Alert archive / Maryland / Special Weather Statements in 2016
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 21, 2016, 2:38 PM EDT for Cecil County, Maryland. It was in force for 22 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
- Aug 21, 2016, 2:38 PM EDT (18:38 UTC)
- Expired
- Aug 21, 2016, 3:00 PM EDT
- In force
- 22 min
- Issued by
- NWS Philadelphia/Mount Holly
County Cecil County, MD
The radar
The Dover AFB radar (KDOX), 93 km from the middle of the area, began a volume at 18:39 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 nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.6 hours before the alert went out and 133 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
- 310 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 719 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 54 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
358
WWUS81 KPHI 211838
SPSPHI
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
238 PM EDT SUN AUG 21 2016
MDZ008-012-PAZ101-102-211900-
CECIL-KENT-WESTERN CHESTER-EASTERN CHESTER-
238 PM EDT SUN AUG 21 2016
...A LINE OF SCATTERED STRONG THUNDERSTORMS WILL AFFECT NORTH CENTRAL
KENT...CECIL AND SOUTHWESTERN CHESTER COUNTIES...
AT 237 PM EDT...A LINE OF SCATTERED STRONG THUNDERSTORMS WAS ALONG A
LINE EXTENDING FROM NEAR ROCK SPRINGS TO NEAR HAVRE DE GRACE TO NEAR
BOWLEYS QUARTERS...AND MOVING EAST AT 35 MPH.
WIND GUSTS UP TO 30 MPH ARE POSSIBLE WITH THESE STORMS.
THESE STORMS WILL BE NEAR... RISING
SUN...RICHARDSMERE...WOODLAWN...WEST NOTTINGHAM...CONOWINGO
AND OCTORARO AROUND 240 PM EDT. GLEN ROY AND FARMINGTON AROUND
245 PM EDT.
CALVERT...OXFORD...CHARLESTOWN...LOMBARD...BAY VIEW AND ZION AROUND
250 PM EDT.
NORTH EAST...BLAKE...PLEASANT HILL AND HOLLYWOOD BEACH AROUND 255 PM
EDT.
ELKTON...BETTERTON...KEMBLESVILLE...FAIR HILL...APPLETON...ANDORA...GLEN
WESTOVER...BRANTWOOD...CHERRY HILL AND BARKSDALE AROUND 300 PM EDT.
OTHER LOCATIONS IMPACTED BY THESE STORMS INCLUDE PORT DEPOSIT...
CHESAPEAKE CITY AND PERRYVILLE.
TORRENTIAL RAINFALL IS ALSO OCCURRING WITH THESE STORMS...AND MAY
CAUSE LOCALIZED FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOODED
ROADWAYS.
FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH A COUPLE OF
THESE STORMS. LIGHTNING CAN STRIKE 15 MILES AWAY FROM A
THUNDERSTORM. SEEK A SAFE SHELTER INSIDE A BUILDING OR VEHICLE.
THESE STORMS MAY INTENSIFY...SO BE CERTAIN TO MONITOR LOCAL RADIO AND
TV STATIONS...AS WELL AS LOCAL CABLE TV OUTLETS...FOR ADDITIONAL
INFORMATION AND POSSIBLE WARNINGS FROM THE NATIONAL WEATHER SERVICE.
LAT...LON 3934 7614 3937 7611 3937 7606 3942 7600
3946 7601 3952 7598 3955 7603 3955 7608
3966 7617 3972 7615 3973 7610 3976 7608
3982 7579 3956 7579 3932 7591 3933 7617
TIME...MOT...LOC 1837Z 265DEG 31KT 3973 7612 3958 7613 3934 7633
$$
DRAGThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 1:36 PM EDT | Small Craft Advisory | PHI | 26 hr | |
| Aug 21, 3:47 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 118 min |
| Aug 21, 3:57 PM EDT | Special Marine Warning | PHI | 63 min | |
| Aug 21, 5:19 PM EDT | Special Marine Warning | PHI | 41 min | |
| Aug 21, 5:43 PM EDT | Special Weather Statement | PHI | Cape May, Cumberland | 47 min |
| Aug 21, 5:49 PM EDT | Special Marine Warning | PHI | 26 min | |
| Aug 21, 6:08 PM EDT | Special Weather Statement | PHI | Cape May | 37 min |
| Aug 21, 6:12 PM EDT | Special Marine Warning | PHI | 33 min | |
| Aug 21, 6:48 PM EDT | Special Marine Warning | PHI | 42 min | |
| Aug 21, 6:59 PM EDT | Special Weather Statement | PHI | Cape May | 16 min |
| Aug 21, 1:08 PM EDT | Special Weather Statement | PHI | Lebanon | 22 min |
| Aug 21, 1:26 PM EDT | Special Weather Statement | PHI | Berks | 64 min |
| Aug 21, 2:51 PM EDT | Areal Flood Advisory | PHI | Chester, Delaware, Montgomery | 114 min |
| Aug 21, 2:57 PM EDT | Special Weather Statement | PHI | Kent, Queen Anne's | 33 min |
| Aug 21, 3:30 PM EDT | Areal Flood Advisory | PHI | Caroline, Cecil, Kent, Queen Anne's | 2 hr |
| Aug 21, 3:40 PM EDT | Special Weather Statement | PHI | Talbot | 50 min |
| Aug 21, 3:50 PM EDT | Special Weather Statement | PHI | Kent | 25 min |
| Aug 21, 4:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 39 min |
| Aug 21, 4:19 PM EDT | Special Weather Statement | PHI | Talbot | 26 min |
| Aug 21, 4:20 PM EDT | Flash Flood Warning | PHI | Cecil, Kent, Queen Anne's | 4 hr |
| Aug 21, 4:29 PM EDT | Special Weather Statement | PHI | Caroline | 31 min |
| Aug 21, 4:50 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Aug 21, 4:54 PM EDT | Special Weather Statement | PHI | Caroline | 36 min |
| Aug 21, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline | 39 min |
| Aug 21, 5:09 PM EDT | Flash Flood Warning | PHI | Caroline, Queen Anne's, Talbot | 4 hr |
| Aug 21, 6:35 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's, Talbot | 3 hr |
| Aug 21, 5:28 PM EDT | Special Weather Statement | PHI | Kent | 17 min |
| Aug 21, 5:46 PM EDT | Special Weather Statement | PHI | Sussex | 14 min |
| Aug 21, 5:54 PM EDT | Special Weather Statement | PHI | Sussex | 36 min |
| Aug 21, 6:31 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Aug 21, 7:04 PM EDT | Special Weather Statement | PHI | Sussex | 26 min |
Nearby
Special Weather Statements in Maryland, 2016Every special weather statement in 2016
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.