Alert archive / West Virginia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 61, NWS Baltimore/Washington

June 12, 2001Morgan County, West Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 12, 2001, 4:33 PM EDT for Morgan County, West Virginia. It was in force for 42 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 12, 2001, 4:33 PM EDT (20:33 UTC)
Expired
Jun 12, 2001, 5:15 PM EDT
In force
42 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Morgan County, WV

The radar

The Sterling radar (KLWX), 93 km from the middle of the area, began a volume at 20:37 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

TimeReportWhereRemark
Jun 12, 5:10 PM EDTHail 0.75Berkeley Spgs, WVDime sized hail fell.

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, 8.6 hours before the alert went out and 100 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 2001-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 290 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, Washington/Dulle, VA at 12:00Z on 2001-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.1939Sfc1 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
290 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1099 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

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 12, 3:00 PM EDT, 1 hour 33 minutes earlier.

Area forecast discussion, Jun 12, 3:00 PM EDT, 1 hour 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE BALTIMORE/WASHINGTON
300 PM EDT TUE JUN 12 2001

WITH TEMPS IN THE LOWER 90 AND DEW POINTS AROUND 70. HEAT INDICES
WILL RANGE BETWEEN 95 TO 100 DEGREES. SO HAVE ISSUED HEAT ADVISORY
FOR CWA FOR WEDNESDAY. THE CWA WILL BE SQUEEZED BETWEEN EVENING
CONVECTION TO THE NORTH AND WEST AND THE REMNANTS OF ALLISON TO THE
SOUTH. AS ALLISON MOVES NE IT SHOULD SLOW AS HIGH PRESSURE BUILDS TO
THE NORTH. IN ADDITION REMNANTS OF MCS/CONV ACTVTY OVR THE GRT LKS
AND VCNTY MAY ALSO AFFECT THE CWA. BY LATE WED A WEAKENING H5
IMPULSE PASS TO THE NORTH IN WEAK NW FLOW OF BLDG UPR RDG. SO WILL
INCREASE CLOUDS AND KEEP LOW POPS OF PCPN INTO FRIDAY IN MOST
LOCATIONS. A WEAK COLD FRONT IS PROGED OVER THE WEEKEND SO WILL KEEP
A SLIGHTLY COOLER AND MOSTLY DRY IN THE EXTENDED.

FCSTID = 17
DCA   68  91  68  86 /  20  30  30  30
BWI   68  91  68  87 /  20  30  30  30
MRB   65  91  67  87 /  20  30  30  30
IAD   68  91  68  87 /  20  30  30  30
CHO   65  90  65  85 /  20  30  30  30
HGR   65  91  67  87 /  20  30  30  30
NHK   68  90  68  87 /  20  30  30  30

.LWX...
DC...HEAT ADVISORY FOR WEDNESDAY FOR ZONE DCZ001.

MD...HEAT ADVISORY FOR WEDNESDAY FOR ZONES
MDZ002>007...MDZ009>011...MDZ013>014...MDZ016>018.

VA...HEAT ADVISORY FOR WEDNESDAY FOR ZONES
VAZ021...VAZ025>031...VAZ036>042...VAZ050>057.

WV...HEAT ADVISORY FOR WEDNESDAY FOR ZONES WVZ048>055.

In the hours before

Special weather statement, Jun 12, 11:30 AM EDT, 5 hours 3 minutes before
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042-
050>057-WVZ048>055-122300-

SPECIAL WEATHER STATEMENT...CORRECTION EXPIRATION TIME...
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
1130 AM EDT TUE JUN 12 2001

...HOT AND HUMID WEATHER EXPECTED FOR THE MID ATLANTIC TODAY AND WEDNESDAY...

TODAY AND WEDNESDAY ARE EXPECTED TO BE THE WARMEST DAYS OF THE WEEK.
HIGH TEMPERATURES TODAY WILL BE AROUND 90 DEGREES... WHILE HIGHS ON
WEDNESDAY ARE EXPECTED TO REACH THE LOWER 90S IN MOST AREAS. WITH
DEW POINT TEMPERATURES IN THE UPPER 60S TO NEAR 70... HEAT INDEX
VALUES WILL BE NEAR 95 DEGREES THIS AFTERNOON AND BETWEEN 95 TO 100
DEGREES WEDNESDAY AFTERNOON. HOT AND HUMID WEATHER WILL LAST INTO
THURSDAY...ALTHOUGH HEAT INDICES WILL BE BELOW 95 DEGREES.

NIGHTTIME WILL PROVIDE LITTLE RELIEF...ESPECIALLY IN THE INNER CITY
AREAS OF WASHINGTON AND BALTIMORE.

PERSONS PLANNING OUTDOOR ACTIVITIES THIS AFTERNOON AND WEDNESDAY MAY
WANT TO CONSIDER THE HIGH TEMPERATURES AND HUMIDITY. IF YOU ARE
OUTSIDE DURING THE HEAT OF THE DAY...TRY NOT TO OVER-EXERT YOURSELF
AND DRINK PLENTY OF LIQUIDS.

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

ND
Special weather statement, Jun 12, 11:30 AM EDT, 5 hours 3 minutes before
DCZ001-MDZ002>007-009>011-013-014-016>018-VAZ021-025>031-036>042-
050>057-WVZ048>055-121500-

SPECIAL WEATHER STATEMENT...CORRECTION PIL...
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
1130 AM EDT TUE JUN 12 2001

...HOT AND HUMID WEATHER EXPECTED FOR THE MID ATLANTIC TODAY AND WEDNESDAY...

TODAY AND WEDNESDAY ARE EXPECTED TO BE THE WARMEST DAYS OF THE WEEK.
HIGH TEMPERATURES TODAY WILL BE AROUND 90 DEGREES... WHILE HIGHS ON
WEDNESDAY ARE EXPECTED TO REACH THE LOWER 90S IN MOST AREAS. WITH
DEW POINT TEMPERATURES IN THE UPPER 60S TO NEAR 70... HEAT INDEX
VALUES WILL BE NEAR 95 DEGREES THIS AFTERNOON AND BETWEEN 95 TO 100
DEGREES WEDNESDAY AFTERNOON. HOT AND HUMID WEATHER WILL LAST INTO
THURSDAY...ALTHOUGH HEAT INDICES WILL BE BELOW 95 DEGREES.

NIGHTTIME WILL PROVIDE LITTLE RELIEF...ESPECIALLY IN THE INNER CITY
AREAS OF WASHINGTON AND BALTIMORE.

PERSONS PLANNING OUTDOOR ACTIVITIES THIS AFTERNOON AND WEDNESDAY MAY
WANT TO CONSIDER THE HIGH TEMPERATURES AND HUMIDITY. IF YOU ARE
OUTSIDE DURING THE HEAT OF THE DAY...TRY NOT TO OVER-EXERT YOURSELF
AND DRINK PLENTY OF LIQUIDS.

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

ND

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 5:30 PM EDTSevere Thunderstorm WarningLWXWashington30 min
Jun 12, 7:20 PM EDTSevere Thunderstorm WarningLWXCarroll40 min
Jun 12, 7:49 PM EDTSevere Thunderstorm WarningLWXBaltimore41 min
Jun 12, 6:02 PM EDTSevere Thunderstorm WarningLWXBerkeley28 min
Jun 12, 6:25 PM EDTSevere Thunderstorm WarningLWXJefferson35 min

Nearby

Severe Thunderstorm Warnings in West Virginia, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.