Over the period from Wednesday the 14th through Friday the 16th of May, a pattern set up that allowed for a significant flooding and severe weather event across southeastern Louisiana and southern Mississippi. An upper-level low lingered over the southwestern United States and northwestern Mexico as a surface low moved from the Southern Plains toward the Mid-Atlantic States. During this time frame the associated surface cold front slowly progressed eastward across Texas into Louisiana, finally moving into coastal Mississippi and southeastern Louisiana on Friday. Ahead of the cold front, abundant warm, moist air pushed across the Lower Mississippi Valley. This, coupled with a series of upper-level disturbances moving across the region, helped to create a good scenario for flooding and severe weather. Over the three-day period some sites near I-12 from Baton Rouge through Hammond, Louisiana, received 8 to 10 inches of rainfall. Through the three-day period, cooperative observers in Baton Rouge recorded 8.78", Livingston 10.25", Mandeville 6.53", and Baton Rouge Ryan Field 6.36". A long swath of golfball-sized hail (1 3/4" diameter) fell in in the storm on Wednesday as it moved from the Atchafalaya basin, passing just north of Baton Rouge, and moving through Hammond before weakening somewhat. The same storm cell continued onto the Mississippi Gulf Coast, although it was no longer severe. On Thursday damage caused tornadoes was observed near Folsom and Enon, Louisiana. Thunderstorm winds blew down a tree into a trailer, killing the man inside in Grosse Tete. On Friday morning heavy rainfall affected portions of the New Orleans metropolitan area through coastal Mississippi. Storm surveys were made on Friday. Below are some images and text products from these three days.
| Radar: | |||||
| Wednesday 14th: | Loop | 3:05pm / 2005z | 4:55pm / 2155z | 6:13pm / 2313z | 7:23pm / 0023z |
| Thursday 15th: | Loop | 7:13am / 1213z | 9:22am / 1422z | 9:41am / 1441z | 10:37am / 1537z |
| Friday 16th: | Loop | 4:02am / 0902z | 5:00am / 1000z | 5:42am / 1042z | 7:00am / 1200z |
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE NEW ORLEANS LA
609 PM CDT FRI MAY 16 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0215 PM HAIL LOTTIE 30.56N 91.64W
05/14/2008 E1.75 INCH POINTE COUPEE LA EMERGENCY MNGR
GOLFBALL-SIZED HAIL ACROSS MUCH OF PARISH ALONG 190 FROM
LOTTIE TO ERWINVILLE 215-300PM.
0215 PM HAIL 15 W BATON ROUGE 30.45N 91.38W
05/14/2008 E0.25 INCH WEST BATON ROUGE LA TRAINED SPOTTER
NEAR US190 AND 81
0245 PM HAIL LIVONIA 30.56N 91.55W
05/14/2008 E1.75 INCH POINTE COUPEE LA LAW ENFORCEMENT
GOLFBALL-SIZED HAIL REPORTED NEAR LIVONIA
0248 PM TSTM WND DMG 5 SSE LIVONIA 30.50N 91.52W
05/14/2008 POINTE COUPEE LA LAW ENFORCEMENT
TREES AND POWER LINES DOWN NEAR PARISH LINE SOUTH OF
LIVONIA. GOLFBALL-SIZED HAIL ALSO REPORTED.
0250 PM HAIL ERWINVILLE 30.53N 91.41W
05/14/2008 E2.75 INCH WEST BATON ROUGE LA PUBLIC
PUBLIC REPORTED BASEBALL-SIZED HAIL NEAR ERWINVILLE
0250 PM HAIL ERWINVILLE 30.53N 91.41W
05/14/2008 E1.75 INCH WEST BATON ROUGE LA BROADCAST MEDIA
SEVERAL REPORTS OF GOLFBALL-SIZED HAIL REPORTED VIA MEDIA
0320 PM HAIL BAKER 30.59N 91.16W
05/14/2008 E1.75 INCH EAST BATON ROUGE LA BROADCAST MEDIA
GOLFBALL-SIZED HAIL NEAR INTERSECTION OF 61 AND 19.
0340 PM HAIL ZACHARY 30.66N 91.15W
05/14/2008 E1.75 INCH EAST BATON ROUGE LA FIRE DEPT/RESCUE
GOLFBALL-SIZED REPORTED NEAR ZACHARY.
0400 PM TSTM WND DMG BATON ROUGE 30.45N 91.13W
05/14/2008 EAST BATON ROUGE LA FIRE DEPT/RESCUE
TREES AND POWER LINES DOWN ON NORTH SIDE OF BATON ROUGE.
0420 PM TSTM WND GST WATSON 30.58N 90.95W
05/14/2008 E70.00 MPH LIVINGSTON LA TRAINED SPOTTER
RETIRED NWS EMPLOYEE REPORTED 10 MINUTES OF PEA TO MARBLE
SIZE HAIL ALONG WITH 70 MPH WINDS. FLYING DEBRIS REPORTED
ALONG WITH SMALL TREES DOWN.
