The USA Disaster Situation Report
The Daily USA Disaster Situation Report
For March 14, 2001
Christopher Effgen, Editor, host{at}disastercenter.com
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IN THIS ISSUE
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=> USA Daily Temperature Extremes
=> Special Notes
=> Current Active National Weather Service Warnings:
=> Severe Weather Probability Forecast
=> Precipitation Forecast, Excessive Rainfall, Heavy Snow And/Or Significant
Icing Forecast
=> USA Flood Report
=> USA Fire Report and Forecast
=> USA Earthquake Report
=> Yesterday's USA Severe Weather Reports
=> Guest Column-
=> Sponsored by The Rothstein Catalog On Disaster Recovery
**** ARTICLES ****
=> Article New Volcanic Activity - CLEVELAND Aleutian Islands, USA
=> Article National Weather Service Day 3-10 U.S. Threats page Valid
Friday, March 16, 2001 - Tuesday, March 27, 2001
=> Classified Ads
=> Links Area
=> How to Be Featured as our Guest Columnist
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The Daily USA Disaster Situation Report
For March 14, 2001
Christopher Effgen, Editor, host{at}disastercenter.com
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IN THIS ISSUE
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=> USA Daily Temperature Extremes
National Temperature Extremes
High Tue...93 At West Palm Beach FL
Low Wed...10 At Bemidji MN
=> Special Notes
Red flag...a red flag warning is in effect today from 100 PM EST until 700
PM for several inland Florida counties due to long duration of minimum
relative humidities below 35 percent.
Stratwarm Alert Exists Stratwarm Wednesday
Comment: STRATWARM ALERT/WEDNESDAY/STRATWARM EXISTS. AS A RESULT OF THE
MAJOR WARMING THE CIRCULATION IN THE LOWER STRATOSPHERE REMAINS FURTHER
DISTURBED LEADING TO A REVERSED TEMPERATURE GRADIENT UP TO 20 HPA. IN THE
MIDDLE AND UPPER STRATOSPHERE THE COLD AND ELONGATED VORTEX WEAKENS. SLOW
TRANSITIONS TO SUMMER CONDITIONS MOST PROBABLE.
=> Current Active National Weather Service Warnings:
=> Severe Weather Probability Forecast
The forecast probability of an event is by the stated percentage or greater
for the event, within 25 miles of any point for the area described.
Tornado Risk - Moderately Severe
The 10% probabilty area for torndaoes F2 and greater covers far east
southeast Louisiana, southeast Mississippi, southwest Alabama and the west
central and western portions of Florida's panhandle.
There is a 2% probability of a tornado over central southeast thorugh east
southeast Texas, the souutheast 2/3 of Louisiana, the southeast 1/2 of
Mississippi, Alabama except the northern part, the southwest 3/4 of Georgia,
and Florida's panhandle.
The 5% probability area covers far east southeast Texas, the southeast 1/2
of Louisiana, the southeast 1/2 of Mississippi, Alabama except the northern
part,central west through southwest Georgia, and Florida's panhandle.
The 15% probability area covers southeast Louisiana, southeast Mississippi,
the southern 1/2 of Alabama, and the central and western portions of
Florida's panhandle.
Hail Risk - Moderate
There is a 5% probability of hail 3/4 inch or larger over central north
through northeast Oklahoma, the eastern 1/2 of Kansas, southeast Nebraska,
far southeast Iowa, far western Missouri, and extreme northeast Arkansas.
Also, south central, central through central east Texas, Louisiana except
the far northern area, the south southeast 2/3 of Mississippi, Alabama
except the far northern area, the west southwest 1/2 of Georgia, and
Florida's panhandle.
The 15% probability area covers eastern Kansas, far southeast Nebraska, and
extreme west northwest Missouri. Also, southcentral through central east
Texas, the southern 2/3 of Louisiana, the southeast 1/2 of Mississippi,
Alabama except the northern area, far central west through southwest
Georgia, and the central and western portions of Florida's panhandle.
