Alert archive / Maryland / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 41, NWS Wakefield, VA

July 5, 2001Dorchester County, Wicomico County, Maryland

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 5, 2001, 7:48 PM EDT for Dorchester County, Wicomico County, Maryland. It was in force for 27 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 5, 2001, 7:48 PM EDT (23:48 UTC)
Expired: Jul 5, 2001, 8:15 PM EDT
In force: 27 min
Issued by: NWS Wakefield, VA
Area: Whole counties

Counties Dorchester County, MD, Wicomico County, MD

What was reported inside it

Time	Report	Where	Remark
Jul 5, 8:00 PM EDT	Tornado F0	Salisbury, MD	Several tree tops snapped or twisted.
Jul 5, 8:10 PM EDT	Hail 0.75	Delmar, MD

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, 11.8 hours before the alert went out and 65 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: 24 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 843 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: 62 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.

056 
WUUS51 KAKQ 052352 CCA
SVRAKQ
MDC045-060015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING...CORRECTED
NATIONAL WEATHER SERVICE WAKEFIELD VA
748 PM EDT THU JUL 5 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WICOMICO COUNTY IN SOUTHEAST MARYLAND

* UNTIL 815 PM EDT

* AT 748 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER VIENNA...MOVING EAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR
  MARDELA SPRINGS AND GALESTOWN AT 750 PM
  SHARPTOWN AT 755 PM
  HEBRON AT 805 PM
  DELMAR AND SALISBURY AT 815 PM

THE SEVERE THUNDERSTORM IS CAPABLE OF PRODUCING
  HAIL UP TO THE SIZE OF QUARTERS.
  DAMAGING WINDS GREATER THAN 60 MILES AN HOUR.

THIS STORM HAS A HISTORY OF PRODUCING DIME TO QUARTER SIZED HAIL AND 
DAMAGING WINDS.

$$

NS
&&
LAT...LON 3859 7587 3842 7594 3831 7556 3852 7548

CORRECTED TO TAKE OUT DORCHESTER COUNTY

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 5, 2:16 PM EDT, 5 hours 32 minutes earlier.

Area forecast discussion, Jul 5, 2:16 PM EDT, 5 hours 32 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WAKEFIELD, VA
216 PM EDT THU JUL 5 2001

TROF ALOFT WL AMPLIFY INTO NE QTR OF CONUS NEXT 24 HRS...RELAX FOR
START OF THE WKND...THEN RE-AMPLIFY LTR IN THE WKND/ERY NEXT WK.
WHAT THIS MEANS IS NO PROLONGED PD HEAT/HUMIDITY ACRS FA INTO
ERY/MID NEXT WK. UNFORTUNATELY...NO GUARANTEES IN NWLY FLO ALOFT WRT
PCPN EITHER (REALLY HASNT BEEN TOO MUCH PCPN SINCE ERY JUN ACRS FA).

FOR TNGT...STRUGGLING TO KP PCPN CHCS IN FCST AS WSWLY FLO RESULTING
IN GRDLY LLVL DRYING. SFC CDFNT ARRIVES AFT MDNGT (NOT PRIMETIME FOR
CNVTV DVLPMNT). BEST LCTN FOR PSBL CNVTN MIGHT BE LWR MD ERN SHR
(CLSR TO UPR LVL SUPPORT)...OTRW TEMPTED TO JUST GO WITH HIDDEN 20%
AND LET LTR SHIFT UPDT IF NEC.

SUM LINGERING MSTR PSBL SE SXNS ERY FRI...OTRW SUBSIDENCE TAKES OVR
AND AMS DRIES SGFNTLY PRVDG PLSNT SUMMER CONDS (FRI INTO SAT). AMS
COMING IN NOT QUITE AS COOL AS THE ONE ERYR THIS WK...BUT CERTAINLY
NOT THE NRML FOR JULY. ANOTHER SYS DIVING SE FM GREAT LAKES BY SAT
NGT/SUN PRVDS ANOTHER SHOT AT PCPN (ALTHOUGH BEST ACTION MIGHT BE W
OF MTNS ALG PERIPHERY OF HOT RDG CNTRD OVR PLNS STATES. NO BIG WX
SYSTEMS ERY/MID NEXT WK...AND WL KP FCST JUST SEASONABLE/DRY.

CWF: ALL QUIET.

FCSTID = 25
SBY   67  83  56  85 /  30   0   0  10
OXB   70  80  60  82 /  30   0   0  10
ECG   72  82  63  83 /  20  10   0  10
ORF   72  80  66  83 /  20  10   0  10
PHF   68  83  61  86 /  20   0   0  10
AKQ   67  83  60  87 /  20   0   0  10
RIC   65  83  58  86 /  20   0   0  10
FVX   64  84  56  86 /  20   0   0  10

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

In the hours before

Local storm report, Jul 5, 6:53 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT...UPDATED FOR LOCATION/EVENT
NATIONAL WEATHER SERVICE WAKEFIELD,VA
653 PM EDT THU JUL 5 2001

TIME(EDT)  .....CITY LOCATION.....STATE   ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0810 PM    MADISON                   MD   TORNADO (F1)
07/04/01   DORCHESTER                     SEVERAL TREES DOWN. ONE
                                          TREE FELL ON HOME.
                                          RECREATIONAL TRAILER
                                          OVERTURNED ONTO ITS
                                          SIDE AGAINST TREE. SEVERAL
                                          CHIMNEYS BROKEN OFF HOUSES.
                                          PATH 1/2 MILE LONG AND 50
                                          YARDS WIDE.REPORTED BY LAW
                                          ENFORCEMENT AND EM...AND
                                          SURVEYED BY NWS. WINDS
                                          ESTIMATED 70 TO 80 MPH.

0805 PM    MADISON                   MD   1.00 INCH HAIL
07/04/01   DORCHESTER                     1 INCH HAIL LASTED 10
                                          MINUTES.

0830 PM    CAMBRIDGE                 MD   1.00 INCH HAIL
07/04/01   DORCHESTER                     WIDESPREAD 3/4 INCH HAIL.
                                          ESTIMATED 70MPH WIND.
                                          NUMEROUS POWER OUTAGES...
                                          REPORTED BY EMERGENCY
                                          MANAGEMENT.

0820 PM    SOUTH CAMBRIDGE           MD   WIND DAMAGE
07/04/01   DORCHESTER                     WILFRED AND CHURCH CREEK
                                          AREA...YARD LAMP POST
                                          FLATTENED...LARGE BRANCHES
                                          WERE BLOWN 300 TO 400 YARDS
                                          FROM HOUSE...BROKEN WINDOW
                                          IN HOUSE.REPORTED BY LAW
                                          ENFORCEMENT AND EM.

STORM REPORT UPDATED BASED UPON SURVEY OF DAMAGE IN MADISON THIS
AFTERNOON.

WRS/PRH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 8:15 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	30 min
Jul 5, 6:43 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	47 min
Jul 5, 7:28 PM EDT	Severe Thunderstorm Warning	AKQ	Dorchester	22 min

Nearby

Severe Thunderstorm Warnings in Maryland, 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.