Alert archive / Delaware / Special Weather Statements in 2012
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jul 19, 2012, 2:39 PM EDT for New Castle County, Delaware. It was in force for 66 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
- Jul 19, 2012, 2:39 PM EDT (18:39 UTC)
- Expired
- Jul 19, 2012, 3:45 PM EDT
- In force
- 66 min
- Issued by
- NWS Philadelphia/Mount Holly
County New Castle County, DE
The radar
The Dover AFB radar (KDOX), 78 km from the middle of the area, began a volume at 18:42 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 nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.7 hours before the alert went out and 41 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
- 137 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1167 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 86 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
360
WWUS81 KPHI 191839
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
239 PM EDT THU JUL 19 2012
DEZ001-MDZ008-191945-
CECIL MD-NEW CASTLE DE-
239 PM EDT THU JUL 19 2012
...A STRONG THUNDERSTORM WILL AFFECT CECIL AND NEW CASTLE COUNTIES...
AT 237 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM ABOUT 7 MILES SOUTHEAST OF NEWARK...MOVING SOUTH
AT 10 MPH. THE THUNDERSTORM WILL BE NEAR BRANTWOOD...CHESAPEAKE CITY
AROUND 245 PM...SAINT GEORGES...DELAWARE CITY AROUND 300 PM...PORT
PENN...BOHEMIAS MILLS AROUND 315 PM...ODESSA...MIDDLETOWN AROUND 330
PM...CHAMBERSVILLE AND TOWNSEND AROUND 345 PM.
VERY HEAVY RAIN WILL FALL FROM THIS STORM...AND WILL CAUSE WATER TO
POND ON ROADS AND QUICKLY FILL POOR DRAINAGE AREAS.
WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THIS STORM.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. DO
NOT SEEK SHELTER UNDER TREES WHEN LIGHTNING THREATENS...MOVE INDOORS
WHEN A THUNDERSTORM APPROACHES.
LAT...LON 3972 7558 3967 7554 3962 7560 3960 7560
3963 7557 3963 7556 3952 7555 3946 7558
3942 7553 3937 7551 3935 7556 3931 7559
3930 7576 3938 7577 3939 7580 3962 7588
$$
MPDThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 18, 8:08 PM EDT | Special Weather Statement | PHI | Atlantic | 22 min |
| Jul 19, 3:04 PM EDT | Small Craft Advisory | PHI | 59 hr | |
| Jul 19, 3:10 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 50 min |
| Jul 19, 3:16 PM EDT | Special Marine Warning | PHI | 30 min | |
| Jul 19, 2:08 PM EDT | Areal Flood Advisory | PHI | New Castle | 112 min |
| Jul 19, 3:05 PM EDT | Areal Flood Advisory | PHI | New Castle | 62 min |
| Jul 19, 4:56 PM EDT | Special Weather Statement | PHI | Sussex | 64 min |
| Jul 19, 6:02 PM EDT | Special Weather Statement | PHI | Kent | 58 min |
| Jul 19, 7:08 PM EDT | Special Weather Statement | PHI | Queen Anne's | 52 min |
Nearby
Special Weather Statements in Delaware, 2012Every special weather statement in 2012
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.