Wind Risk - Moderately Severe
There is a 10% probability area for east south east Louisiana, southeast
Mississippi, the southern 1/2 of Alabama, and the western portions of
Florida's panhandle.
There is a 5% probability of winds in excess of 50 knots over central north
through northeast Oklahoma, the eastern 1/2 of Kansas, southeast Nebraska,
far southeast Iowa, far western Missouri, and extreme northeast Arkansas.
Also, south central, central through central east Texas, Louisiana except
the far northern area, the south southeast 2/3 of Mississippi, Alabama
except the far northern area, the west southwest 1/2 of Georgia, and
Florida's panhandle.
The 15% probability area covers the southeast 1/2 of Louisiana, the
southeast 1/2 of Mississippi, Alabama except the northern area, thesouthwest
4/5 of Georgia, and Florida's panhandle.
The 25% probability area covers southeast Louisiana, southeast Mississippi,
the southern 1/2 of Alabama, and the western portions of Florida's
panhandle.
Tomorrow's Risk - Moderate
There is a 5% probability of any severe weather tomorrow over far northeast
Louisiana, central and eastern Arkansas, southeastern Missouri, central and
southern Illinois, the southwest 3/4 of Indiana, extreme southwest Ohio,
Kentucky, south southwest and south southeast Virginia, Tenessee, North and
South Carolina, Georgia, Floida except the southern and far western portion
of Florida's panhandle.Alabama except the southeastern area, and central and
northern Mississippi.
The 15% probability area covers far southeast Missouri, southern Illinois
southwest Indiana, Kentucky except the western part, Tennessee except the
far south western part, far northwest Alabama, northern Mississippi and east
northeast Arkansas. Also, extreme east southeast Alabama, the southeast 3/4
of Georgia, South Carolina except the far northwets area, the southeast 1/2
of North Carolina and Florida except the central, southern and far western
part of Florida's panhandle.
The 25% probability area is over extreme northeast Arkansas, extreme
southeast Missouri, extreme central north Mississippi,the northwest 1/2 of
Tennessee, west central and western Kentucky and far southern Illinois.
=> Precipitation Forecast, Excessive Rainfall, Heavy Snow And/Or Significant
Icing Forecast
Precipitation Forecast
The 24 hour precipitation forecast is calling for over 2 inches of
precipitation over east northeast Louisiana, and central through central
west Mississippi.
Over 1 inch is forecast for east central through eastern Texas, extreme
southeast Oklahoma, extreme west southwest Arkansas, Louisiana, Mississippi
except the northwest and southeast corners, central north and northern
Alabama, south southeast Tennessee, northwest Georgia, far northeast South
Carolina and extreme southwest North Carolina.
The 24 - 48 hour precipitation forecast is calling for 1 inch of
precipitation over Southeast Iowa, central north and northeast Missouri, and
the northern 1/2 of Illinois. Also over central north northeast North
Carolina, and the bend area of Florida.
Excessive Rainfall Forecast
Rainfall potential exceeds flash flood values over east central and eastern
Texas, southern Arkansas, the northwest 1/3 of Louisiana, the northwest 2/3
of Mississippi, the northwest 1/4 of Alabama, and extreme northwest Georgia.
USA heavy snow and/or significant icing
>From noon to midnight today EST the probability of 4 inches or greater of
snow is low central, cetral south and southeast Nebraska, extreme north
northeast Kansas, extreme northwest Missouri, and central through southwest
Iowa.
The moderate probability area is over southeast Nebraska, and southwest
Iowa.
The high probability area is over extreme southeast Nebraska, and extreme
southwest Iowa.
The probability of 1/4 inch or greater of ice accumulation is less than 20%
>From midnight to noon tomorrow EST the probability of 4 inches or greater of
snow is low over central through north northeast Kansas, southeast Nebraska,
the south southeast 1/3 of Iowa, extreme west northwest Illinois and
northwest Missouri.
