Alert archive / Virginia / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 51, NWS Wakefield, VA

August 27, 2001James City County, York County, City of Williamsburg, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Aug 27, 2001, 6:10 PM EDT for James City County, York County, City of Williamsburg, 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: Aug 27, 2001, 6:10 PM EDT (22:10 UTC)
Expired: Aug 27, 2001, 6:45 PM EDT
In force: 35 min
Issued by: NWS Wakefield, VA
Area: Whole counties

Counties City of Williamsburg, VA, James City County, VA, York County, VA

What was reported inside it

Time	Report	Where	Remark
Aug 27, 6:30 PM EDT	Hail 0.75	Five Forks, VA	Dime size hail reported at JCC/Williamsburg Rec Center.
Aug 27, 6:40 PM EDT	Thunderstorm Wind 59 M	Yorktown, VA	Trees down multiple locations along Colonial Parkway. Also, 68 mph wind gust measured on Coleman Bridge connecting York county to Gloucester county.

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, 10.2 hours before the alert went out and 134 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: 17 J/kg
Mixed-layer CIN: -171 J/kg
Mixed-layer LCL: 1037 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: -15 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 Wakefield, VA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 27, 2:20 PM EDT, 3 hours 50 minutes earlier.

Area forecast discussion, Aug 27, 2:20 PM EDT, 3 hours 50 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD, VA
220 PM EDT MON AUG 27 2001

SCT TSTRMS RPDLY DVLPNG ALONG TROF AS I TYPE. CELL IN FLUVANNA
CNTY QUICKLY PULSED UP TO 73 VIL IN MINUTES. XPCT OTHR CELLS
TO DVLP AND MOVE E. WND GUSTS/HAIL/HVY RAIN XPCTD NXT SVRL HRS.
BNDRY PROGGED TO MOVE E TO THE CST BY 12Z TUE. THUS...WILL CONT
CHC POPS THIS EVE...KEEP HIGHEST POPS GOING MOST OF THE NITE SERN
CSTL AREAS.

WK RIDGE BUILDS IN TUE AHEAD OF YET ANTHR BNDRY TUE NITE/WED.
NOT MUCH MSTR FOR NXT BNDRY TO WORK WITH...SO I WILL KEEP PCPN
OUT OF FCST TUE THRU WED. WDLY SCT ACTIVITY PSBL BOTH AFTRNS FROM
VA BRDR ON S...BUT WILL ONLY INCLUDE 20 POP IN CCF.

SAID BNDRY STALLS...THEN WEAKENS ACROSS SERN US LATER THIS WK AS
HIGH PRS MOVES E ACROSS NRN TIER STATES. WILL KEEP THU & FRI DRY.
AS HIGH MOVS E...TRPLCL MSTR BEGINS TO MOVE BACK N AND OVRSPRDS
RGN AHEAD OF NXT CDFRNT SLATED FOR SUN TIME FRAME. DRYER/COOLER
WX MOVES IN FOR LABOR DAY.

CWF...NO FLAGS. SW WNDS AOB 15 KTS THRU TUE...BCMG NW-N BY WED.

FCSTID = 44
SBY   68  88  67  85 /  30  10  10  10
OXB   70  87  69  83 /  30  10  10  10
ECG   71  89  69  84 /  40  20  20  20
ORF   71  89  70  83 /  40  20  20  20
PHF   70  89  69  84 /  40  20  20  20
AKQ   69  90  68  85 /  40  20  20  20
RIC   68  90  66  85 /  30  10  10  10
FVX   67  90  65  86 /  40  20  20  20

.AKQ...
MD...NONE.
NC...NONE.
VA...NONE.

In the hours before

Special weather statement, Aug 27, 2:53 PM EDT, 3 hours 17 minutes before

VAZ048-049-061>064-069-071-272000-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WAKEFIELD VA
253 PM EDT MON AUG 27 2001

...SHOWERS AND THUNDERSTORMS ACROSS NORTH CENTRAL VIRGINIA...

AT 250 PM...WEATHER SERVICE RADAR INDCIATED NUMEROUS SHOWERS AND
THUNDERSTORMS DEVELOPING ACROSS THE WESTERN PIEDMONT OF VIRGINIA.
THE STRONGEST STORMS WERE LOCATED NEAR LOUISA AND HADENSVILLE IN
LOUISA COUNTY AND LAKE POWHATAN IN POWHATAN COUNTY.

ALL STORMS WERE MOVING EAST AROUND 20 MPH...AND WILL BE MOVING INTO
HANOVER AND CAROLINE COUNTIES AFTER 300 PM. ANY STORM WILL BE CAPABLE
OF PRODUCING WIND GUSTS OVER 30 MPH...SMALL HAIL AND BRIEF HEAVY
DOWNPOURS.

44

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 27, 2:10 PM EDT	Severe Thunderstorm Warning	AKQ	Fluvanna, Goochland	35 min
Aug 27, 5:23 PM EDT	Severe Thunderstorm Warning	AKQ	Middlesex	37 min
Aug 27, 5:59 PM EDT	Severe Thunderstorm Warning	AKQ	Gloucester, Mathews	31 min
Aug 27, 7:40 PM EDT	Severe Thunderstorm Warning	AKQ	Goochland	35 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.