Alert archive / Mississippi / Severe Thunderstorm Warnings in 2009

Severe Thunderstorm Warning 127, NWS Memphis, TN

May 9, 20095 counties in Mississippi

NWS Memphis, TN issued this severe thunderstorm warning at May 9, 2009, 5:32 AM CDT for 5 counties in Mississippi. It was in force for 28 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 9, 2009, 5:32 AM CDT (10:32 UTC)
Expired: May 9, 2009, 6:00 AM CDT
In force: 28 min
Issued by: NWS Memphis, TN
Area: Storm-based polygon

Counties Coahoma County, MS, Panola County, MS, Quitman County, MS, Tallahatchie County, MS, Tunica County, MS

The radar

The Memphis radar (KNQA), 123 km from the middle of the area, began a volume at 10:35 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.

The nearest sounding before it

Little Rock, AR (KLZK), launched 00:00Z, 10.5 hours before the alert went out and 67 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2269 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 988 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 245 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 10.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Memphis, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at May 9, 4:49 AM CDT, 43 minutes earlier.

Area forecast discussion, May 9, 4:49 AM CDT, 43 minutes before

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Hazardous weather outlook, May 9, 4:57 AM CDT, 35 minutes before

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In the hours before

Local storm report, May 9, 1:25 AM CDT, 4 hours 7 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
125 AM CDT SAT MAY 09 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0323 PM     HAIL             DELAPLAINE              36.23N 90.73W
05/08/2009  E0.88 INCH       GREENE             AR   PUBLIC

0350 PM     HAIL             5 NNW PARAGOULD         36.12N 90.55W
05/08/2009  E0.75 INCH       GREENE             AR   PUBLIC

0405 PM     TSTM WND GST     5 NE PARAGOULD          36.11N 90.45W
05/08/2009  E60.00 MPH       GREENE             AR   PUBLIC

0420 PM     HAIL             ARBYRD                  36.05N 90.24W
05/08/2009  E0.75 INCH       DUNKLIN            MO   PUBLIC

1206 AM     FLASH FLOOD      6 SW KENNETT            36.18N 90.12W
05/09/2009                   DUNKLIN            MO   TRAINED SPOTTER

            3 TO 4 INCHES OF WATER ON ROADWAY...MAKING IT IMPASSABLE

1206 AM     TSTM WND GST     6 SW KENNETT            36.18N 90.12W
05/09/2009  E70.00 MPH       DUNKLIN            MO   TRAINED SPOTTER

1207 AM     HAIL             3 S KENNETT             36.20N 90.05W
05/09/2009  M0.88 INCH       DUNKLIN            MO   LAW ENFORCEMENT

            ACCOMPANIED BY 45 TO 50 MPH TSTM GUST

1217 AM     TSTM WND DMG     WARDELL                 36.35N 89.82W
05/09/2009                   PEMISCOT           MO   LAW ENFORCEMENT

            HUGE GRAIN BIN BLOWN ONTO ROADWAY

1222 AM     HEAVY RAIN       4 NW COOTER             36.09N 89.86W
05/09/2009  E0.50 INCH       PEMISCOT           MO   TRAINED SPOTTER

            WALL CLOUD WITH ROTATION...NO FUNNEL YET

1250 AM     FLASH FLOOD      MAYNARD                 36.42N 90.90W
05/09/2009                   RANDOLPH           AR   LAW ENFORCEMENT

            WATER MAKING HWY 115 IMPASSABLE...AND IS APPROACHING THE
            NEARBY HOUSES...BUT NOT YET FLOODING THE HOUSES

0108 AM     HAIL             MILLSFIELD              36.15N 89.38W
05/09/2009  E0.88 INCH       DYER               TN   TRAINED SPOTTER

            ACCOMPANIED BY VERY HEAVY RAIN

0117 AM     FUNNEL CLOUD     6 NE DYERSBURG          36.10N 89.30W
05/09/2009                   DYER               TN   TRAINED SPOTTER

            BETWEEN DYERSBURG AND NEWBERN

&&

DSV

Local storm report, May 9, 1:40 AM CDT, 3 hours 52 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
140 AM CDT SAT MAY 09 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0323 PM     HAIL             DELAPLAINE              36.23N 90.73W
05/08/2009  E0.88 INCH       GREENE             AR   PUBLIC

