Alabama 811 | Know What's Below.

Bad Time For Middle of USA

| April 9, 2008 @ 9:25 am | 6 Replies

In addition to a significant threat of severe thunderstorms and tornadoes, very heavy rain (as much as 4 inches in some areas) may occur from North Texas to Illinois over the next several days. Definitely not needed.

MODERATE RISK EXTENDS MORE TO EAST TOMORRW
For Thursday and Thursday Night, the Storm Prediction Center has placed these areas under the dreaded Moderate Risk category:

….Almost all of Arkansas
….Extreme North Louisiana
….NW Mississippi
….Extreme West Tennessee
….West tip of kentucky
….Most of Central and East Missouri
….South and SW Illinois

This includes the possibility of strong, long-track tornadoes.

——————————————————————————–
PUBLIC SEVERE WEATHER OUTLOOK
NWS STORM PREDICTION CENTER NORMAN OK
0507 AM CDT WED APR 09 2008

…SEVERE THUNDERSTORMS EXPECTED OVER PARTS OF THE SOUTHERN PLAINS
LATER TODAY THROUGH THURSDAY MORNING…

THE NWS STORM PREDICTION CENTER IN NORMAN OK IS FORECASTING THE
DEVELOPMENT OF A FEW STRONG TORNADOES ALONG WITH VERY LARGE HAIL AND
DAMAGING WINDS OVER PARTS OF THE SOUTHERN PLAINS LATER TODAY THROUGH
THURSDAY MORNING.

THE AREAS MOST LIKELY TO EXPERIENCE THIS ACTIVITY INCLUDE

SOUTHERN OKLAHOMA
A LARGE PART OF CENTRAL AND NORTHERN TEXAS

SURROUNDING THE HIGHEST RISK AREA…THERE IS A SLIGHT RISK OF SEVERE
THUNDERSTORMS FROM SOUTH TEXAS NORTH AND EAST INTO PARTS OF
KANSAS…SOUTHWEST MNISSIORI…ARKANSAS AND LOUISIANA

A VERY STRONG HIGH-LEVEL STORM SYSTEM NOW OVER ARIZONA AND
NEVADA…WITH 120 MPH JET STREAM WINDS…WILL SWEEP EAST INTO FAR
WEST TEXAS AND EASTERN NEW MEXICO EARLY THURSDAY. AS THIS
OCCURS…A SURFACE LOW THAT WILL FORM LATER TODAY OVER EASTERN NEW
MEXICO WILL MOVE EAST INTO NORTH TEXAS THURSDAY MORNING.

SOUTHEASTERLY SURFACE WINDS ARE ALREADY SPREADING VERY WARM AND
HUMID AIR ACROSS SOUTHERN AND CENTRAL TEXAS. THESE WINDS WILL
INCREASE IN STRENGTH AND BREADTH THROUGH EARLY THURSDAY AS THE NEW
MEXICO LOW HEADS EASTWARD.

THE COMBINATION OF INCREASINGLY WARM AND HUMID AIR NEAR THE
SURFACE…WITH FAST JET STREAM FLOW ALOFT…WILL CREATE A FAVORABLE
ENVIRONMENT FOR SUSTAINED ROTATING THUNDERSTORMS CALLED SUPERCELLS
FROM CENTRAL TEXAS AND SOUTHERN OKLAHOMA.

SCATTERED STORMS WITH HAIL MAY OCCUR THROUGHOUT THE DAY TODAY ACROSS
WESTERN AND NORTHERN TEXAS AND SOUTHERN OKLAHOMA. MORE SIGNIFICANT
STORMS…HOWEVER…LIKELY WILL DEVELOP LATE TODAY AND TONIGHT FROM
WEST CENTRAL TEXAS NORTH AND EAST ACROSS THE RED VALLEY INTO
SOUTHERN AND EASTERN OKLAHOMA. ESPECIALLY IN CENTRAL AND NORTH
TEXAS…THESE STORMS MAY PRODUCE STRONG TORNADOES…IN ADDITION TO
VERY LARGE HAIL AND DAMAGING WINDS.

THE THREAT FOR TORNADOES…HAIL AND DAMAGING WINDS LIKELY WILL
CONTINUE OVER PARTS OF TEXAS AND OKLAHOMA THROUGH THURSDAY MORNING.
THIS THREAT WILL ALSO EXPAND NORTH AND EAST ACROSS THE OZARKS INTO A
LARGE PART OF THE MISSISSIPPI AND LOWER OHIO VALLEYS LATER THURSDAY
AND THURSDAY NIGHT.

THOSE IN THE THREATENED AREA ARE URGED TO REVIEW SEVERE WEATHER
SAFETY RULES AND TO LISTEN TO RADIO…TELEVISION…AND NOAA WEATHER
RADIO FOR POSSIBLE WATCHES…WARNINGS…AND STATEMENTS LATER TODAY.

..CORFIDI.. 04/09/2008

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