Alert archive / Maryland / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 138, NWS Baltimore/Washington

June 26, 2000Anne Arundel County, Howard County, Prince George's County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 26, 2000, 12:56 AM EDT for Anne Arundel County, Howard County, Prince George's County, Maryland. It was in force for 64 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
Jun 26, 2000, 12:56 AM EDT (04:56 UTC)
Expired
Jun 26, 2000, 2:00 AM EDT
In force
64 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Anne Arundel County, MD, Howard County, MD, Prince George's County, MD

The radar

The Sterling radar (KLWX), 61 km from the middle of the area, began a volume at 04:58 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, 4.9 hours before the alert went out and 54 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, Washington/Dulle, VA at 00:00Z on 2000-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1430 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Washington/Dulle, VA at 00:00Z on 2000-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 119 square meters per square second.1939587897117136156175194214Sfc1 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
1430 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
1292 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
119 m²/s²
0-3 km storm-relative helicity
167 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Baltimore/Washington wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 25, 9:07 PM EDT, 3 hours 49 minutes earlier.

Area forecast discussion, Jun 25, 9:07 PM EDT, 3 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
907 PM EDT SUN JUN 25 2000

LN OF TSTMS HIT INSTAB AXIS AND HV FLARED UP OVR DC/CNTRL MD. PER 18Z
ETA...VORT STRNG OVNGT...AND SEE NO RSN WHY SHRA/TSTMS WONT CONT
INTO THE BAY. ONLY NEG IS DIURNAL...SO RISK OF MGRNL SVR LSSNS
W/TIME. NOT MUCH CHG TO GOING FCST XCPT TO BUMP UP POPS AHD OF LN.

HV DOUBTS ABT LACK OF HEAT ADVSRY TMRW...BUT HVNT HAD SUFFICIENT
TIME TO7 ANALYZE IT. THUS...WL LV THIS TO THE NXT CREW TO HNDL.

WL HOLD ONTO ZNS TIL 10PM.

.LWX...
DC...NONE.
MD...NONE.
VA...NONE.
WV...NONE.

HTS

The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 25, 8:52 PM EDTSevere Thunderstorm WarningLWXFairfax38 min
Jun 25, 11:48 PM EDTFlash Flood WarningLWXFauquier, Loudoun117 min
Jun 26, 2:34 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville41 min
Jun 26, 2:34 PM EDTSevere Thunderstorm WarningLWXOrange41 min
Jun 26, 3:17 PM EDTSevere Thunderstorm WarningLWXFauquier, Prince William, City of Manassas, City of Manassas Park43 min
Jun 26, 3:59 PM EDTSevere Thunderstorm WarningLWXSpotsylvania, Stafford, City of Fredericksburg31 min
Jun 26, 4:08 PM EDTSevere Thunderstorm WarningLWXNelson52 min
Jun 26, 4:18 PM EDTSevere Thunderstorm WarningLWXFauquier, Loudoun42 min
Jun 26, 4:30 PM EDTSevere Thunderstorm WarningLWXSpotsylvania, Stafford, City of Fredericksburg45 min
Jun 26, 4:30 PM EDTSevere Thunderstorm WarningLWXKing George45 min
Jun 26, 5:02 PM EDTSevere Thunderstorm WarningLWXLoudoun43 min
Jun 26, 6:33 PM EDTSevere Thunderstorm WarningLWXFrederick, City of Winchester57 min
Jun 26, 6:33 PM EDTSevere Thunderstorm WarningLWXClarke57 min
Jun 26, 6:53 PM EDTSevere Thunderstorm WarningLWXFauquier, Loudoun52 min
Jun 25, 9:02 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick58 min
Jun 25, 9:48 PM EDTSevere Thunderstorm WarningLWXBaltimore42 min
Jun 26, 1:11 AM EDTSevere Thunderstorm WarningLWXBaltimore, City of Baltimore49 min
Jun 26, 3:52 PM EDTSevere Thunderstorm WarningLWXHoward, Montgomery38 min
Jun 26, 4:24 PM EDTSevere Thunderstorm WarningLWXBaltimore, Harford51 min
Jun 26, 4:30 PM EDTSevere Thunderstorm WarningLWXCharles45 min
Jun 26, 4:46 PM EDTFlash Flood WarningLWXHoward, Montgomery59 min
Jun 26, 5:40 PM EDTFlash Flood WarningLWXMontgomery65 min
Jun 26, 6:17 PM EDTSevere Thunderstorm WarningLWXCalvert, Saint Mary's43 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2000Every severe thunderstorm warning in 2000

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.