0350 PM     HAIL             5 NNW PARAGOULD         36.12N 90.55W
05/08/2009  E0.75 INCH       GREENE             AR   PUBLIC

0405 PM     TSTM WND GST     5 NE PARAGOULD          36.11N 90.45W
05/08/2009  E60.00 MPH       GREENE             AR   PUBLIC

0420 PM     HAIL             ARBYRD                  36.05N 90.24W
05/08/2009  E0.75 INCH       DUNKLIN            MO   PUBLIC

1206 AM     TSTM WND GST     6 SW KENNETT            36.18N 90.12W
05/09/2009  E70.00 MPH       DUNKLIN            MO   TRAINED SPOTTER

1206 AM     FLASH FLOOD      6 SW KENNETT            36.18N 90.12W
05/09/2009                   DUNKLIN            MO   TRAINED SPOTTER

            3 TO 4 INCHES OF WATER ON ROADWAY...MAKING IT IMPASSABLE

1207 AM     HAIL             3 S KENNETT             36.20N 90.05W
05/09/2009  M0.88 INCH       DUNKLIN            MO   LAW ENFORCEMENT

            ACCOMPANIED BY 45 TO 50 MPH TSTM GUST

1217 AM     TSTM WND DMG     WARDELL                 36.35N 89.82W
05/09/2009                   PEMISCOT           MO   LAW ENFORCEMENT

            HUGE GRAIN BIN BLOWN ONTO ROADWAY

1222 AM     HEAVY RAIN       4 NW COOTER             36.09N 89.86W
05/09/2009  E0.50 INCH       PEMISCOT           MO   TRAINED SPOTTER

            WALL CLOUD WITH ROTATION...NO FUNNEL YET

1250 AM     FLASH FLOOD      MAYNARD                 36.42N 90.90W
05/09/2009                   RANDOLPH           AR   LAW ENFORCEMENT

            WATER MAKING HWY 115 IMPASSABLE...AND IS APPROACHING THE
            NEARBY HOUSES...BUT NOT YET FLOODING THE HOUSES

0108 AM     HAIL             MILLSFIELD              36.15N 89.38W
05/09/2009  E0.88 INCH       DYER               TN   TRAINED SPOTTER

            ACCOMPANIED BY VERY HEAVY RAIN

0117 AM     FUNNEL CLOUD     6 NE DYERSBURG          36.10N 89.30W
05/09/2009                   DYER               TN   TRAINED SPOTTER

            BETWEEN DYERSBURG AND NEWBERN

0131 AM     FLASH FLOOD      5 W HAYTI               36.23N 89.84W
05/09/2009                   PEMISCOT           MO   TRAINED SPOTTER

            HWY C IMPASSABLE...CAR OFF ROADWAY DUE TO FLOODING

&&

DSV

Local storm report, May 9, 1:44 AM CDT, 3 hours 48 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
144 AM CDT SAT MAY 09 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0323 PM     HAIL             DELAPLAINE              36.23N 90.73W
05/08/2009  E0.88 INCH       GREENE             AR   PUBLIC

0350 PM     HAIL             5 NNW PARAGOULD         36.12N 90.55W
05/08/2009  E0.75 INCH       GREENE             AR   PUBLIC

0405 PM     TSTM WND GST     5 NE PARAGOULD          36.11N 90.45W
05/08/2009  E60.00 MPH       GREENE             AR   PUBLIC

0420 PM     HAIL             ARBYRD                  36.05N 90.24W
05/08/2009  E0.75 INCH       DUNKLIN            MO   PUBLIC

1206 AM     FLASH FLOOD      6 SW KENNETT            36.18N 90.12W
05/09/2009                   DUNKLIN            MO   TRAINED SPOTTER

            3 TO 4 INCHES OF WATER ON ROADWAY...MAKING IT IMPASSABLE

1206 AM     TSTM WND GST     6 SW KENNETT            36.18N 90.12W
05/09/2009  E70.00 MPH       DUNKLIN            MO   TRAINED SPOTTER

1207 AM     HAIL             3 S KENNETT             36.20N 90.05W
05/09/2009  M0.88 INCH       DUNKLIN            MO   LAW ENFORCEMENT