The moderate probability area is over north central through north northeast
Kansas, extreme southeast Nebraska, south southeast Iowa, and northwest
Missouri.
The high probability area is over northeast Kansas, extreme south southeast
Iowa, and far northwest Missouri.
The probability of 1/4 inch or greater of ice accumulation is less than 20%
Current USA Snow and Ice Cover
http://www.rap.ucar.edu/weather/surface/us_NESDISsnow.gif
=> USA Flood Report
NATIONAL HYDROLOGIC SUMMARY
NATIONAL WEATHER SERVICE HEADQUARTERS
0900 AM EST WED MAR 14 2001
FLOOD SUMMARY
FLOODING CONTINUES IN THE SOUTH
FLOODING CONTINUES IN PARTS OF TEXAS, LOUISIANA, MISSISSIPPI,
ALABAMA AND GEORGIA.
OUTLOOK FOR TODAY
RAIN MAY CAUSE STILL MORE FLOODING FROM TEXAS THROUGH ARKANSAS,
LOUISIANA, MISSISSIPPI, ALABAMA AND INTO GEORGIA A FLOOD WATCH
IS IN EFFECT FOR NORTHEASTERN TEXAS.
A FLOOD WATCH IS IN EFFECT FOR PORTIONS OF IOWA, MISSOURI AND
ILLINOIS FOR TONIGHT AND TOMORROW AS A RESULT OF EXPECTED RAIN
AND SNOW MELT IN ALREADY WET AREAS.
FLASH FLOODING:
FLOOD/FLASH FLOOD WARNINGS AND/OR URBAN AND SMALL STREAM FLOOD
ADVISORIES WERE ISSUED OVER THE LAST DAY FOR:
FLORIDA: PARTS OF NORTHEASTERN FLORIDA
WIDESPREAD PRECIPITATION AMOUNTS OF 3-5 INCHES, WITH A
FEW LOCATIONS AT 7 INCHES
RIVER FLOODING:
RIVERS AND STREAMS WITH LOCATIONS EITHER ABOVE FLOOD STAGE OR
EXPECTED TO RISE ABOVE FLOOD STAGE INCLUDE:
ALABAMA: THE TOMBIGBEE RIVER
ARKANSAS: THE CACHE, OUACHITA AND WHITE RIVERS
FLORIDA: THE APPALACHICOLA, CHOCTAWHATCHEE AND
ESCAMBIA RIVERS
GEORGIA: THE ALTAMAHA, OCMULGEE, OCONEE, OGEECHEE, OHOOPEE
AND WITHLACOOCHEE RIVERS
ILLINOIS: THE ILLINOIS RIVER
KANSAS: THE BIG BLUE RIVER
LOUISIANA: THE ATCHAFALAYA, BLACK, BOEUF, BOGUE CHITTO,
CALCASIEU, LITTLE, MISSISSIPPI, OUACHITA, PEARL, RED, SABINE
AND TANGIPAHOA RIVERS; RED CHUTE BAYOU AND BAYOU DORCHEAT;
LAKE BISTANEAU, CADDO LAKE; THE BAYOU BODCAU RESERVOIR
THE BAYOU BODCAU RESERVOIR IS EXPECTED TO RISE TO A NEW
RECORD LEVEL NEXT WEEK, RESULTING IN SIGNIFICANT
FLOODING
SEVERE BACKWATER FLOODING OF TRIBUTARIES ALONG THE
REDRIVER, INCLUDING ALOHA, KISATCHIE, LOGGY AND SALINE
BAYOUS, AS WELL AS BAYOUS NANTACHES AND PIERRE, AND
BLACK LAKE
MISSISSIPPI: THE BIG BLACK, BILOXI, CHICKASWHAY, LEAF,
MISSISSIPPI, PASCAGOULA, PEARL, TALLAHATCHIE, WOLF,
YALOBUSHA, YAZOO AND YOCKANOOKANY RIVERS
SOUTH DAKOTA: THE WHITE RIVER
TEXAS: THE ANGELINA AND EAST FORK OF THE ANGELINA, NAVASOTA,
NECHES, RED, SABINE, SOUTH AND COWLEECH FORKS OF THE SABINE,
SULPHUR AND SOUTH SULPHUR, AND TRINITY RIVERS; ATTOYAC AND
BLACK CYPRESS BAYOUS; BIG CYPRESS, CHAMBERS, LAKE FORK,
LITTLE CYPRESS, MUD AND WHITE OAK CREEKS
=> USA Fire Report and Forecast
INCIDENT MANAGEMENT SITUATION REPORT
FRIDAY, MARCH 9, 2001 - 1000 MST
NATIONAL PREPARDNESS LEVEL 1
CURRENT SITUATION:
The Southern Area reported five new large fires to the National
Interagency Coordination Center this past week and five of their large
