Alert archive / Maryland / Tornado Warnings in 1993

Tornado Warning 12, NWS Baltimore/Washington

September 27, 1993Baltimore County, Maryland

NWS Baltimore/Washington issued this tornado warning at Sep 27, 1993, 2:17 PM EDT for Baltimore County, Maryland. It was in force for 28 min.

The area

The counties it named.

The facts

Issued
Sep 27, 1993, 2:17 PM EDT (18:17 UTC)
Expired
Sep 27, 1993, 2:45 PM EDT
In force
28 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Baltimore County, MD

The radar

The Sterling radar (KLWX), 91 km from the middle of the area, began a volume at 18:17 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

Atlantic City In, NJ (KACY), launched 12:00Z, 6.3 hours before the alert went out and 182 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.

Skew-T log-pSkew-T log-p diagram, Atlantic City In, NJ at 12:00Z on 1993-09-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1090 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Atlantic City In, NJ at 12:00Z on 1993-09-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1090 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
834 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.9

Open this sounding in Storm Lab

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.

IssuedProductOfficeCountiesLasted
Sep 27, 11:43 AM EDTSevere Thunderstorm WarningLWXPage32 min
Sep 27, 11:56 AM EDTSevere Thunderstorm WarningLWXMadison34 min
Sep 27, 12:33 PM EDTSevere Thunderstorm WarningLWXCulpeper42 min
Sep 27, 12:40 PM EDTSevere Thunderstorm WarningLWXFauquier65 min
Sep 27, 12:51 PM EDTSevere Thunderstorm WarningLWXLoudoun, Prince William69 min
Sep 27, 1:02 PM EDTTornado WarningLWXPrince William28 min
Sep 27, 1:09 PM EDTTornado WarningLWXFairfax, Loudoun36 min
Sep 27, 1:37 PM EDTSevere Thunderstorm WarningLWXMontgomery38 min
Sep 27, 1:43 PM EDTSevere Thunderstorm WarningLWXPrince George's62 min
Sep 27, 2:01 PM EDTTornado WarningLWXAnne Arundel29 min

Nearby

Tornado Warnings in Maryland, 1993Every tornado warning in 1993Tornadoes in 1993

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.