Alert archive / Virginia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 21, NWS Baltimore/Washington

May 22, 2001City of Waynesboro, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at May 22, 2001, 4:52 PM EDT for City of Waynesboro, Virginia. It was in force for 23 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 22, 2001, 4:52 PM EDT (20:52 UTC)
Expired: May 22, 2001, 5:15 PM EDT
In force: 23 min
Issued by: NWS Baltimore/Washington
Area: Whole counties

County City of Waynesboro, VA

The radar

The Sterling radar (KLWX), 158 km from the middle of the area, began a volume at 20:51 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 22, 1:30 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.9 hours before the alert went out and 111 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 133 J/kg
Mixed-layer CIN: -62 J/kg
Mixed-layer LCL: 624 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 133 m²/s²
0-3 km storm-relative helicity: 167 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KLWX 222054
SVRLWX

VAC015-125-790-820-222115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE BALTIMORE-WASHINGTON
452 PM EDT TUE MAY 22 2001

THE NATIONAL WEATHER SERVICE IN STERLING VIRGINIA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NELSON COUNTY IN CENTRAL VIRGINIA
  AUGUSTA COUNTY IN WESTERN VIRGINIA
  CITY OF STAUNTON IN WESTERN VIRGINIA
  CITY OF WAYNESBORO IN WESTERN VIRGINIA

* UNTIL 515 PM EDT

* AT 447 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS FROM 11 MILES NORTHWEST OF MONTEBELLO
  TO 10 MILES SOUTH OF MONTEBELLO...MOVING NORTHEAST AT 60 MPH.

THIS STORM WILL PRODUCE STRONG WIND GUSTS OVER 58 MILES AN HOUR. THIS 
WILL LIKELY KNOCK DOWN TREES AND CAUSE DAMAGE IN SOME AREAS. IF YOU ARE 
IN THESE COUNTIES AND CITIES...GO INSIDE A STURDY SHELTER AND STAY AWAY 
FROM DOORS AND WINDOWS.

TUNE INTO NOAA WEATHER RADIO OR YOUR LOCAL RADIO OR TV STATION FOR
THE LATEST WEATHER INFORMATION.

$$
STRONG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 2:54 PM EDT	Severe Thunderstorm Warning	LWX	Spotsylvania	51 min
May 22, 4:52 PM EDT	Severe Thunderstorm Warning	LWX	Augusta, Nelson	23 min
May 22, 4:52 PM EDT	Severe Thunderstorm Warning	LWX	City of Staunton	23 min
May 22, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	Albemarle, Greene, Orange	45 min
May 22, 5:30 PM EDT	Severe Thunderstorm Warning	LWX	City of Charlottesville	45 min
May 22, 6:20 PM EDT	Severe Thunderstorm Warning	LWX	Fauquier, Prince William, Spotsylvania, Stafford, City of Fredericksburg	40 min
May 22, 6:46 PM EDT	Tornado Warning	LWX	Prince William	14 min
May 22, 7:06 PM EDT	Severe Thunderstorm Warning	LWX	Fairfax	24 min
May 22, 7:06 PM EDT	Severe Thunderstorm Warning	LWX	King George	24 min
May 22, 7:19 PM EDT	Severe Thunderstorm Warning	LWX	Arlington, City of Alexandria	26 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2001 Every 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.