fires reached containment status. Moderate initial attack activity
continues in Florida, Georgia and South Carolina. A low in the Gulf of
Mexico will bring scattered showers to the Southeast today with fair
weather over the weekend.
SOUTHERN AREA LARGE FIRES:
SOPCHOPPY, Florida Division of Forestry. This fire is near Sopchoppy, FL
and jumped Highway 319 in several spots.
DALLUS CREEK, Florida Division of Forestry. This fire is near Perry, FL
and has spotted into several hardwood sloughs.
RED BEACH, Florida Division of Forestry. This fire is in Highlands County,
FL. No new information received.
TALL PINE, Florida Division of Forestry. This fire is in Polk County, FL.
No new information received.
MULTI COMMAND, Florida Division of Forestry. This fire is in Dade County,
FL.
SUMMERSET COMMAND, Florida Division of Forestry. This fire is in Martin
County, FL. No new information received.
OUTLOOK:
A cold front will move through the Southeast Friday with scattered
showers. Conditions will be fair Saturday and Sunday. Another cold front
will move through the region Monday and Tuesday with a chance of showers
and wind with decreasing clouds Wednesday and Thursday. High temperatures
will mostly be in the 60's except for Florida with high temperatures in
the 70's and 80's.
South Texas will have high pressure building over the area Friday with
partly cloudy skies and winds at 15 to 25 mph. A frontal system will move
through the area late Saturday bringing a chance of showers till Monday.
High temperatures will be mostly in the 70's to mid 80's.
In the West, low pressure centered near Lake Tahoe will produce a chance
of showers from parts of Oregon down into Northern California. Skies will
be partly to mostly cloudy across the rest of the region. High
temperatures will be in the 40's to mid 50's across most of the West, with
high temperatures in the 50's to mid 60's from Eastern Wyoming south into
California, New Mexico and Arizona.
A high pressure system over St. Louis will create sunny to partly cloudy
skies over the Northern Plains states. Southward into Texas there will be
cloud cover but conditions will be dry. Michigan and much of Ohio will
remain under the influence of low pressure with a chance of early morning
snow flurries, then will begin to clear. High temperatures will be in the
30's from North Dakota into Indiana and Ohio, 40's for central South
Dakota all the way to Missouri, 50's for central Nebraska to east Oklahoma
and 60's over western Kansas and Oklahoma.
Snow can be expected over most of the Northeast as a low pressure system
moves into the Atlantic just off Long Island. Northern Maine, Maryland and
the Virginias will have mostly cloudy skies. High temperatures will be in
the low 30's to low 40's in areas of snowfall while Washington D.C. south
will have high temperatures in the mid 40's to the mid 50's.
