Alert archive / Virginia / Tornado Watches in 2022

Tornado Watch 277

May 27, 20226 counties in Maryland; 19 counties in North Carolina; 22 counties in Virginia

The Storm Prediction Center issued this tornado watch at May 27, 2022, 11:50 AM EDT for 6 counties in Maryland; 19 counties in North Carolina; 22 counties in Virginia. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2022, 11:50 AM EDT (15:50 UTC)
Expired
May 27, 2022, 3:53 PM EDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
0.5 in
Strongest gust expected
55 kt
All 47 counties

Cecil County, MD, Dorchester County, MD, Harford County, MD, Somerset County, MD, Wicomico County, MD, Worcester County, MD, Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chowan County, NC, Craven County, NC, Currituck County, NC, Gates County, NC, Hertford County, NC, Hyde County, NC, Jones County, NC, Martin County, NC, Onslow County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Tyrrell County, NC, Washington County, NC, Accomack County, VA, City of Chesapeake, VA, City of Franklin, VA, City of Hampton, VA, City of Newport News, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Gloucester County, VA, Isle of Wight County, VA, James City County, VA, Lancaster County, VA, Mathews County, VA, Middlesex County, VA, Northampton County, VA, Northumberland County, VA, Southampton County, VA, Surry County, VA, York County, VA

The radar

The Norfolk radar (KAKQ), 62 km from the middle of the area, began a volume at 15:53 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 SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes
30%
One or more EF2 to EF5 tornadoes
10%
Ten or more severe wind reports
40%
One or more gusts of 65 knots or more
20%
Ten or more severe hail reports
5%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
50%

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 27, 12:17 PM EDTSevere Thunderstorm WarningAKQGreensville, Southampton, Sussex43 min
May 27, 12:19 PM EDTSevere Thunderstorm WarningAKQBertie, Camden, Chowan, Gates, Hertford, Pasquotank and 1 more41 min
May 27, 12:24 PM EDTSevere Thunderstorm WarningAKQGloucester, James City, King and Queen, Mathews, Middlesex, New Kent and 1 more51 min
May 27, 1:15 PM EDTSevere Thunderstorm WarningLWXBaltimore, Carroll, Harford45 min
May 27, 1:33 PM EDTSevere Thunderstorm WarningAKQDorchester42 min
May 27, 1:33 PM EDTTornado WarningLWXHarford16 min
May 27, 1:44 PM EDTSevere Thunderstorm WarningLWXCecil46 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 3.8 hours before the alert went out and 136 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-pSkew-T log-p diagram, Wallops Is Stn, VA at 12:00Z on 2022-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 39 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 12:00Z on 2022-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
39 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
471 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 27, 6:24 AM EDTTornado WatchSPCAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 6 more8 hr
May 27, 8:13 AM EDTMesoscale DiscussionSPCCharles, Prince George's2 hr
May 27, 10:59 AM EDTMesoscale DiscussionSPCAnne Arundel, Baltimore, Calvert, Carroll, Charles, Frederick and 5 more91 min
May 27, 11:55 AM EDTMesoscale DiscussionSPCCaroline, Cecil95 min
May 27, 12:57 PM EDTSevere Thunderstorm WatchSPCCaroline, Kent, Queen Anne's, Talbot5 hr
May 27, 5:45 PM EDTSevere Thunderstorm WatchSPCAnne Arundel, Calvert, Charles, Prince George's, Saint Mary's4 hr
May 27, 7:22 PM EDTMesoscale DiscussionSPCCalvert, Charles, Prince George's, Saint Mary's83 min
May 26, 8:32 PM EDTMesoscale DiscussionSPCAlexander, Cabarrus, Catawba, Davidson, Davie, Forsyth and 8 more118 min
May 27, 5:00 AM EDTMesoscale DiscussionSPCAnson, Cabarrus, Davidson, Davie, Gaston, Guilford and 11 more2 hr
May 27, 6:01 AM EDTMesoscale DiscussionSPCAlamance, Caswell, Durham, Franklin, Granville, Guilford and 6 more119 min
May 27, 10:44 AM EDTMesoscale DiscussionSPCBeaufort, Bertie, Camden, Chowan, Craven, Currituck and 14 more91 min
May 27, 2:21 PM EDTMesoscale DiscussionSPCBladen, Chatham, Columbus, Cumberland, Duplin, Durham and 20 more84 min
May 27, 3:38 PM EDTMesoscale DiscussionSPCAlleghany, Ashe, Surry97 min
May 27, 4:26 PM EDTMesoscale DiscussionSPCAlamance, Bladen, Caswell, Chatham, Columbus, Cumberland and 24 more2 hr

Nearby

Tornado Watches in Virginia, 2022Tornado Watches in North Carolina, 2022Tornado Watches in Maryland, 2022Every tornado watch in 2022

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.