Alert archive / Maryland / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 33, NWS Baltimore/Washington

May 25, 2001Charles County, Maryland

NWS Baltimore/Washington issued this severe thunderstorm warning at May 25, 2001, 2:56 PM EDT for Charles County, Maryland. It was in force for 49 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
May 25, 2001, 2:56 PM EDT (18:56 UTC)
Expired
May 25, 2001, 3:45 PM EDT
In force
49 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Charles County, MD

The radar

The Sterling radar (KLWX), 69 km from the middle of the area, began a volume at 18:58 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 12:00Z, 6.9 hours before the alert went out and 63 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 12:00Z on 2001-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Washington/Dulle, VA at 12:00Z on 2001-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 105 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
674 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
105 m²/s²
0-3 km storm-relative helicity
161 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 May 25, 10:10 AM EDT, 4 hours 46 minutes earlier.

Area forecast discussion, May 25, 10:10 AM EDT, 4 hours 46 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
1010 AM EDT FRI MAY 25 2001

ERLY MRNG FCST PCKG LUKS IN GUD SHAPE. SEEMS TO BE SOME SIMILARITY
BTWN THIS MRNGS WX MAP AND WHAT WE HAD THREE DAYS AGO...WHEN SVR
WX HIT A LARGE PART OF THE AREA TUE AFTN. LOW CONTS TO SPIN OVR THE
UPR MIDWEST WITH A FNTL BNDRY STRETCHING FM ERN OH DOWN TOWARDS THE
FL PANHANDLE AND LTNG OVR THE CAROLINAS. ONE DIFF ATTM IS A LTL MORE
CLD CVR EVIDENT ON STLT TO THE SW OF DC WHICH COULD HELP TO KEEP SFC
TEMPS DOWN..BUT LIKE THREE DAYS AGO THERE ARE GOOD UPR DYNAMICS.
WRDG OF PSBL SVR IN THE LATE AFTN WL RMN IN THE FCST. RMDR OF FCST
UNCHGD.

DCA   75  60  76  59 /  70  80  70  40
BWI   73  58  74  58 /  70  80  80  40
MRB   71  57  72  57 /  90  70  70  30
IAD   74  58  75  57 /  70  80  70  40
CHO   73  58  75  57 /  70  80  70  40
HGR   68  56  71  55 /  90  70  70  30
NHK   74  61  77  61 /  40  60  60  40

.LWX...NONE.

WOODY

In the hours before

Special weather statement, May 25, 11:34 AM EDT, 3 hours 22 minutes before
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042-
050>057-WVZ048>055-252130-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
1134 AM EDT FRI MAY 25 2001

...SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND EVENING...

THE STORM PREDICTION CENTER HAS OUTLOOKED MUCH OF VIRGINIA...
MARYLAND..THE EASTERN PANHANDLE OF WEST VIRGINIA..AND WASHINGTON DC
WITH A SLIGHT RISK OF SEVERE THUNDERSTORMS.

MOIST...UNSTABLE AIR AHEAD OF A COLD FRONT WILL TRIGGER STRONG
THUNDERSTORMS THIS AFTERNOON ACROSS THE AREA. THUNDERSTORMS WILL
DEVELOP OVER THE MOUNTAINS AND SPREAD EASTWARD LATE IN THE DAY. THE
THUNDERSTORMS ARE EXPECTED CONTINUE AFTER SUNSET...ESPECIALLY IN THE
WASHINGTON-BALTIMORE METROPOLITAN AREA. STRONG WIND GUSTS...IN
EXCESS OF 60 MPH...WILL BE THE MAJOR THREAT.  HAIL GREATER THAN
THREE-QUARTERS OF AN INCH IN DIAMETER IS ALSO POSSIBLE.

THESE STORMS WILL PRODUCE AREAS OF HEAVY RAIN...RESULTING IN RAPID
RISES ON CREEKS AND SMALLER RIVERS.

STAY TUNED TO NOAA WEATHER RADIO AND OTHER LOCAL MEDIA FOR FURTHER
DETAILS OR UPDATES.

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT
HTTP://WWW.NWS.NOAA.GOV/ER/LWX

ABW

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 2:31 PM EDTSevere Thunderstorm WarningLWXPrince William, Stafford44 min
May 25, 3:15 PM EDTSevere Thunderstorm WarningLWXFairfax, City of Alexandria45 min
May 25, 3:20 PM EDTSevere Thunderstorm WarningLWXSpotsylvania, City of Fredericksburg40 min
May 25, 3:40 PM EDTSevere Thunderstorm WarningLWXKing George, Stafford50 min
May 25, 3:26 PM EDTTornado WarningLWXCharles, Prince George's34 min
May 25, 3:40 PM EDTSevere Thunderstorm WarningLWXCharles50 min
May 25, 4:07 PM EDTSevere Thunderstorm WarningLWXPrince George's53 min
May 25, 4:24 PM EDTTornado WarningLWXPrince George's51 min
May 25, 4:32 PM EDTSevere Thunderstorm WarningLWXCharles, Saint Mary's58 min
May 25, 4:44 PM EDTSevere Thunderstorm WarningLWXAnne Arundel46 min

Nearby

Severe Thunderstorm Warnings in Maryland, 2001Every severe thunderstorm warning in 2001

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.