Alert archive / Delaware / Tornado Warnings in 2019

Tornado Warning 5, NWS Philadelphia/Mount Holly

April 15, 2019Kent County, Sussex County, Delaware; Caroline County, Maryland

NWS Philadelphia/Mount Holly issued this tornado warning at Apr 15, 2019, 3:36 AM EDT for Kent County, Sussex County, Delaware; Caroline County, Maryland. It was in force for 24 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: Apr 15, 2019, 3:36 AM EDT (07:36 UTC)
Expired: Apr 15, 2019, 4:00 AM EDT
In force: 24 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Kent County, DE, Sussex County, DE, Caroline County, MD

The radar

The Dover AFB radar (KDOX), 21 km from the middle of the area, began a volume at 07:39 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
Apr 15, 1:05 AM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.6 hours before the alert went out and 92 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: 124 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 806 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 196 m²/s²
0-3 km storm-relative helicity: 209 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.1

Open this sounding in Storm Lab

The text

As transmitted.

312 
WFUS51 KPHI 150736
TORPHI
DEC001-005-MDC011-150800-
/O.NEW.KPHI.TO.W.0005.190415T0736Z-190415T0800Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
336 AM EDT MON APR 15 2019

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  Northwestern Sussex County in southern Delaware...
  South central Kent County in central Delaware...
  Southeastern Caroline County in eastern Maryland...

* Until 400 AM EDT.
    
* At 335 AM EDT, a severe thunderstorm capable of producing a tornado
  was located over Federalsburg, or 7 miles northeast of Hurlock,
  moving northeast at 50 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Milford, Harrington, Federalsburg, Bridgeville, Andrewsville,
  Greenwood, Houston and Farmington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3865 7571 3869 7577 3868 7579 3897 7556
      3887 7536 3864 7571
TIME...MOT...LOC 0735Z 222DEG 42KT 3867 7574 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MPS

1 follow-up statement

718 
WWUS51 KPHI 150757
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
357 AM EDT MON APR 15 2019

DEC001-005-MDC011-150806-
/O.EXP.KPHI.TO.W.0005.000000T0000Z-190415T0800Z/
Sussex DE-Kent DE-Caroline MD-
357 AM EDT MON APR 15 2019

...THE TORNADO WARNING FOR NORTHWESTERN SUSSEX...SOUTH CENTRAL KENT
AND SOUTHEASTERN CAROLINE COUNTIES WILL EXPIRE AT 400 AM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds and heavy rain are still
possible with this thunderstorm.

A tornado watch remains in effect until 700 AM EDT for central and
southern Delaware...and eastern Maryland.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
in Mount Holly NJ.

Remember, a Severe Thunderstorm Warning still remains in effect for
Sussex county until 4:15 am.

LAT...LON 3865 7571 3869 7577 3868 7579 3897 7556
      3887 7536 3864 7571
TIME...MOT...LOC 0756Z 222DEG 42KT 3885 7553 

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 15, 2:46 AM EDT	Severe Thunderstorm Warning	PHI	New Castle	44 min
Apr 15, 3:07 AM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	38 min
Apr 15, 3:19 AM EDT	Tornado Warning	PHI	New Castle	26 min
Apr 15, 3:19 AM EDT	Wind Advisory	PHI	Kent, New Castle, Sussex	18 hr
Apr 15, 3:21 AM EDT	Tornado Warning	PHI	Kent	24 min
Apr 15, 3:28 AM EDT	Severe Thunderstorm Warning	PHI	Sussex	47 min
Apr 15, 3:31 AM EDT	Tornado Warning	PHI	Sussex	29 min
Apr 15, 3:41 AM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	64 min
Apr 15, 3:59 AM EDT	Areal Flood Advisory	PHI	Kent, Sussex	4 hr
Apr 15, 4:19 AM EDT	Special Weather Statement	PHI	Sussex	26 min
Apr 15, 2:15 AM EDT	Severe Thunderstorm Warning	PHI	Cecil, Kent	45 min
Apr 15, 2:25 AM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	50 min
Apr 15, 2:43 AM EDT	Tornado Warning	PHI	Caroline, Kent, Queen Anne's	32 min

Nearby

Tornado Warnings in Delaware, 2019 Tornado Warnings in Maryland, 2019 Every tornado warning in 2019 Tornadoes in 2019

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.