Alert archive / Maryland / Severe Thunderstorm Warnings in 2017
Severe Thunderstorm Warning 157, NWS Wakefield, VA
NWS Wakefield, VA issued this severe thunderstorm warning at Jul 22, 2017, 3:47 PM EDT for Dorchester County, Wicomico County, Maryland. It was in force for 43 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
- Jul 22, 2017, 3:47 PM EDT (19:47 UTC)
- Expired
- Jul 22, 2017, 4:30 PM EDT
- In force
- 43 min
- Issued by
- NWS Wakefield, VA
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Dorchester County, MD, Wicomico County, MD
The radar
The Dover AFB radar (KDOX), 60 km from the middle of the area, began a volume at 19:48 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 nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.8 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.
- Mixed-layer CAPE
- 83 J/kg
- Mixed-layer CIN
- -191 J/kg
- Mixed-layer LCL
- 1397 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 66 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 22, 1:25 PM EDT, 2 hours 22 minutes earlier.
Area forecast discussion, Jul 22, 1:25 PM EDT, 2 hours 22 minutes before
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</html>Hazardous weather outlook, Jul 22, 3:16 AM EDT, 12 hours 31 minutes before
Hazardous Weather Outlook National Weather Service Wakefield VA 316 AM EDT Sat Jul 22 2017 MDZ021>024-VAZ062-064-075>078-083-085-099-511-512-515>522-230730- Dorchester-Wicomico-Somerset-Inland Worcester-Goochland-Caroline- Westmoreland-Richmond-Northumberland-Lancaster-New Kent-Middlesex- Accomack-Western Hanover-Eastern Hanover- Western Henrico (Including the City of Richmond)-Eastern Henrico- Western King William-Eastern King William-Western King and Queen- Eastern King and Queen-Western Essex-Eastern Essex- 316 AM EDT Sat Jul 22 2017 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for southeast Maryland, central Virginia, east central Virginia, eastern Virginia, north central Virginia and southeast Virginia. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. There is also a slight risk for severe thunderstorms from mid-afternoon into this evening. The main threats are damaging wind gusts...frequent lightning and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a slight risk for severe thunderstorms Sunday afternoon into Sunday evening...with the main threats once again damaging winds...frequent lightning and locally heavy rainfall. Additionally, heat indices could rise to 100 to 105 degrees midday Sunday through Sunday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. MDZ025-230730- Maryland Beaches- 316 AM EDT Sat Jul 22 2017 This Hazardous Weather Outlook is for southeast Maryland. .DAY ONE...Today and Tonight. Heat index values will climb to around 100 degrees from late morning through this afternoon. There is also a slight risk for severe thunderstorms from late afternoon into this evening. The main threats are damaging wind gusts...frequent lightning and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday. There is a slight risk for severe thunderstorms Sunday afternoon into Sunday evening. The main threat is damaging wind gusts. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. VAZ060-061-065>069-079>082-084-086>090-092-093-095>098-100-513-514- 523>525-230730- Prince Edward-Cumberland-Mecklenburg-Lunenburg-Nottoway-Amelia- Powhatan-Brunswick-Dinwiddie-Prince George-Charles City-Gloucester- Mathews-Greensville-Sussex-Surry-James City-Southampton- Isle of Wight-Norfolk/Portsmouth-Suffolk-Chesapeake-Virginia Beach- Northampton-Western Chesterfield- Eastern Chesterfield (Including Col. Heights)-York-Newport News- Hampton/Poquoson- 316 AM EDT Sat Jul 22 2017 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for central Virginia, east central Virginia, eastern Virginia, south central Virginia and southeast Virginia. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. There is also a slight risk for severe thunderstorms from mid-afternoon into this evening. The main threats are damaging wind gusts...frequent lightning and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Potential for strong to locally severe thunderstorms continues from Sunday afternoon into Sunday evening. The main threat is damaging wind gusts. Additionally, heat indices could rise to 100 to 105 degrees midday Sunday through Sunday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ012>017-030>032-230730- Northampton-Hertford-Gates-Pasquotank-Camden-Western Currituck- Bertie-Chowan-Perquimans- 316 AM EDT Sat Jul 22 2017 ...HEAT ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 8 PM EDT THIS EVENING... This Hazardous Weather Outlook is for northeast North Carolina. .DAY ONE...Today and Tonight. Please listen to NOAA Weather Radio or go to weather.gov on the Internet for more information about the following hazards. Heat Advisory. