337Z-220713T0000Z/
BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
737 PM EDT Tue Jul 12 2022
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Sussex County in southern Delaware...
Southern Kent County in central Delaware...
East central Caroline County in eastern Maryland...
* Until 800 PM EDT.
* At 736 PM EDT, a severe thunderstorm was located near Andrewsville,
or 17 miles northeast of Hurlock, moving east at 45 mph.
THIS IS A DESTRUCTIVE STORM FOR ANDREWSVILLE AND FARMINGTON.
HAZARD...80 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
* Locations impacted include...
Milford, Harrington, Ellendale, Andrewsville, Greenwood, Houston
and Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.
&&
LAT...LON 3880 7580 3893 7578 3896 7531 3870 7535
TIME...MOT...LOC 2336Z 274DEG 38KT 3885 7571
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Staarmann2 follow-up statements
428
WWUS51 KPHI 122342
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
742 PM EDT Tue Jul 12 2022
MDC011-122351-
/O.CAN.KPHI.SV.W.0122.000000T0000Z-220713T0000Z/
Caroline MD-
742 PM EDT Tue Jul 12 2022
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CAROLINE COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
central Delaware...and eastern Maryland.
LAT...LON 3878 7572 3893 7573 3896 7531 3870 7535
TIME...MOT...LOC 2341Z 270DEG 38KT 3887 7563
$$
DEC001-005-130000-
/O.CON.KPHI.SV.W.0122.000000T0000Z-220713T0000Z/
Sussex DE-Kent DE-
742 PM EDT Tue Jul 12 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHWESTERN SUSSEX AND SOUTHERN KENT COUNTIES...
At 741 PM EDT, a severe thunderstorm was located over Andrewsville,
or 18 miles northwest of Georgetown, moving east at 45 mph.
THIS IS A DESTRUCTIVE STORM FOR ANDREWSVILLE AND FARMINGTON.
HAZARD...80 mph wind gusts and ping pong ball size hail.
SOURCE...Radar indicated.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Milford, Harrington, Ellendale, Andrewsville, Greenwood, Houston and
Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.
This is a dangerous storm, capable of producing large hail driven by
severe winds! SEEK SHELTER NOW inside a sturdy structure and stay
away from windows! If you are caught outdoors, cover your head and
neck.
&&
LAT...LON 3878 7572 3893 7573 3896 7531 3870 7535
TIME...MOT...LOC 2341Z 270DEG 38KT 3887 7563
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH
$$
Staarmann773
WWUS51 KPHI 122347
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
747 PM EDT Tue Jul 12 2022
DEC001-005-130000-
/O.CON.KPHI.SV.W.0122.000000T0000Z-220713T0000Z/
Sussex DE-Kent DE-
747 PM EDT Tue Jul 12 2022
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR NORTHWESTERN SUSSEX AND SOUTHERN KENT COUNTIES...
At 746 PM EDT, a severe thunderstorm was located over Andrewsville,
or 16 miles northwest of Georgetown, moving east at 40 mph. This
storm has a history of producing significant wind damage near Denton.
THIS IS A DESTRUCTIVE STORM FOR ANDREWSVILLE AND FARMINGTON.
HAZARD...80 mph wind gusts and ping pong ball size hail.
SOURCE...Emergency management.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be heavily damaged. Expect
considerable damage to roofs, windows, and vehicles.
Extensive tree damage and power outages are likely.
Locations impacted include...
Milford, Harrington, Ellendale, Andrewsville, Greenwood, Houston and
Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
This is an EXTREMELY DANGEROUS SITUATION with tornado-like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.
This is a dangerous storm, capable of producing large hail driven by
severe winds! SEEK SHELTER NOW inside a sturdy structure and stay
away from windows! If you are caught outdoors, cover your head and
neck.
&&
LAT...LON 3879 7570 3893 7570 3896 7531 3870 7535
TIME...MOT...LOC 2346Z 273DEG 36KT 3887 7560
THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.50 IN
WIND THREAT...OBSERVED
MAX WIND GUST...80 MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 12, 6:36 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 39 min |
| Jul 12, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 48 min |
| Jul 12, 5:29 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 31 min |
| Jul 12, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 18 min |
| Jul 12, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 28 min |
| Jul 12, 7:56 PM EDT | Special Weather Statement | PHI | Sussex | 34 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2022Severe Thunderstorm Warnings in Maryland, 2022Every severe thunderstorm warning in 2022
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.