            ACCOMPANIED BY 45 TO 50 MPH TSTM GUST

1217 AM     TSTM WND DMG     WARDELL                 36.35N 89.82W
05/09/2009                   PEMISCOT           MO   LAW ENFORCEMENT

            HUGE GRAIN BIN BLOWN ONTO ROADWAY

1222 AM     HEAVY RAIN       4 NW COOTER             36.09N 89.86W
05/09/2009  E0.50 INCH       PEMISCOT           MO   TRAINED SPOTTER

            WALL CLOUD WITH ROTATION...NO FUNNEL YET

1250 AM     FLASH FLOOD      MAYNARD                 36.42N 90.90W
05/09/2009                   RANDOLPH           AR   LAW ENFORCEMENT

            WATER MAKING HWY 115 IMPASSABLE...AND IS APPROACHING THE
            NEARBY HOUSES...BUT NOT YET FLOODING THE HOUSES

0108 AM     HAIL             MILLSFIELD              36.15N 89.38W
05/09/2009  E0.88 INCH       DYER               TN   TRAINED SPOTTER

            ACCOMPANIED BY VERY HEAVY RAIN

0117 AM     FUNNEL CLOUD     6 NE DYERSBURG          36.10N 89.30W
05/09/2009                   DYER               TN   TRAINED SPOTTER

            BETWEEN DYERSBURG AND NEWBERN

0131 AM     FLASH FLOOD      5 W HAYTI               36.23N 89.84W
05/09/2009                   PEMISCOT           MO   TRAINED SPOTTER

            HWY C IMPASSABLE...CAR OFF ROADWAY DUE TO FLOODING

0133 AM     HAIL             YORKVILLE               36.10N 89.12W
05/09/2009  E0.75 INCH       GIBSON             TN   LAW ENFORCEMENT

0133 AM     TSTM WND GST     YORKVILLE               36.10N 89.12W
05/09/2009  E60.00 MPH       GIBSON             TN   LAW ENFORCEMENT

&&

DSV

Local storm report, May 9, 2:26 AM CDT, 3 hours 6 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MEMPHIS TN
226 AM CDT SAT MAY 09 2009

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0323 PM     HAIL             DELAPLAINE              36.23N 90.73W
05/08/2009  E0.88 INCH       GREENE             AR   PUBLIC

0350 PM     HAIL             5 NNW PARAGOULD         36.12N 90.55W
05/08/2009  E0.75 INCH       GREENE             AR   PUBLIC

0405 PM     TSTM WND GST     5 NE PARAGOULD          36.11N 90.45W
05/08/2009  E60.00 MPH       GREENE             AR   PUBLIC

0420 PM     HAIL             ARBYRD                  36.05N 90.24W
05/08/2009  E0.75 INCH       DUNKLIN            MO   PUBLIC

1206 AM     TSTM WND GST     6 SW KENNETT            36.18N 90.12W
05/09/2009  E70.00 MPH       DUNKLIN            MO   TRAINED SPOTTER

1206 AM     FLASH FLOOD      6 SW KENNETT            36.18N 90.12W
05/09/2009                   DUNKLIN            MO   TRAINED SPOTTER

            3 TO 4 INCHES OF WATER ON ROADWAY...MAKING IT IMPASSABLE

1207 AM     HAIL             3 S KENNETT             36.20N 90.05W
05/09/2009  M0.88 INCH       DUNKLIN            MO   LAW ENFORCEMENT

            ACCOMPANIED BY 45 TO 50 MPH TSTM GUST

1217 AM     TSTM WND DMG     WARDELL                 36.35N 89.82W
05/09/2009                   PEMISCOT           MO   LAW ENFORCEMENT

            HUGE GRAIN BIN BLOWN ONTO ROADWAY

1222 AM     HEAVY RAIN       4 NW COOTER             36.09N 89.86W
05/09/2009  E0.50 INCH       PEMISCOT           MO   TRAINED SPOTTER

            WALL CLOUD WITH ROTATION...NO FUNNEL YET

1250 AM     FLASH FLOOD      MAYNARD                 36.42N 90.90W
05/09/2009                   RANDOLPH           AR   LAW ENFORCEMENT

