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replaced, cancelled or extended.
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Watch Status Reports.
SEL8
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 228
NWS STORM PREDICTION CENTER NORMAN OK
605 PM CDT SAT MAY 2 2009
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
SOUTHERN ARKANSAS
NORTHERN LOUISIANA
SOUTHEAST OKLAHOMA
NORTHEAST AND NORTH CENTRAL TEXAS
EFFECTIVE THIS SATURDAY NIGHT FROM 605 PM UNTIL MIDNIGHT CDT.
TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF
FORT WORTH TEXAS TO 50 MILES SOUTHEAST OF MONTICELLO ARKANSAS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU8).
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 225...WW 226...WW 227...
DISCUSSION...MULTIPLE CLUSTERS OF SEVERE STORMS ARE MOVING ACROSS
NORTHEAST TX AND INTO SOUTHERN AR/NORTHERN LA THIS EVENING. VERY
UNSTABLE AIRMASS AND SUFFICIENT VERTICAL SHEAR...COUPLED WITH
APPROACHING STRONG UPPER TROUGH WILL POSE A CONTINUED RISK OF SEVERE
STORMS FOR SEVERAL MORE HOURS. BOWS/LEWPS AND ISOLATED SUPERCELLS
MAY RESULT IN TORNADOES...DAMAGING WINDS...AND HAIL.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 25030.
...HART
Note:
The Aviation Watch (SAW) product is an approximation to the watch area.
The actual watch is depicted by the shaded areas.
SAW8
WW 228 TORNADO AR LA OK TX 022305Z - 030500Z
AXIS..70 STATUTE MILES NORTH AND SOUTH OF LINE..
20SSW FTW/FORT WORTH TX/ - 50SE LLQ/MONTICELLO AR/
..AVIATION COORDS.. 60NM N/S /31SW DFW - 48WSW SQS/
HAIL SURFACE AND ALOFT..3 INCHES. WIND GUSTS..60 KNOTS.
MAX TOPS TO 500. MEAN STORM MOTION VECTOR 25030.
LAT...LON 33569750 34139113 32119113 31549750
THIS IS AN APPROXIMATION TO THE WATCH AREA. FOR A
COMPLETE DEPICTION OF THE WATCH SEE WOUS64 KWNS
FOR WOU8.
Watch 228 Status Report Messages:
STATUS REPORT #3 ON WW 228
VALID 030355Z - 030440Z
SEVERE WEATHER THREAT CONTINUES RIGHT OF A LINE FROM 15 E ACT TO
15 ENE DAL TO 25 WNW PRX.
FOR ADDITIONAL INFORMATION SEE MESOSCALE DISCUSSION 680 AND 681.
..SPC..05/03/09
ATTN...WFO...JAN...LZK...SHV...FWD...
&&
STATUS REPORT FOR WT 228
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-011-013-017-027-041-043-057-061-073-081-091-099-103-133-
139-030440-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY BRADLEY CALHOUN
CHICOT COLUMBIA DESHA
DREW HEMPSTEAD HOWARD
LAFAYETTE LITTLE RIVER MILLER
NEVADA OUACHITA SEVIER
UNION
$$
LAC013-015-017-027-031-035-049-061-065-067-073-081-083-111-119-
123-030440-
LA
. LOUISIANA PARISHES INCLUDED ARE
BIENVILLE BOSSIER CADDO
CLAIBORNE DE SOTO EAST CARROLL
JACKSON LINCOLN MADISON
MOREHOUSE OUACHITA RED RIVER
RICHLAND UNION WEBSTER
WEST CARROLL
$$
OKC089-030440-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
MCCURTAIN
$$
TXC037-063-067-119-159-183-203-213-223-231-257-277-315-343-349-
365-379-387-397-401-423-449-459-467-499-030440-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE CAMP CASS
DELTA FRANKLIN GREGG
HARRISON HENDERSON HOPKINS
HUNT KAUFMAN LAMAR
MARION MORRIS NAVARRO
PANOLA RAINS RED RIVER
ROCKWALL RUSK SMITH
TITUS UPSHUR VAN ZANDT
WOOD
$$
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.
$$
STATUS REPORT #2 ON WW 228
VALID 030305Z - 030440Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..05/03/09
ATTN...WFO...JAN...LZK...SHV...FWD...
