Tornado Watch 27

Issued

Jan 30, 2013, 11:59 PM EST (04:59 UTC)

Expired

Jan 31, 2013, 4:43 AM EST

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

65 kt

The Norfolk radar (KAKQ), 65 km from the middle of the area, began a volume at 04:59 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.

Two or more tornadoes

30%

One or more EF2 to EF5 tornadoes

10%

Ten or more severe wind reports

30%

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

40%

• Mesoscale Discussion 107Jan 30, 9:06 PM EST
• Mesoscale Discussion 108Jan 30, 9:38 PM EST
• Mesoscale Discussion 109Jan 30, 10:42 PM EST
• Mesoscale Discussion 110Jan 31, 12:52 AM EST
• Mesoscale Discussion 112Jan 31, 3:40 AM EST

200 
WWUS20 KWNS 310457
SEL7  
SPC WW 310457
MDZ000-NCZ000-VAZ000-CWZ000-311000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 27
NWS STORM PREDICTION CENTER NORMAN OK
1155 PM EST WED JAN 30 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       THE LOWER EASTERN SHORE OF MARYLAND
       EASTERN NORTH CAROLINA
       SOUTHEASTERN VIRGINIA
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 1155 PM
UNTIL 500 AM EST.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES EAST NORTHEAST OF
SALISBURY MARYLAND TO 25 MILES SOUTHEAST OF JACKSONVILLE NORTH
CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...CONTINUE...WW 23...WW 24...WW 25...WW
26...

DISCUSSION...LOW-TOPPED...PRE-FRONTAL SQLN NOW EXTENDING FROM W OF
RICHMOND VA TO EAST OF FLORENCE SC EXPECTED TO CONTINUE ENEWD AND
OFF THE NC/VA/MD CST EARLY THU. SEASONABLY WARM/MOIST...VERY
STRONGLY-SHEARED LOW-LVL ENVIRONMENT...AND TIGHTENING OF SQLN
CIRCULATION ASSOCIATED WITH CONTINUED NEWD EJECTION OF TN VLY UPR
TROUGH...WILL BE COUNTERED BY CONTINUING PRESENCE OF RELATIVELY WARM
TEMPERATURES IN THE 700-500 MB LAYER. WHILE THIS WARM LAYER WILL
TEMPER UPDRAFT STRENGTH...INTENSITY OF LOW-LVL SHEAR AND PRESENCE
EXISTING BROKEN LINE SEGMENTS SUGGEST A CONDITIONAL RISK FOR A
TORNADO OR TWO...IN ADDITION TO DMGG WIND GUSTS...UNTIL THE
CONVECTIVE BAND CLEARS THE CST.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
300. MEAN STORM MOTION VECTOR 23060.


...CORFIDI

Tornado Watches in Virginia, 2013Tornado Watches in North Carolina, 2013Tornado Watches in Maryland, 2013Every tornado watch in 2013

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.