            WATER MAKING HWY 115 IMPASSABLE...AND IS APPROACHING THE
            NEARBY HOUSES...BUT NOT YET FLOODING THE HOUSES

0108 AM     HAIL             MILLSFIELD              36.15N 89.38W
05/09/2009  E0.88 INCH       DYER               TN   TRAINED SPOTTER

            ACCOMPANIED BY VERY HEAVY RAIN

0117 AM     FUNNEL CLOUD     6 NE DYERSBURG          36.10N 89.30W
05/09/2009                   DYER               TN   TRAINED SPOTTER

            BETWEEN DYERSBURG AND NEWBERN

0131 AM     FLASH FLOOD      5 W HAYTI               36.23N 89.84W
05/09/2009                   PEMISCOT           MO   TRAINED SPOTTER

            HWY C IMPASSABLE...CAR OFF ROADWAY DUE TO FLOODING

0133 AM     HAIL             YORKVILLE               36.10N 89.12W
05/09/2009  E0.75 INCH       GIBSON             TN   LAW ENFORCEMENT

0133 AM     TSTM WND GST     YORKVILLE               36.10N 89.12W
05/09/2009  E60.00 MPH       GIBSON             TN   LAW ENFORCEMENT

0146 AM     HAIL             DYER                    36.07N 88.99W
05/09/2009  M1.00 INCH       GIBSON             TN   LAW ENFORCEMENT

0159 AM     HAIL             6 SW BRADFORD           36.01N 88.89W
05/09/2009  E1.00 INCH       GIBSON             TN   LAW ENFORCEMENT

            NEAR VAUGHNS GROVE

&&

DSV

Special weather statement, May 9, 4:09 AM CDT, 1 hour 23 minutes before

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Special weather statement, May 9, 4:47 AM CDT, 45 minutes before

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The office that day

Everything else NWS Memphis, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 8, 8:29 PM CDT	Flash Flood Watch	MEG	Alcorn, Benton, Calhoun, Chickasaw, Coahoma, DeSoto and 16 more	47 hr
May 9, 6:36 AM CDT	Areal Flood Advisory	MEG	Benton, Coahoma, Lafayette, Marshall, Panola, Quitman and 4 more	114 min
May 9, 3:38 PM CDT	Flash Flood Warning	MEG	Coahoma, Tunica	3 hr
May 9, 4:45 PM CDT	Flash Flood Warning	MEG	Panola, Quitman, Tate, Tunica	2 hr
May 9, 5:27 PM CDT	Flash Flood Warning	MEG	Coahoma, Quitman, Tallahatchie	2 hr
May 9, 12:13 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lake, Lauderdale, Obion	47 min
May 9, 12:45 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Gibson, Lauderdale, Obion	45 min
May 9, 1:11 AM CDT	Flash Flood Warning	MEG	Dyer, Lake, Obion	6 hr
May 9, 1:16 AM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Obion, Weakley	44 min
May 9, 1:55 AM CDT	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Henderson, Henry, Madison, Weakley	50 min
May 9, 2:05 AM CDT	Severe Thunderstorm Warning	MEG	Dyer, Lauderdale	25 min
May 9, 2:26 AM CDT	Flash Flood Warning	MEG	Dyer, Lauderdale	6 hr
May 9, 2:37 AM CDT	Severe Thunderstorm Warning	MEG	Lauderdale	21 min
May 9, 3:10 AM CDT	Flash Flood Warning	MEG	Crockett, Haywood, Lauderdale, Madison, Tipton	6 hr
May 9, 5:00 AM CDT	Areal Flood Advisory	MEG	Shelby, Tipton	90 min
May 9, 6:11 AM CDT	River Flood Warning	MEG	Crockett, Dyer, Lauderdale	27 hr
May 8, 11:27 PM CDT	Severe Thunderstorm Warning	MEG	Clay, Greene	48 min
May 8, 11:31 PM CDT	Flash Flood Warning	MEG	Clay, Greene, Randolph	119 min
May 8, 11:48 PM CDT	Tornado Warning	MEG	Clay, Greene	42 min
May 9, 6:13 AM CDT	River Flood Warning	MEG	Craighead	3 days

Nearby

Severe Thunderstorm Warnings in Mississippi, 2009 Every severe thunderstorm warning in 2009

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.