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Heat indices of 105 to 108 degrees are possible midday Sunday through Sunday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. NCZ102-230730- Eastern Currituck- 316 AM EDT Sat Jul 22 2017 This Hazardous Weather Outlook is for northeast North Carolina. .DAY ONE...Today and Tonight. Heat index values around 100 degrees are possible from late morning through mid-afternoon today. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Heat indices of around 100 are possible once again on Sunday. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. VAZ048-509-510-230730- Fluvanna-Western Louisa-Eastern Louisa- 316 AM EDT Sat Jul 22 2017 This Hazardous Weather Outlook is for central Virginia. .DAY ONE...Today and Tonight. Heat index values will climb to around 100 degrees from late morning through mid-afternoon. There is also a slight risk for severe thunderstorms from mid-afternoon into this evening. The main threats are damaging wind gusts...frequent lightning and locally heavy rainfall. .DAYS TWO THROUGH SEVEN...Sunday through Friday. Potential for strong to locally severe thunderstorms continues from Sunday afternoon into Sunday evening. The main threat is damaging wind gusts. Additionally, heat indices could again rise to 100 to 104 degrees midday Sunday through Sunday afternoon. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time.
In the hours before
Special weather statement, Jul 22, 3:24 PM EDT, 23 minutes before
Special Weather Statement
National Weather Service Wakefield VA
324 PM EDT SAT JUL 22 2017
MDZ024-025-222015-
Maryland Beaches-Inland Worcester-
324 PM EDT SAT JUL 22 2017
...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN WORCESTER COUNTY...
At 324 PM EDT, a strong thunderstorm was located over Selbyville...or
9 miles northwest of Ocean City, moving southeast at 20 mph.
Wind gusts in excess of 40 mph are possible with this storm.
This storm will be near...
Ocean Pines around 335 PM EDT.
Berlin around 340 PM EDT.
Cape Isle Of Wight around 350 PM EDT.
Ocean City around 355 PM EDT.
Other locations impacted by this storm include Bishop...West Ocean
City...Showell...Ocean City Municipality and Bishopville.
If you see lightning or hear thunder...you are at risk. Take shelter
indoors immediately. If you cannot find shelter in a building a
vehicle provides safety from lightning.
Strong wind gusts are possible with this storm. These wind gusts are
capable of knocking down tree limbs...small or weakened trees...and
blowing around trash cans...potted plants...lawn furniture and other
light outdoor objects.
LAT...LON 3830 7505 3829 7507 3826 7508 3844 7534
3845 7534 3845 7505
TIME...MOT...LOC 1924Z 304DEG 16KT 3845 7520
ZIMMERMANSpecial weather statement, Jul 22, 3:33 PM EDT, 14 minutes before
Special Weather Statement
National Weather Service Wakefield VA
333 PM EDT SAT JUL 22 2017
MDZ021-222015-
Dorchester-
333 PM EDT SAT JUL 22 2017
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT DORCHESTER COUNTY...
At 332 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Grasonville to Copperville to near
St. Michaels to 7 miles northeast of Flag Harbor. Movement was east
at 35 mph.
Wind gusts of 40 to 50 mph and frequent cloud to ground lightning
are possible with these storms.
These storms will be near...
University Of Maryland Center For Environmental Studies around 355
PM EDT.
Cambridge and Secretary around 400 PM EDT.
Hurlock around 410 PM EDT.
Vienna around 415 PM EDT.
Other locations impacted by these storms include Madison...
Brookview...Eldorado...Woolford...Hudson...East New Market...Church
Creek...Bucktown...Linkwood and Lloyds.
If you see lightning or hear thunder...you are at risk. Take shelter
indoors immediately. If you cannot find shelter in a building a
vehicle provides safety from lightning.
Strong wind gusts are possible with these storms. These wind gusts
are capable of knocking down tree limbs...small or weakened trees...
and blowing around trash cans...potted plants...lawn furniture and
other light outdoor objects.
