Tornado warning harrisburg pa

Jet stream and climate change combined to make the winter of one of the wettest and warmest on record in south central Pennsylvania.

Sunday Breezy. Today: A chance of showers, mainly after 4pm. Cloudy, with a high near East wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible. Tonight: Showers likely, mainly between 11pm and 1am.

Tornado warning harrisburg pa

A squall line with embedded sustained supercells crossed into portions of southeast Missouri and southern Illinois during the early morning hours on February 29, The embedded supercells raced east-northeast at 60 to 70 mph, while the line moved southeast at a slower rate. The storms strengthened as they encountered richer low-level moisture, with surface dew points around 60 degrees spreading rapidly north-northeastward up the Mississippi Valley. Intense low to mid-level wind fields maintained the intensity of tornadic storms despite weak instability due to lack of solar heating. A south-southwesterly low level jet from 60 to 70 knots veered to west-southwest around 75 knots at mb. Out of the 13 tornadoes that occurred that day, the most intense tornado was an EF4, which produced substantial damage to parts of Harrisburg and Ridgway Illinois. A few days before this tornado occurred, NWS Paducah and the Storm Prediction Center forecasters were already becoming concerned about the possibility of severe weather and tornadoes. Forecast discussions from NWS Paducah on the morning of February 27th highlighted the threat for severe weather and isolated tornadoes for the early morning hours on the 29th, due to the high degree of wind shear that was forecast. This threat for severe weather continued to be advertised with subsequent forecast discussions leading up to the event. In fact, almost 24 hours before the Harrisburg tornado occurred, forecasters at the NWS in Paducah issued this graphic:. Looking at the upper air charts mb from 12Z Feb 28 through 12Z Feb 29 Morning of the 28th through the morning of the 29th , shows the evolution of the upper trough. It starts out in the four corners region and then migrates northeast, strengthens, and becomes negatively titled and a closed low develops over northwest IA:. At mb, low pressure rapidly intensifies as it moves northeast, which allowed winds to strengthen and push warmer air and moisture up into our region:. Roughly twenty four hours before the Harrisburg tornado, on the morning of February 28th, , folks woke up to a rather chilly morning with temperatures in the 30s. The atmosphere was also very dry with dewpoints only in the 20s.

Wind Chill Advisory. Wind Advisory.

A Severe Thunderstorm Watch is issued when severe thunderstorms are possible in and near the watch area. It does not mean that they will occur. It only means they are possible. A Severe Thunderstorm Warning is issued when severe thunderstorms are occurring or imminent in the warning area. A Tornado Watch is issued when severe thunderstorms and tornadoes are possible in and near the watch area. Likelihood of a tornado within the given area based on radar or actual sighting; usually accompanied by conditions indicated above for "Severe Thunderstorm Warning".

Reports continue to come in about damage caused in the last 24 hours by torrential rains and heavy winds that tore through the state. The microburst had estimated winds of between and mph, which would be equivalent to an EF1 tornado. Trees were snapped and uprooted and campsites and vehicles in the area were damaged, the NWS said. There were no injuries or deaths reported where the microburst made landfall, according to the NWS. For other parts of the state, flooding and damage from the storms became a greater concern. The American Red Cross reported assisting people in at least three cases related to storm damage. First, in the western part of the state, a tree fell on a home in Crawford County. Then, the American Red Cross assisted one family in Harrisburg after their home flooded from the storm.

Tornado warning harrisburg pa

Monster blizzard closes I in Sierra Nevada amid blizzard conditions. Dangers to linger well after massive blizzard exits the Sierra Nevada. Record warmth and wildfire threats to grip Central US early this week.

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Storm Surge Warning. Another tornado formed in Williamson county in southern IL at am, which ended up becoming an EF2 in intensity as it moved across a good part of southern Williamson County IL:. It does not mean that they will occur. Excessive Heat Warning. All Rights Reserved. Voice your opinion or tell us about page issues Partly sunny, with a high near In fact, almost 24 hours before the Harrisburg tornado occurred, forecasters at the NWS in Paducah issued this graphic:. Some cities are experiencing a whiplash in which they are going from record highs to severe storms to snow and freezing temperatures in a matter of days. All rights reserved About Us. Tornado Watch. Weather Warnings Explained. Thursday: A slight chance of showers before 8am, then a slight chance of rain between 8am and 2pm. E-mail the Harrisburg Weather Warnings.

Monster blizzard closes I in Sierra Nevada amid blizzard conditions.

More maps from AccuWeather». Low around Janet Pickel. New Cumberland, PA. Disclaimer Information Quality Help Glossary. Red Flag Warning. Tropical Storm Warning. Customize Your Weather. Sunday Night: Partly cloudy, with a low around Lawsuit blames fallen power pole for starting Smokehouse Creek Fire. Highspire, PA. The graphic below shows the placement of the cold front at around midnight:. Flash Flood Warning. However, it was the degree of wind shear in the environment that turned some of these storms into supercells.