Alert archive / Maryland / Severe Thunderstorm Warnings in 2000
Severe Thunderstorm Warning 8, NWS Baltimore/Washington
NWS Baltimore/Washington issued this severe thunderstorm warning at Mar 25, 2000, 4:59 PM EST for Anne Arundel County, Calvert County, Prince George's County, Maryland. It was in force for 31 min. 1 report came from inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.
The facts
- Issued
- Mar 25, 2000, 4:59 PM EST (21:59 UTC)
- Expired
- Mar 25, 2000, 5:30 PM EST
- In force
- 31 min
- Issued by
- NWS Baltimore/Washington
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
Counties Anne Arundel County, MD, Calvert County, MD, Prince George's County, MD
The radar
The Sterling radar (KLWX), 72 km from the middle of the area, began a volume at 22:01 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 25, 5:10 PM EST | Thunderstorm Wind | Brandywine, MD | Two trees were downed. |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.0 hours before the alert went out and 64 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1348 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 157 m²/s²
- 0-3 km storm-relative helicity
- 160 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KLWX 252200 SVRWBC MDC003-009-033-252230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON 459 PM EST SAT MAR 25 2000 THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EXTREME SOUTHERN ANNE ARUNDEL COUNTY IN CENTRAL MARYLAND PRINCE GEORGES COUNTY IN CENTRAL MARYLAND NORTHERN CALVERT COUNTY IN SOUTHERN MARYLAND * UNTIL 530 PM EST * AT 459 PM EST...A SEVERE THUNDERSTORM WAS INDICATED OVER CLINTON...MOVING EAST AT 42 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... DUNKIRK AT 512 PM EST OWINGS AT 516 PM EST DEALE...NORTH BEACH AT 522 PM EST SEEK SAFETY INDOORS AWAY FROM WINDOWS. IF CAUGHT OUTSIDE...DO NOT STAND UNDERNEATH TREES OR OTHER ISOLATED OBJECTS. DO NOT DRIVE INTO AREAS WHERE WATER COVERS THE ROAD. AS THE STORM APPROACHES MOVE TO A PLACE OF SAFETY. TUNE INTO NOAAW WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR THE LATEST WEATHER INFORMATION. .END/ DMW LAT...LON 3884 7696 3866 7695 3864 7630 3887 7631
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 Mar 25, 2:15 PM EST, 2 hours 44 minutes earlier.
Area forecast discussion, Mar 25, 2:15 PM EST, 2 hours 44 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON 215 PM EST SAT MAR 25 2000 12Z MODEL GUIDNC FCSTS WK CDFNT ACRS THE CWA OVRNGT ACCOMPANIED BY SOME CONV ACTVTY WHICH HAS ALREADY BEGUN TO DVLP MAINLY OVR THE NRN SHENANDOAH VLY THE PAST HR. MESO FIELDS INDICATE THIS ACTVTY WILL BE MVG E INTO A FAVORABLE AREA ALONG AND E OF THE BLUE RDG FOR POTENTIAL FURTHER DVLPMNT AS THE AFTN MVS ON. HENCE THESE SHWRS MAY WELL BCM TSTMS AND WILL HAVE A RMNDR OF THE AFTN PD IN THE NEW FCST PKG TO REFLECT THIS PSBLTY. OTW STG S/W WILL DRIVE CDFNT ACRS THE CWA ELY TNGT FOLLOWED BY PARTIAL CLRG. SUN APPEARS BRZY/WNDY AND SUNNY WITH TEMPS A LTL COOLER THAN TDA BUT STILL ABV NORMAL. WK HI PRES AND CLR SKIES FOR SUN NGT. INCRSG CLDS FOLLOWED BY SHWRS OR RN DVLPG SLOLY FM W TO E ACRS THE CWA DURING THE DAY MON. THIS SYSTEM SFC AND ALOFT WILL BE MUCH STRGR SO WILL GO WITH A RN LKLY SCENARIO FOR MON NGT. AS THE STORM SYSTEM WINDS UP OVR NEW ENG AND VCNTY MON LOOK FOR A PC WNDY AND MUCH COOLER DAY TUE TO BEGIN THE XTNDD PERIOD. THATS IT FOR NOW...LATER. .LWX...NONE. PAP
The office that day
Everything else NWS Baltimore/Washington issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 4:49 PM EST | Severe Thunderstorm Warning | LWX | Charles | 26 min |
| Mar 25, 5:15 PM EST | Severe Thunderstorm Warning | LWX | Charles | 45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.