Alert archive / Maryland / Flash Flood Warnings in 1996
Flash Flood Warning 147, NWS Baltimore/Washington
NWS Baltimore/Washington issued this flash flood warning at Aug 16, 1996, 2:56 PM EDT for Frederick County, Montgomery County, Maryland. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 16, 1996, 2:56 PM EDT (18:56 UTC)
- Expired
- Aug 16, 1996, 3:55 PM EDT
- In force
- 59 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties
Counties Frederick County, MD, Montgomery County, MD
The radar
The Sterling radar (KLWX), 40 km from the middle of the area, began a volume at 18:59 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, 6.9 hours before the alert went out and 40 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
- 346 J/kg
- Mixed-layer CIN
- -127 J/kg
- Mixed-layer LCL
- 1067 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 8 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 9:49 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 66 min |
| Aug 15, 9:58 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 47 min |
| Aug 16, 1:27 PM EDT | Severe Thunderstorm Warning | LWX | Shenandoah | 48 min |
| Aug 16, 2:10 PM EDT | Flash Flood Warning | LWX | Clarke, Loudoun | 60 min |
| Aug 16, 2:10 PM EDT | Severe Thunderstorm Warning | LWX | Clarke, Loudoun | 60 min |
| Aug 16, 3:02 PM EDT | Flash Flood Warning | LWX | Madison | 63 min |
| Aug 16, 3:02 PM EDT | Severe Thunderstorm Warning | LWX | Madison | 63 min |
| Aug 16, 3:05 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier | 65 min |
| Aug 16, 3:45 PM EDT | Severe Thunderstorm Warning | LWX | Culpeper | 50 min |
| Aug 16, 4:08 PM EDT | Severe Thunderstorm Warning | LWX | Fauquier, Loudoun, Prince William | 62 min |
| Aug 16, 4:23 PM EDT | Severe Thunderstorm Warning | LWX | Fairfax, Prince William | 47 min |
| Aug 16, 5:10 PM EDT | Tornado Warning | LWX | Arlington, City of Falls Church | 50 min |
| Aug 16, 5:47 PM EDT | Severe Thunderstorm Warning | LWX | King George | 28 min |
| Aug 16, 2:56 PM EDT | Severe Thunderstorm Warning | LWX | Frederick, Montgomery | 59 min |
| Aug 16, 3:41 PM EDT | Severe Thunderstorm Warning | LWX | Montgomery | 44 min |
| Aug 16, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Frederick | 63 min |
| Aug 16, 5:07 PM EDT | Severe Thunderstorm Warning | LWX | Anne Arundel | 48 min |
| Aug 16, 5:13 PM EDT | Severe Thunderstorm Warning | LWX | Carroll | 62 min |
| Aug 16, 5:25 PM EDT | Severe Thunderstorm Warning | LWX | Prince George's | 45 min |
| Aug 16, 5:39 PM EDT | Severe Thunderstorm Warning | LWX | Calvert | 46 min |
| Aug 16, 6:07 PM EDT | Severe Thunderstorm Warning | LWX | Charles, Saint Mary's | 33 min |
| Aug 15, 8:47 PM EDT | Severe Thunderstorm Warning | LWX | Hampshire | 63 min |
| Aug 16, 4:38 PM EDT | Severe Thunderstorm Warning | LWX | Jefferson | 67 min |
| Aug 16, 4:57 PM EDT | Severe Thunderstorm Warning | LWX | Hampshire | 63 min |
Nearby
Flash Flood Warnings in Maryland, 1996Every flash flood warning in 1996
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.