Alert archive / Virginia / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 175, NWS Wakefield, VA

July 16, 2000Lancaster County, Northumberland County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 16, 2000, 2:25 PM EDT for Lancaster County, Northumberland County, Virginia. It was in force for 35 min. 2 reports 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: Jul 16, 2000, 2:25 PM EDT (18:25 UTC)
Expired: Jul 16, 2000, 3:00 PM EDT
In force: 35 min
Issued by: NWS Wakefield, VA
Area: Whole counties

Counties Lancaster County, VA, Northumberland County, VA

The radar

The Norfolk radar (KAKQ), 103 km from the middle of the area, began a volume at 18:28 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
Jul 16, 2:30 PM EDT	Hail 1.75	Weems, VA
Jul 16, 2:55 PM EDT	Hail 0.75	Mollusk, VA

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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 6.4 hours before the alert went out and 93 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: 261 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 1138 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 53 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KAKQ 161828
SVRAKQ
VAC103-119-133-161900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WAKEFIELD VA
225 PM EDT SUN JUL 16 2000

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LANCASTER COUNTY IN EASTERN VIRGINIA
  MIDDLESEX COUNTY IN EASTERN VIRGINIA
  NORTHUMBERLAND COUNTY IN EASTERN VIRGINIA

* UNTIL 300 PM EDT

* AT 225 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER WATER VIEW...MOVING EAST AT 25 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR
  NUTTSVILLE AND BERTRAND AT 230 PM
  LIVELY AND SLABTOWN AT 235 PM
  LANCASTER AND WEEMS AT 240 PM
  IRVINGTON AND BROOK VALE AT 245 PM
  KILMARNOCK AND WICOMICO CHURCH AT 250 PM
  FLEETON AND LILIAN AT 300 PM

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING
  HAIL UP TO THE SIZE OF DIMES.
  WINDS UP TO 60 MILES AN HOUR.

VERY HEAVY RAINS CAN CAUSE STANDING WATER ON ROADWAYS AND LOW LYING 
AREAS.

$$

NS

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 Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 9:45 AM EDT, 4 hours 40 minutes earlier.

Area forecast discussion, Jul 16, 9:45 AM EDT, 4 hours 40 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD, VA
945 AM EDT SUN JUL 16 2000

DSCN:
ECHO ACTIVITY (ASSCTD WITH S/W MOVG ALONG SFC TROF) CONTS TO
PULSE UP & DOWN PAST FEW HRS WITH MORE LTG DVLPNG OVR NRN NECK
ATTM. SPC HAS SERN 2/3RDS OF FA (MAINLY E OF I95) OUTLOOKED IN
SLGT RISK. WEAK CAP...MSTR CONVERGENCE ALONG SFC TROF / C-BREEZE
...CAPES OVR 2000 J/KG SHUD COMBINE WITH AFTRN HTNG TO PRODUCE
SCT SHRA/TSRA. MAY BEEF UP WORDING IN SERN ZONES. QUICK CHECK
PUTS VIL OF THE DAY IN THE L50S. AM SNDGS SPRT MAX TMPS IN THE
L-M80S....SOMEWHAT COOLER ALONG THE BEACHES.

CWF...NO FLAGS. S WNDS INCRG 10-15KT THIS AFTRN.

.AKQ...NONE.

44

?

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 11:32 AM EDT	Severe Thunderstorm Warning	AKQ	Accomack	43 min
Jul 16, 11:58 AM EDT	Flash Flood Warning	AKQ	Accomack	62 min
Jul 16, 1:00 PM EDT	Severe Thunderstorm Warning	AKQ	Hanover	30 min
Jul 16, 1:42 PM EDT	Severe Thunderstorm Warning	AKQ	Essex, King and Queen	33 min
Jul 16, 2:25 PM EDT	Severe Thunderstorm Warning	AKQ	Middlesex	35 min
Jul 16, 3:00 PM EDT	Severe Thunderstorm Warning	AKQ	Lancaster	30 min
Jul 16, 3:00 PM EDT	Severe Thunderstorm Warning	AKQ	Middlesex	30 min
Jul 16, 3:44 PM EDT	Severe Thunderstorm Warning	AKQ	Accomack	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2000 Every 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.