Alert archive / Maryland / Special Weather Statements in 2017
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Jul 24, 2017, 11:10 PM EDT for Talbot County, Maryland. It was in force for 35 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 24, 2017, 11:10 PM EDT (03:10 UTC)
- Expired
- Jul 24, 2017, 11:45 PM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
County Talbot County, MD
The radar
The Dover AFB radar (KDOX), 72 km from the middle of the area, began a volume at 03:14 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 00:00Z, 3.2 hours before the alert went out and 98 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
- 1156 J/kg
- Mixed-layer CIN
- -30 J/kg
- Mixed-layer LCL
- 1330 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.0
The text
As transmitted.
016
WWUS81 KPHI 250310
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
1110 PM EDT MON JUL 24 2017
MDZ015-019-250345-
Queen Anne's-Talbot-
1110 PM EDT MON JUL 24 2017
...A LINE OF SHOWERS WILL AFFECT NORTHWESTERN TALBOT AND SOUTHWESTERN
QUEEN ANNE'S COUNTIES...
At 1109 PM EDT, radar indicated showers were located along a line
extending from 3 miles northwest of Stevensville to near Upper
Marlboro. Movement was east at 25 mph.
These showers will be near...
Stevensville and Chester around 1115 PM EDT.
Grasonville around 1125 PM EDT.
Talbot around 1145 PM EDT.
Other locations impacted by these showers include Dominion,
Stevensville South and Queenstown.
Brief downpours and winds up to 30 mph are possible with these
showers.
These showers may intensify into a thunderstorm. Thunderstorms
produce cloud to ground lightning, therefore move indoors
immediately if you hear thunder or see lightning from a distance.
LAT...LON 3902 7632 3897 7622 3901 7609 3874 7620
3875 7630 3878 7629 3876 7634 3885 7627
3879 7620 3879 7619 3894 7621 3897 7625
3894 7625 3893 7629 3890 7628 3896 7631
3884 7637 3885 7638
TIME...MOT...LOC 0309Z 268DEG 23KT 3900 7632 3883 7669
$$
JRKThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 24, 8:22 PM EDT | Special Weather Statement | PHI | Burlington, Mercer | 38 min |
| Jul 24, 8:28 PM EDT | Special Marine Warning | PHI | 92 min | |
| Jul 24, 8:59 PM EDT | Areal Flood Advisory | PHI | Camden, Gloucester, Salem | 2 hr |
| Jul 24, 9:01 PM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 59 min |
| Jul 24, 9:06 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 114 min |
| Jul 24, 10:01 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 119 min |
| Jul 24, 10:20 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 24, 10:38 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cumberland, Salem | 52 min |
| Jul 24, 10:58 PM EDT | Special Marine Warning | PHI | 92 min | |
| Jul 24, 11:30 PM EDT | Special Weather Statement | PHI | Cape May, Cumberland | 45 min |
| Jul 24, 11:47 PM EDT | Special Marine Warning | PHI | 118 min | |
| Jul 25, 12:40 AM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 25, 1:40 AM EDT | Special Marine Warning | PHI | 2 hr | |
| Jul 25, 3:14 AM EDT | Areal Flood Warning | PHI | Salem | 6 hr |
| Jul 25, 3:25 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean | 11 hr |
| Jul 24, 8:08 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 52 min |
| Jul 24, 8:19 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery, Philadelphia | 116 min |
| Jul 24, 9:44 PM EDT | Flash Flood Warning | PHI | Philadelphia | 4 hr |
| Jul 24, 11:11 PM EDT | Areal Flood Warning | PHI | Montgomery | 4 hr |
| Jul 24, 9:52 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 38 min |
| Jul 24, 10:02 PM EDT | Special Weather Statement | PHI | Cecil | 43 min |
| Jul 24, 10:06 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Cecil, Kent, Queen Anne's | 39 min |
| Jul 24, 10:50 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's | 40 min |
| Jul 24, 11:55 PM EDT | Areal Flood Advisory | PHI | Caroline, Queen Anne's | 2 hr |
| Jul 25, 12:34 AM EDT | Severe Thunderstorm Warning | PHI | Caroline | 41 min |
| Jul 25, 12:16 AM EDT | Special Weather Statement | PHI | Sussex | 44 min |
| Jul 25, 1:15 AM EDT | Special Weather Statement | PHI | Sussex | 45 min |
Nearby
Special Weather Statements in Maryland, 2017Every special weather statement in 2017
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.