=> USA Earthquake Report
UNITED STATES GEOLOGICAL SURVEY
NATIONAL EARTHQUAKE INFORMATION CENTER
GOLDEN, COLORADO
LISTS OF U.S. EARTHQUAKES IN THE LAST 30 HOURS
Prepared by USGS/NEIC 2001 MAR 14 at 00:15 UTC
EARTHQUAKES IN WEST CENTRAL UNITED STATES
(35.8 TO 40.3 N, 102.0 TO 125.0 W)
Date Time (UTC) Lat Long Depth Magnitude
2001 MAR 13 01:27:26.00 38.7 N 112.5 W 0 km 2.8
25 miles W of Richfield, Utah
2001 MAR 13 13:43:04.82 38.7 N 112.6 W 5 km 3.3
25 miles W of Richfield, Utah
=> Yesterday's USA Severe Weather Reports
Note: All data is considered preliminary
Tornado Reports
Time F-Scale Location County State Lat Lon Comments
1450 UNK DAYTONA BEACH VOLUSIA FL 2921 8103 *** 2 INJ *** WIND DAMAGE
SWATH 2 1/2 MILES WIDE AND 1/4 MILE LONG WITH STRONG F0 TO WEAK/MODERATE F1
TORNADO DAMAGE OCCURRING NEAR THE DAYTONA BEACH/HOLLY HILL LINE F (MLB)
Hail Reports
Time Size Location County State Lat Lon Comments
2045 75 XENIA GREENE OH 3968 8393 (ILN)
2252 88 10 N HAMILTON BUTLER OH 3945 8458 DIME TO NICKLE SIZE (ILN)
Wind Reports
Time Speed Location County State Lat Lon Comments
2105 UNK SPRINGBORO WARREN OH 3954 8423 TREE DOWN AND SEVERAL LARGE TREE
LIMBS (ILN)
2110 UNK WILMINGTON CLINTON OH 3945 8383 TEMPORARY METAL STRUCTURE BLOWN
OVER IN MALL PARKING LOT. DAMAGED SEVERAL CARS. (ILN)
2130 UNK 10 N ASH OH 4021 8266 218 AND NUMEROUS TREES BLOWN DOWN. (ILN)
2130 UNK WASHINGTON COURT HOUSE FAYETTE OH 3953 8343 SEMI BLOWN OVER ON ST
RT 218 AND NUMEROUS TREES BLOWN DOWN. (ILN)
2145 UNK HILLSBORO HIGHLAND OH 3919 8361 TREES DOWN ACROSS THE TOWN. (ILN)
2205 UNK TRENTON BUTLER OH 3948 8444 TREES DOWN IN MADISON TOWNSHIP (ILN)
2235 UNK SPRINGBORO WARREN OH 3954 8423 LARGE LIMBS DOWNED. (ILN)
2115 65 WILMINGTON CLINTON OH 3945 8383 MEASURED AT WILMINGTON AIRPORT.
(ILN)
