Alert archive / Delaware / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 59, NWS Philadelphia/Mount Holly

May 22, 2022Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 22, 2022, 9:14 PM EDT for Kent County, Sussex County, Delaware. It was in force for 26 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: May 22, 2022, 9:14 PM EDT (01:14 UTC)
Expired: May 22, 2022, 9:40 PM EDT
In force: 26 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kent County, DE, Sussex County, DE

The radar

The Dover AFB radar (KDOX), 10 km from the middle of the area, began a volume at 01:17 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
May 22, 9:15 PM EDT	TSTM WND DMG	Harrington, DE	CORRECTS TIME OF PREVIOUS TSTM WND DMG REPORT FROM HARRINGTON. COUNTY RECEIVED A COUPLE OF CALLS FOR DOWNED TREES AND WIRES IN THE HARRINGTON AREA. TIME ESTIMATED FROM RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 1.2 hours before the alert went out and 108 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1289 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 1265 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 32 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

705 
WUUS51 KPHI 230114
SVRPHI
DEC001-005-230200-
/O.NEW.KPHI.SV.W.0059.220523T0114Z-220523T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
914 PM EDT Sun May 22 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...

* Until 1000 PM EDT.

* At 914 PM EDT, a severe thunderstorm was located over Harrington,
  or 16 miles northwest of Georgetown, moving east at 30 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Dover, Milford, Harrington, Ellendale, Bowers, Big Stone Beach,
  Andrewsville, Felton, Greenwood, Frederica, Houston, Magnolia,
  Farmington, Riverview and Woodside East.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

In addition to damaging winds, frequent cloud to ground lightning is 
occurring with this storm. Move indoors immediately. Remember, if 
you can hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3878 7564 3895 7570 3915 7540 3883 7518
TIME...MOT...LOC 0114Z 249DEG 25KT 3890 7554 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

2 follow-up statements

034 
WWUS51 KPHI 230126
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
926 PM EDT Sun May 22 2022

DEC001-005-230200-
/O.CON.KPHI.SV.W.0059.000000T0000Z-220523T0200Z/
Sussex DE-Kent DE-
926 PM EDT Sun May 22 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM EDT
FOR NORTHWESTERN SUSSEX AND SOUTHERN KENT COUNTIES...

At 926 PM EDT, a severe thunderstorm was located over Milford, or 16
miles north of Georgetown, moving northeast at 20 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Dover, Milford, Harrington, Ellendale, Bowers, Viola, Big Stone
Beach, Felton, Frederica, Houston, Magnolia, Farmington, Riverview
and Woodside East.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 3898 7566 3915 7540 3883 7518 3881 7536
      3879 7556
TIME...MOT...LOC 0126Z 246DEG 19KT 3891 7548 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

381 
WWUS51 KPHI 230140
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
940 PM EDT Sun May 22 2022

DEC001-005-230150-
/O.CAN.KPHI.SV.W.0059.000000T0000Z-220523T0200Z/
Sussex DE-Kent DE-
940 PM EDT Sun May 22 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN SUSSEX AND
SOUTHERN KENT COUNTIES IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3898 7566 3915 7540 3883 7518 3881 7536
      3879 7556
TIME...MOT...LOC 0138Z 249DEG 25KT 3894 7536 

$$

Gorse

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 8:51 PM EDT	Severe Thunderstorm Warning	PHI	Kent	24 min
May 22, 9:46 PM EDT	Special Weather Statement	PHI	Sussex	44 min

Nearby

Severe Thunderstorm Warnings in Delaware, 2022 Every 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.