0420 PM TSTM WND DMG 2 N WATSON 30.60N 90.95W
05/14/2008 LIVINGSTON LA TRAINED SPOTTER
TREES DOWN ALONG WITH PEA SIZE HAIL.
0430 PM TSTM WND DMG WATSON 30.58N 90.95W
05/14/2008 LIVINGSTON LA TRAINED SPOTTER
WIDESPREAD MODERATE DAMAGE. STREET SIGNS MANGLED TO
POLES.
0450 PM HAIL LIVINGSTON 30.50N 90.75W
05/14/2008 E1.75 INCH LIVINGSTON LA CO-OP OBSERVER
0505 PM HAIL 5 WNW PONCHATOULA 30.47N 90.52W
05/14/2008 E1.00 INCH TANGIPAHOA LA AIRPLANE PILOT
QUARTER SIZE HAIL IN TOWN OF PUMPKIN CENTER.
0530 PM HAIL HAMMOND 30.51N 90.46W
05/14/2008 E1.75 INCH TANGIPAHOA LA AIRPLANE PILOT
GOLFBALL SIZE HAIL NEAR SOUTHEASTERN LOUISIANA UNIVERSITY
CAMPUS.
0550 PM TSTM WND DMG 1 S WALKER 30.47N 90.87W
05/14/2008 LIVINGSTON LA NWS EMPLOYEE
TREE DOWN. MCDONALDS SIGN BLOWN DOWN. STREETS FLOODED.
0550 PM FLASH FLOOD LIVINGSTON 30.50N 90.75W
05/14/2008 LIVINGSTON LA CO-OP OBSERVER
5 INCHES OF RAIN MEASURED SINCE 430 PM.
0640 PM TSTM WND GST COVINGTON 30.48N 90.11W
05/14/2008 M57.00 MPH ST. TAMMANY LA NWS EMPLOYEE
MARBLE SIZE HAIL AND A MEASURED WIND GUST TO 57 MPH
REPORTED IN THE LAKE RAMSEY AREA OF COVINGTON.
0800 PM FLASH FLOOD MANDEVILLE 30.37N 90.08W
05/14/2008 ST. TAMMANY LA AIRPLANE PILOT
SOME STREETS IMPASSABLE DUE TO 4 TO 4.5 INCHES OF RAIN
WHICH FELL IN ABOUT ONE HOUR.
0922 PM TSTM WND DMG 4 SE COVINGTON 30.44N 90.06W
05/14/2008 ST. TAMMANY LA NWS EMPLOYEE
TREES DOWN NEAR HIGHWAY 190 AND INTERSTATE 12.
0400 AM TSTM WND DMG THIBODAUX 29.79N 90.82W
05/15/2008 LAFOURCHE LA EMERGENCY MNGR
SEVERAL TREES AND POWER LINES DOWN. TIME ESTIMATED.
0745 AM TSTM WND DMG PLAQUEMINE 30.28N 91.24W
05/15/2008 IBERVILLE LA EMERGENCY MNGR
TREE BLOWN DOWN.
0745 AM TSTM WND DMG GROSSE TETE 30.41N 91.44W
05/15/2008 IBERVILLE LA EMERGENCY MNGR
*** 1 FATAL *** THUNDERSTORM WINDS BLEW DOWN A TREE THAT
FELL ON A TRAILER KILLING A MAN INSIDE.
0810 AM TSTM WND DMG THIBODAUX 29.79N 90.82W
05/15/2008 LAFOURCHE LA NEWSPAPER
TWO TREES ON HOUSES
0810 AM TSTM WND DMG HOUMA 29.58N 90.71W
05/15/2008 TERREBONNE LA NEWSPAPER
TREE ON TRAILER IN HOUMA
0815 AM TSTM WND DMG HOUMA 29.58N 90.71W
05/15/2008 TERREBONNE LA EMERGENCY MNGR
3 TREES BLOWN DOWN ON HOMES...2 IN HOUMA...1 IN SCHRIEVER
0830 AM TSTM WND DMG METAIRIE 30.00N 90.18W
05/15/2008 JEFFERSON LA PUBLIC
TIME ESTIMATED BASED ON RADAR. MAGNOLIA TREE 2 FT IN
DIAMETER UPROOTED.
0845 AM TSTM WND DMG 4 W PONCHATOULA 30.44N 90.51W
05/15/2008 TANGIPAHOA LA NWS STORM SURVEY
NUMEROUS TREES BLOWN DOWN NEAR PUMPKIN CENTER COMMUNITY.
0845 AM TSTM WND DMG METAIRIE 30.00N 90.18W
05/15/2008 JEFFERSON LA PUBLIC
TWO PINE TREES WERE SNAPPED BY THUNDERSTORM WINDS.
0845 AM TSTM WND DMG HARAHAN 29.94N 90.20W
05/15/2008 JEFFERSON LA BROADCAST MEDIA
NUMEROUS LIMBS AND A FEW TREES DOWN.
