Alert archive / Delaware / Special Weather Statements in 2011
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Oct 20, 2011, 12:09 AM EDT for Cumberland County, New Jersey; Kent County, Sussex 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
- Oct 20, 2011, 12:09 AM EDT (04:09 UTC)
- Expired
- Oct 20, 2011, 1:15 AM EDT
- In force
- 66 min
- Issued by
- NWS Philadelphia/Mount Holly
Counties Kent County, DE, Sussex County, DE, Cumberland County, NJ
The radar
The Dover AFB radar (KDOX), 21 km from the middle of the area, began a volume at 04:08 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
Wallops Is Stn, VA (KWAL), launched 00:00Z, 4.2 hours before the alert went out and 119 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
- 96 J/kg
- Mixed-layer CIN
- -166 J/kg
- Mixed-layer LCL
- 617 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 172 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
754
WWUS81 KPHI 200409
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1209 AM EDT THU OCT 20 2011
DEZ002-003-NJZ021-200515-
CUMBERLAND NJ-INLAND SUSSEX DE-KENT DE-
1209 AM EDT THU OCT 20 2011
...SHOWERS WITH STRONG WIND GUSTS WILL AFFECT KENT...CUMBERLAND AND
SUSSEX COUNTIES...
AT 1202 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SHOWERS WITH STRONG WIND GUSTS ALONG A LINE EXTENDING FROM 14 MILES
NORTHWEST OF SALISBURY TO 11 MILES WEST OF SALISBURY TO 16 MILES
SOUTHWEST OF SALISBURY...MOVING NORTHEAST AT 50 MPH. THE SHOWERS WILL
BE NEAR BRIDGEVILLE...SEAFORD AROUND 1220 AM...GREENWOOD...BLADES...
BETHEL AROUND 1225 AM...FARMINGTON...ANDREWSVILLE...LAUREL AROUND
1230 AM...HARRINGTON AROUND 1235 AM AND HOUSTON AROUND 1240 AM.
BRIEF BUT VERY HEAVY RAIN WILL FALL FROM THESE SHOWERS...AND WILL
CAUSE WATER TO POND ON ROADS.
SOUTHERLY WIND GUSTS TO 40 MPH ARE POSSIBLE WITH THESE SHOWERS.
LAT...LON 3846 7570 3861 7572 3907 7562 3943 7516
3920 7504 3917 7514 3920 7519 3923 7518
3929 7527 3929 7531 3923 7539 3916 7540
3907 7539 3898 7529 3893 7530 3880 7516
3845 7547
$$
FORECASTER: DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 19, 9:56 PM EDT | Special Weather Statement | PHI | Warren | 49 min |
| Oct 19, 10:26 PM EDT | Special Weather Statement | PHI | Mercer, Middlesex, Monmouth, Morris, Somerset | 64 min |
| Oct 19, 11:48 PM EDT | Special Weather Statement | PHI | Sussex | 12 min |
| Oct 20, 2:41 AM EDT | Gale Warning | PHI | 13 hr | |
| Oct 20, 4:22 AM EDT | Coastal Flood Statement | PHI | Burlington, Camden, Gloucester, Salem | 4 hr |
| Oct 20, 2:11 AM EDT | Coastal Flood Advisory | PHI | Cecil, Kent, Queen Anne's | 3 hr |
| Oct 20, 8:25 AM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 9 hr |
| Oct 20, 5:09 PM EDT | Coastal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's, Talbot | 3 hr |
| Oct 19, 11:30 PM EDT | Special Weather Statement | PHI | Sussex | 90 min |
Nearby
Special Weather Statements in Delaware, 2011Special Weather Statements in New Jersey, 2011Every special weather statement in 2011
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.