&&
STATUS REPORT FOR WT 228
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-011-013-017-027-041-043-057-061-073-081-091-099-103-133-
139-030440-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY BRADLEY CALHOUN
CHICOT COLUMBIA DESHA
DREW HEMPSTEAD HOWARD
LAFAYETTE LITTLE RIVER MILLER
NEVADA OUACHITA SEVIER
UNION
$$
LAC013-015-017-027-031-035-049-061-065-067-073-081-083-111-119-
123-030440-
LA
. LOUISIANA PARISHES INCLUDED ARE
BIENVILLE BOSSIER CADDO
CLAIBORNE DE SOTO EAST CARROLL
JACKSON LINCOLN MADISON
MOREHOUSE OUACHITA RED RIVER
RICHLAND UNION WEBSTER
WEST CARROLL
$$
OKC089-030440-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
MCCURTAIN
$$
TXC037-063-067-085-113-119-121-139-147-159-183-203-213-217-223-
231-251-257-277-315-343-349-365-379-387-397-401-423-439-449-459-
467-499-030440-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE CAMP CASS
COLLIN DALLAS DELTA
DENTON ELLIS FANNIN
FRANKLIN GREGG HARRISON
HENDERSON HILL HOPKINS
HUNT JOHNSON KAUFMAN
LAMAR MARION MORRIS
NAVARRO PANOLA RAINS
RED RIVER ROCKWALL RUSK
SMITH TARRANT TITUS
UPSHUR VAN ZANDT WOOD
$$
THE WATCH STATUS MESSAGE IS FOR GUIDANCE PURPOSES ONLY. PLEASE
REFER TO WATCH COUNTY NOTIFICATION STATEMENTS FOR OFFICIAL
INFORMATION ON COUNTIES...INDEPENDENT CITIES AND MARINE ZONES
CLEARED FROM SEVERE THUNDERSTORM AND TORNADO WATCHES.
$$
STATUS REPORT #1 ON WW 228
VALID 030155Z - 030240Z
THE SEVERE WEATHER THREAT CONTINUES ACROSS THE ENTIRE WATCH AREA.
..SPC..05/03/09
ATTN...WFO...JAN...LZK...SHV...FWD...
&&
STATUS REPORT FOR WT 228
SEVERE WEATHER THREAT CONTINUES FOR THE FOLLOWING AREAS
ARC003-011-013-017-027-041-043-057-061-073-081-091-099-103-133-
139-030240-
AR
. ARKANSAS COUNTIES INCLUDED ARE
ASHLEY BRADLEY CALHOUN
CHICOT COLUMBIA DESHA
DREW HEMPSTEAD HOWARD
LAFAYETTE LITTLE RIVER MILLER
NEVADA OUACHITA SEVIER
UNION
$$
LAC013-015-017-027-031-035-049-061-065-067-073-081-083-111-119-
123-030240-
LA
. LOUISIANA PARISHES INCLUDED ARE
BIENVILLE BOSSIER CADDO
CLAIBORNE DE SOTO EAST CARROLL
JACKSON LINCOLN MADISON
MOREHOUSE OUACHITA RED RIVER
RICHLAND UNION WEBSTER
WEST CARROLL
$$
OKC089-030240-
OK
. OKLAHOMA COUNTIES INCLUDED ARE
MCCURTAIN
$$
TXC037-063-067-085-113-119-121-139-147-159-183-203-213-217-223-
231-251-257-277-315-343-349-365-379-387-397-401-423-439-449-459-
467-499-030240-
TX
. TEXAS COUNTIES INCLUDED ARE
BOWIE CAMP CASS
COLLIN DALLAS DELTA
DENTON ELLIS FANNIN
FRANKLIN GREGG HARRISON
HENDERSON HILL HOPKINS
HUNT JOHNSON KAUFMAN
LAMAR MARION MORRIS
NAVARRO PANOLA RAINS
RED RIVER ROCKWALL RUSK
SMITH TARRANT TITUS
UPSHUR VAN ZANDT WOOD
$$
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 (40%)
|
Probability of 1 or more strong (F2-F5) tornadoes
|
Low (20%)
|
Wind
Probability of 10 or more severe wind events
|
Mod (50%)
|
Probability of 1 or more wind events > 65 knots
|
Mod (30%)
|
Hail
Probability of 10 or more severe hail events
|
Mod (40%)
|
Probability
of 1 or
more hailstones > 2 inches
|
Mod (30%)
|
Combined Severe Hail/Wind
Probability of 6 or more combined severe hail/wind events
|
High (90%)
|
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.
weather.gov 
