Alert archive / Maryland / Special Weather Statements in 2012
Special Weather Statement, NWS Baltimore/Washington
NWS Baltimore/Washington issued this special weather statement at Sep 22, 2012, 3:25 PM EDT for Carroll County, Maryland. It was in force for 50 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
- Sep 22, 2012, 3:25 PM EDT (19:25 UTC)
- Expired
- Sep 22, 2012, 4:15 PM EDT
- In force
- 50 min
- Issued by
- NWS Baltimore/Washington
County Carroll County, MD
The radar
The Sterling radar (KLWX), 69 km from the middle of the area, began a volume at 19:26 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, 7.4 hours before the alert went out and 68 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
- 34 J/kg
- Mixed-layer CIN
- -233 J/kg
- Mixed-layer LCL
- 877 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 158 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 22, 6:43 AM EDT | Coastal Flood Advisory | LWX | Arlington, City of Alexandria, City of Falls Church | 7 hr |
| Sep 22, 5:25 PM EDT | Special Weather Statement | LWX | City of Fairfax | 35 min |
| Sep 22, 5:56 PM EDT | Special Weather Statement | LWX | City of Fairfax | 34 min |
| Sep 22, 5:59 PM EDT | Special Marine Warning | LWX | 61 min | |
| Sep 22, 6:06 PM EDT | Special Marine Warning | LWX | 54 min | |
| Sep 22, 6:30 PM EDT | Special Weather Statement | LWX | 30 min | |
| Sep 22, 7:06 PM EDT | Special Marine Warning | LWX | 54 min | |
| Sep 22, 7:18 PM EDT | Special Marine Warning | LWX | 57 min | |
| Sep 22, 3:09 PM EDT | Special Weather Statement | LWX | Frederick | 36 min |
| Sep 22, 4:07 PM EDT | Special Weather Statement | LWX | Carroll | 23 min |
| Sep 22, 4:29 PM EDT | Special Weather Statement | LWX | Frederick | 31 min |
| Sep 22, 4:59 PM EDT | Special Weather Statement | LWX | Harford | 31 min |
| Sep 22, 5:00 PM EDT | Special Weather Statement | LWX | Carroll | 30 min |
| Sep 22, 5:16 PM EDT | Special Weather Statement | LWX | Baltimore | 29 min |
| Sep 22, 5:17 PM EDT | Special Weather Statement | LWX | Montgomery | 28 min |
| Sep 22, 6:05 PM EDT | Special Weather Statement | LWX | Howard, City of Baltimore | 25 min |
Nearby
Special Weather Statements in Maryland, 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.