0130 UNK TOPPENISH YAKIMA WA 4638 12030 ROOF BLOWN OFF LIBERTY THEATER.
ESTIMATED GUSTS TO 50 MPH. . REPORTED BY STORM SPOTTER. (PDT)
0130 UNK YAKIMA YAKIMA WA 4659 12050 TREE FELL ON HOUSE IN YAKIMA CREATING
A HOUSE FIRE. TREE FELL DUE TO STRONG WINDS. REPORTED BY PUBLIC. (PDT)
0230 UNK LOUDOUN COUNTY LOUDOUN VA 3910 7764 TREES DOWN THROUGHOUT COUNTY
(WBC)
0240 UNK FAIRFAX FAIRFAX VA 3884 7730 TREES DOWN OVER ENTIRE COUNTY (WBC)
0240 UNK FAUQUIER COUNTY FAUQUIER VA 3875 7780 TREES DOWN THROUGHOUT
COUNTY (WBC)
0245 UNK SILVER SPRING MONTGOMERY MD 3900 7704 NUMEROUS REPORTS OF TREES
DOWN HERE AND ACROSS ENTIRE COUNTY (WBC)
0255 UNK WASHINGTON DC 3884 7703 9 TREES DOWN ACROSS THE CITY. 900
CUSTOMERS WITHOUT POWER (WBC)
0300 UNK CARROLL CARROLL MD 3928 7663 TREES DOWN ACROSS COUNTY (WBC)
0305 UNK ZIHIMAN ALLEGANY MD 3964 7866 OVER ENTIRE COUNTY (WBC)
0305 UNK HOWARD COUNTY HOWARD MD 3926 7691 TOTAL OF 13 TREES DOWN OVER
ENTIRE COUNTY (WBC)
0310 UNK BALTIMORE BALTIMORE MD 3929 7661 TREES AND POWER LINES ACROSS THE
CITY (WBC)
0310 UNK CALVERT CALVERT MD 3969 7598 SEVERAL TREES DOWN ACROSS COUNTY
(WBC)
0310 UNK CHARLES COUNTY CHARLES MD 3849 7693 TREES DOWN... SCATTERED OVER
COUNTY (WBC)
0245 71 MANASSAS PRINCE WILLIAM VA 3875 7748 MEASURED AT WESLEY AVE AND
FAIRVIEW AVE (WBC)
0245 62 WASHINGTON DC 3884 7703 MEASURED ON TOP OF A BUILDING AT FLORIDA
AVENUE AND CONNECTICUT AVENUE (WBC)
0246 62 RESTON FAIRFAX VA 3896 7730 MEASURED BY AN AWS STATION (WBC)
0250 60 ARLINGTON ARLINGTON VA 3888 7713 MEASURED BY AWS STATION AT
JEFFERSON MIDDLE SCHOOL (WBC)
0255 61 ALEXANDRIA FAIRFAX VA 3881 7708 MEASURED BY AWS STATION (WBC)
0320 61 ASHBURN LOUDOUN VA 3904 7748 (WBC)
0325 60 CHESAPEAKE BEACH CALVERT MD 3868 7653 ESTIMATED BY SPOTTER (WBC)
0353 61 SPRING GROVE YORK PA 3986 7686 (CTP)
Fields marked UNK are unknown
All Times UTC
Wind Gusts in MPH
Hail Sizes in 1/100 of an Inch (75 = 0.75")
=> Guest Column
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=> New Volcanic Activity - CLEVELAND Aleutian Islands, USA
52.82°N, 169.95°W; summit elev. 1,730 m; All times are local (= UTC- 9
hours)
The AVO reported that an explosive eruption at Cleveland began at 0500 on 11
March. The resultant ash cloud was visible on satellite imagery from the
onset of the eruption and after it ended 3 hours later. Wind-data analysis
suggested that the ash cloud reached a height of 6-7.6 km a.s.l. By 1400 the
main part of the ash cloud was detached from the volcano and drifting to the
E. Satellite imagery from 2030 showed that the ash cloud was located in two
main regions; one region was centered ~80 km S of Dutch Harbor and was ~80
km in diameter, and the other was centered ~160 km SE of Dutch Harbor and
extended ~160 km E to W and ~65 km N to S. Both areas of ash were visible on
satellite imagery through 1315 on 12 March. In addition, a thermal anomaly
on the volcano, which was first detected shortly after the eruption began,
persisted. AVO interpreted the thermal anomaly to indicate that unrest was
continuing at Cleveland and that further explosive activity could occur at
anytime. By 0930 on 13 March the ash cloud was no longer visible on
satellite imagery.
Background. The symmetrical Mount Cleveland stratovolcano is situated at the
western end of the uninhabited dumbbell-shaped Chuginadak Island in the
east-central Aleutians. The 1,730-m-high stratovolcano is the highest of the
Islands of Four Mountains volcanoes and is one of the most active in the
Aleutians. Numerous large lava flows descend its flanks. It is possible that
some 18th to 19th century eruptions attributed to Carlisle volcano, located
across the Carlisle Pass Strait to the NW, should be ascribed to Cleveland.
