Note:
The expiration time in the watch graphic is amended if the watch is
replaced, cancelled or extended.
Note: Click for
Watch Status Reports.
SEL3
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 103
NWS STORM PREDICTION CENTER NORMAN OK
255 AM EDT FRI APR 12 2013
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
CENTRAL NORTH CAROLINA
EFFECTIVE THIS FRIDAY MORNING FROM 255 AM UNTIL 900 AM EDT.
TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTHWEST OF
GREENSBORO NORTH CAROLINA TO 20 MILES SOUTHEAST OF ROCKY MOUNT
NORTH CAROLINA. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).
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 101...WW 102...
DISCUSSION...SCATTERED THUNDERSTORMS ARE MOVING ACROSS WESTERN
NC...AND WILL TRAVERSE THE WATCH AREA DURING THE NEXT SEVERAL HOURS.
SUFFICIENT AND INCREASING LOW/MID WIND SHEAR COMBINED WITH 500-1000
J/KG OF CAPE WILL PROVIDE A CONDITIONAL RISK OF SEVERE STORMS
OVERNIGHT. LOCALLY DAMAGING WINDS OR A TORNADO ARE THE PRIMARY
RISKS.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
450. MEAN STORM MOTION VECTOR 24035.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW3
WW 103 TORNADO NC 120655Z - 121300Z
AXIS..65 STATUTE MILES NORTH AND SOUTH OF LINE..
45SW GSO/GREENSBORO NC/ - 20SE RWI/ROCKY MOUNT NC/
..AVIATION COORDS.. 55NM N/S /33NE CLT - 57ESE RDU/
HAIL SURFACE AND ALOFT..0.5 INCH. WIND GUSTS..60 KNOTS.
MAX TOPS TO 450. MEAN STORM MOTION VECTOR 24035.
LAT...LON 36588050 36597765 34707765 34708050
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU3.
Watch 103 Status Report Messages:
STATUS REPORT #2 ON WW 103
VALID 121045Z - 121140Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 35 N FLO TO
10 ENE DAN.
..BROYLES..04/12/13
ATTN...WFO...RAH...
&&
STATUS REPORT FOR WT 103
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC037-051-063-065-069-077-083-085-093-101-105-127-135-145-163-
165-181-183-185-191-195-121140-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
CHATHAM CUMBERLAND DURHAM
EDGECOMBE FRANKLIN GRANVILLE
HALIFAX HARNETT HOKE
JOHNSTON LEE NASH
ORANGE PERSON SAMPSON
SCOTLAND VANCE WAKE
WARREN WAYNE WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 103
VALID 120735Z - 120840Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..BROYLES..04/12/13
ATTN...WFO...RAH...
&&
STATUS REPORT FOR WT 103
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
NCC001-007-037-051-057-063-065-067-069-077-081-083-085-093-101-
105-123-125-127-135-145-151-153-163-165-167-181-183-185-191-195-
120840-
NC
. NORTH CAROLINA COUNTIES INCLUDED ARE
ALAMANCE ANSON CHATHAM
CUMBERLAND DAVIDSON DURHAM
EDGECOMBE FORSYTH FRANKLIN
GRANVILLE GUILFORD HALIFAX
HARNETT HOKE JOHNSTON
LEE MONTGOMERY MOORE
NASH ORANGE PERSON
RANDOLPH RICHMOND SAMPSON
SCOTLAND STANLY VANCE
WAKE WARREN WAYNE
WILSON
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
Note:
Click for Complete Product Text.
Tornadoes
Probability of 2 or more tornadoes
|
Mod (30%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (30%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Low (10%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Low (<5%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
Mod (60%)
|
For each watch, probabilities for particular events inside the watch
(listed above in each table) are determined by the issuing forecaster.
The "Low" category contains probability values ranging from less than 2%
to 20% (F2-F5 tornadoes), less than 5% to 20% (all other probabilities),
"Moderate" from 30% to 60%, and "High" from 70% to greater than 95%.
High values are bolded and lighter in color to provide awareness of
an increased threat for a particular event.