LAT...LON 3868 7580 3869 7576 3864 7571 3860 7570
3835 7597 3849 7631 3853 7620 3856 7621
3854 7628 3857 7631 3860 7626 3863 7629
3860 7621 3863 7617 3859 7616 3857 7603
3868 7594 3870 7585
TIME...MOT...LOC 1932Z 286DEG 31KT 3892 7615 3881 7617 3875 7621 3855
7640
ZIMMERMANThe office that day
Everything else NWS Wakefield, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 22, 3:27 PM EDT | Special Marine Warning | AKQ | 63 min | |
| Jul 22, 4:05 PM EDT | Heat Advisory | AKQ | Accomack, Amelia, Brunswick, Charles City, Chesterfield, Dinwiddie and 32 more | 28 hr |
| Jul 22, 4:21 PM EDT | Special Weather Statement | AKQ | Southampton, City of Franklin | 39 min |
| Jul 22, 4:48 PM EDT | Special Weather Statement | AKQ | City of Chesapeake, City of Suffolk | 42 min |
| Jul 22, 4:50 PM EDT | Special Marine Warning | AKQ | 85 min | |
| Jul 22, 5:19 PM EDT | Special Weather Statement | AKQ | York, City of Newport News | 41 min |
| Jul 22, 5:58 PM EDT | Special Weather Statement | AKQ | City of Hampton, City of Newport News, City of Poquoson | 32 min |
| Jul 22, 6:07 PM EDT | Special Weather Statement | AKQ | Louisa | 38 min |
| Jul 22, 6:10 PM EDT | Special Marine Warning | AKQ | 50 min | |
| Jul 22, 6:12 PM EDT | Special Marine Warning | AKQ | 63 min | |
| Jul 22, 6:29 PM EDT | Special Weather Statement | AKQ | King George | 46 min |
| Jul 22, 6:30 PM EDT | Special Weather Statement | AKQ | Northampton | 45 min |
| Jul 22, 6:34 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, Essex, Westmoreland | 41 min |
| Jul 22, 6:39 PM EDT | Special Marine Warning | AKQ | 66 min | |
| Jul 22, 6:40 PM EDT | Special Weather Statement | AKQ | Mathews | 50 min |
| Jul 22, 6:42 PM EDT | Special Marine Warning | AKQ | 33 min | |
| Jul 22, 6:51 PM EDT | Special Weather Statement | AKQ | Northampton | 39 min |
| Jul 22, 7:04 PM EDT | Severe Thunderstorm Warning | AKQ | Caroline, Essex, King and Queen, Richmond, Westmoreland | 41 min |
| Jul 22, 7:16 PM EDT | Special Marine Warning | AKQ | 59 min | |
| Jul 22, 7:17 PM EDT | Special Weather Statement | AKQ | Northampton | 28 min |
| Jul 22, 7:45 PM EDT | Severe Thunderstorm Warning | AKQ | Essex, Lancaster, Northumberland, Richmond, Westmoreland | 60 min |
| Jul 22, 5:34 PM EDT | Special Weather Statement | AKQ | Gates | 41 min |
| Jul 22, 5:39 PM EDT | Special Weather Statement | AKQ | Hertford | 36 min |
| Jul 22, 6:46 PM EDT | Special Weather Statement | AKQ | Pasquotank | 44 min |
| Jul 22, 3:24 PM EDT | Special Weather Statement | AKQ | Worcester | 51 min |
| Jul 22, 3:33 PM EDT | Special Weather Statement | AKQ | Dorchester | 42 min |
| Jul 22, 4:04 PM EDT | Special Weather Statement | AKQ | Dorchester, Wicomico | 41 min |
| Jul 22, 4:30 PM EDT | Severe Thunderstorm Warning | AKQ | Dorchester, Wicomico, Worcester | 45 min |
| Jul 22, 5:17 PM EDT | Special Weather Statement | AKQ | Worcester | 28 min |
| Jul 22, 6:48 PM EDT | Special Weather Statement | AKQ | Dorchester | 42 min |
| Jul 22, 7:46 PM EDT | Special Weather Statement | AKQ | Somerset, Wicomico | 44 min |
Nearby
Severe Thunderstorm Warnings in Maryland, 2017Every severe thunderstorm warning in 2017
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.