In 1944 Cleveland produced the only known fatality from an Aleutian
eruption. Recent eruptions from Mt. Cleveland have been characterized by
short-lived explosive ash emissions, at times accompanied by lava
fountaining and lava flows down the flanks.
Source: Alaska Volcano Observatory
<http://www.avo.alaska.edu/avo4/updates/updates.htm>
Anchorage VAAC <http://www.ssd.noaa.gov/VAAC/OTH/AK/messages.html>
Tokyo VAAC <http://www.ssd.noaa.gov/VAAC/OTH/JP/messages.html>
Cleveland Reports
<<http://www.volcano.si.edu/gvp/volcano/region11/aleutian/cleve/var.htm>>
from the monthly Bulletin of the Global Volcanism Network
=> National Weather Service Day 3-10 U.S. Threats page Valid Friday, March
16, 2001 - Tuesday, March 27, 2001.
Summary of Forecasts & Threats
SYNOPSIS: The models continue to indicate an unsettled and in many areas
stormy period for the next week or two for most of the nation. A series of
vigorous short waves rotating through a mean trough in central North America
will lay down additional snow cover, some in areas where there is already
abnormally heavy snow cover with large water content. Lingering blocking
over northeastern Canada and the mean trough in the middle of the country
suggests that colder than normal air will penetrate well south over much of
the U.S. The mean jet stream position continues across the southern part of
the country during most of the period, with a tendency to shift northward
towards the end. There is an indication that the more zonal pattern will
steer some Pacific moisture into the Northwest and alleviate the abnormally
low snowpack there.
THREATS
Heavy rain, strong to severe thunderstorms, and localized flooding are
possible from the lower Mississippi Valley across the Southeast from Sun
March 18 through Tue March 20.
Storms will produce heavy snow and strong winds over portions of the upper
Mississippi Valley and Great Lakes region on Fri March 16 and over the
southern Rockies and adjacent high Plains on Sat March 17 and Sun March 18.
Several storms adding to the abnormally heavy snow pack over parts of the
Midwest and Northeast increase the threat of widespread flooding later in
the Spring.
Long-term drought continues over most of Florida, and over western portions
of the Carolinas, eastern Tennessee, and northern Georgia. Significant
relief is likely in the Appalachian area but not in Florida.
The low mountain snowpack conditions that have developed over much of the
West may experience some relief during the next week or two.
DETAILED SUMMARY
For Friday March 16 through Sunday March 18: A storm will bring snow and
mixed precipitation to portions of the upper Mississippi Valley, Great
Lakes, and New England on Friday March 16. Strong winds may accompany the
storm in some areas. A second storm developing over the southern Rockies
will bring heavy snow and strong winds to parts of the southern Rockies and
high Plains on Saturday March 17 and Sunday March 18. There is a possibility
that heavy thunderstorms and severe weather could break out in east Texas
and the central Gulf states beginning on the 18th.
For Monday March 19 through Tuesday March 27: As this storm moves eastward,
it will probably bring more snow or mixed precipitation to the Northeast and
heavy rains and thunderstorms will extend eastward as far as the Carolinas
and the Florida Panhandle, with risk of local flooding, as several recent
storms have nearly saturated topsoils in some areas. Long-term drought in
the southern Appalachians and Piedmont area will be relieved, but little
significant rain is indicated for the dry areas of the Florida Peninsula.
Towards the end of the period, two or three storms are predicted to bring
significant moisture to the Pacific Northwest, somewhat alleviating the
deficient seasonal snowpack there. Additional precipitation predicted for
the upper Mississippi and Red River of the North valleys and over the
Northeast in areas of abnormally heavy snowpack with large water content may
set the stage for significant flooding later in the Spring if there is a
sudden thaw and/or heavy rain.
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