0845 AM TSTM WND DMG HARAHAN 29.94N 90.20W
05/15/2008 JEFFERSON LA AIRPLANE PILOT
MULTIPLE LIMBS AND A FEW TREES SNAPPED.
0900 AM TSTM WND DMG SLIDELL 30.28N 89.78W
05/15/2008 ST. TAMMANY LA BROADCAST MEDIA
TURTLE CREEK SUBDIVISION HAD TREES BLOWN DOWN AND
BASKETBALL POLES SNAPPED.
0900 AM TORNADO 2 SW FOLSOM 30.61N 90.22W
05/15/2008 F1 ST. TAMMANY LA NWS STORM SURVEY
EF1 TORNADO BEGAN 2.5 MI SW OF FOLSOM ENDING ABOUT 3.5
ESE OF FOLSOM. PATH LENGTH WAS 6 MI. PATH WIDTH WAS 75
YARDS. DAMAGE CONSISTED MAINLY OF SEVERAL LARGE PINE
TREES SNAPPED IN HALF AND SEVERAL LARGE OAK TREES
UPROOTED. NUMEROUS LARGE BRANCHES WERE BLOWN DOWN. A FEW
STRUCTURES HAD ROOF DAMAGE AND AT LEAST ONE LARGE METAL
OUTBUILDING HAD HEAVY DAMAGE.
0900 AM TSTM WND DMG LYMAN 30.50N 89.13W
05/15/2008 HARRISON MS EMERGENCY MNGR
NUMEROUS TREES AND POWER LINES DOWN ACROSS COUNTY.
0900 AM TSTM WND DMG NEW ORLEANS 29.97N 90.08W
05/15/2008 ORLEANS LA EMERGENCY MNGR
TREES DOWN IN UPTOWN NEW ORLEANS
0905 AM TSTM WND DMG SLIDELL 30.28N 89.78W
05/15/2008 ST. TAMMANY LA NWS EMPLOYEE
TREES BLOWN DOWN AROUND INDIAN VILLAGE ROAD IN SOUTHEAST
SLIDELL
0915 AM TSTM WND DMG METAIRIE 30.00N 90.18W
05/15/2008 JEFFERSON LA BROADCAST MEDIA
POWER POLE DOWN ACROSS CAUSEWAY BLVD NEAR 45TH ST.
0920 AM TORNADO 4 ENE ENON 30.75N 90.02W
05/15/2008 F1 WASHINGTON LA NWS STORM SURVEY
AN EF1 TORNADO BEGAN ABOUT 4 MI ENE OF ENON TERMINATING
ABOUT 6.5 MI ENE OF ENON. PATH LENGTH WAS 2.5 MI. PATH
WIDTH WAS 100 YDS. DAMAGE CONSISTED MAINLY OF LARGE TREES
SNAPPED IN HALF AND UPROOTED. LARGE METAL BUILDING WAS
HEAVILY DAMAGED. TORNADO WAS ASSOCIATED WITH A LARGE
MESOCYCLONE WITH BROAD AREA OF WIND DAMAGE WHICH EXTENDED
FROM ENON TO BOGULUSA.
0930 AM TSTM WND DMG 5 NNE PICAYUNE 30.60N 89.65W
05/15/2008 PEARL RIVER MS PUBLIC
NUMEROUS TREES WERE SNAPPED AND TREE LIMBS KNOCKED DOWN
BY THUNDERSTORM WINDS ON HERB LEE FRED SPEIRS ROAD IN
CARRIERE.
0930 AM TSTM WND DMG PICAYUNE 30.53N 89.68W
05/15/2008 PEARL RIVER MS LAW ENFORCEMENT
TREE DOWN ON HOUSE
0930 AM TSTM WND DMG 10 W MCNEIL 30.67N 89.81W
05/15/2008 PEARL RIVER MS LAW ENFORCEMENT
SEVERAL TREES DOWN NEAR HWY 43
1000 AM TSTM WND DMG LYMAN 30.50N 89.13W
05/15/2008 HARRISON MS EMERGENCY MNGR
NUMEROUS TREES AND POWER LINES DOWN NEAR OLD HWY 49 IN
LYMAN...JONES AND MILL ROAD...CABLE BRIDGE RD AND
FIRETOWER RD. NUMEROUS ROAD CONES AND SIGN BLOWN AROUND
ON HWY 49.
1030 AM TSTM WND DMG PASCAGOULA 30.37N 88.55W
05/15/2008 JACKSON MS EMERGENCY MNGR
TREES DOWN
1035 AM TSTM WND DMG WADE 30.64N 88.57W
05/15/2008 JACKSON MS EMERGENCY MNGR
TREE DOWN
1200 PM FLASH FLOOD BATON ROUGE 30.45N 91.13W
05/15/2008 EAST BATON ROUGE LA CO-OP OBSERVER
RAINFALL TOTAL FROM YESTERDAY THROUGH THIS MORNING OF
8.78 INCHES.
&&
$$
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