Tropical Storm Hermine - September 5-8 2010

Summary

Tropical Depression Hermine was a unique storm in that it formed as a result of the remnants of Tropical Depression number eleven in the Pacific crossing into the Southwest Gulf of Mexico on Sunday September 5, 2010. Hermine quickly gained strength becoming a strong tropical storm with winds of 60 mph in just 15 hours, and made landfall in northeast Mexico exactly 24 hours after it formed on Monday evening, September 6. The tropical storm then turned northward and moved quickly across south Texas into the Texas Hill Country on Tuesday September 7, bringing torrential rainfall, damaging winds and high tides.

The corridor of strongest winds spanned an area along the South Texas coast from near Brownsville to San Antonio. Wind gusts between 50 and 70 mph were reported along the track. Damage was confined primarily to trees, signs, and metal buildings. Hardest hit areas were the cities of Bishop and Orange Grove where the eyewall tracked directly overhead. The storm knocked out power to approximately 20,000 customers in the Coastal Bend.

The heaviest rains fell across the northeast Coastal Bend near Victoria and Seadrift where 4 to 8 inches were reported. Approximately 2 to 3 inches fell across the central Coastal Bend generally east of Highway 281.

Although a few tornado warnings were issued based on radar signatures, there were no confirmed tornadoes.

The strong winds and high surf caused tide levels to peak around 3.5 feet mean sea level along the barrier islands and near 3 feet mean sea level over the inland bays. This was about 2 feet above normal. The higher than normal tides resulted in minor flooding of area beaches, beach access roads and low areas around the inland bays.

Hermine continued tracking northward into north central Texas on Tuesday night and produced life threatening flash floods between Austin and Waco. A large swath of 10 to 15 inches of rain fell in those areas.

Overall, the Coastal Bend faired very well from this storm, but it serves as a reminder that storms can develop very quickly and that Coastal Bend residents should remain in a constant state of readiness, especially during the peak months of the Hurricane Season.

Track

 

Left double-click zooms in, right double-click zooms out and dragging the mouse pointer pans the display. Click the track icons for additional storm information.

Radar Loop

KCRP Radar Reflectivity loop beginning at 204 AM CDT on 09/07/10 and ending at 1051 AM CDT on 09/07/10.


Satellite Loop

Infrared Satellite loop beginning at 932 PM CDT on 09/05/10 and ending at 632 AM CDT on 09/08/10.

Damage Photos

Swinney Switch Pictures Robstown Pictures

Swinney Switch Damage Photos

Robstown Damage Photos

Orange Grove Pictures Kingsville Pictures

Orange Grove Damage Photos

Kingsville Damage Photos

Bishop Pictures

Bishop Damage Photos

Storm Reports

Location Event Time Date Notes
Port Aransas 2.15 foot Storm Surge 1115 AM 9/6/10 Water up to dunes
Portland 2.00 foot Storm Surge 1230 PM 9/6/10 TXDOT reported water on road at Indian Point
Ingleside 2.00 foot Storm Surge 1245 PM 9/6/10 DPS reported water over the road at Ingleside near Bay
Bishop Spotter reported roof damage 430 AM 9/7/10 Alamo Street
Kingsville Wind gust to 58 mph 447 AM 9/7/10 Navy Kingsville
Kingsville West side of city lost power 500 AM 9/7/10 Reported by Emergency Manager
Kingsville Wind gust to 62 mph 531 AM 9/7/10 Navy Kingsville, sustained wind 43 mph
Alice Wind gust to 54 mph 540 AM 9/7/10 Airport
Robstown Wind gust to 52 mph 545 AM 9/7/10 TXDOT
Kingsville Wind gust to 58 mph 550 AM 9/7/10 Power outages, large tree limbs and fence down
Corpus Christi Wind gust to 55 mph 600 AM 9/7/10 Sustained 40 MPH at Airport
Nueces and Kleberg Counties Power outages 625 AM 9/7/10 2300 and 4300 customers without power, respectively
Alice Power lines and limbs down 625 AM 9/7/10 Newspaper reported. Few signs knocked down.
Orange Grove Wind gust to 54 mph 658 AM 9/7/10 Power lines and large tree limbs down
Lagarto Estimated 70 MPH wind gust 815 AM 9/7/10 South side of Lake Corpus Christi
Mathis Measured 70 MPH wind gust 823 AM 9/7/10 Intersection of I-37 and FM 888
Lakeside Tree down 830 AM 9/7/10 Tree fell through house in Swinney Switch
Inez Flooding 909 AM 9/7/10 Along Ben Bolt road

Wind

Tropical Storm Hermine Wind Swath
Land Location Peak Wind (mph) Marine Location Peak Wind (mph)
Kingsville NAS 63 Mustang Oil Platform 68
Corpus Christi Intl Airport 55 Port Aransas 60
Alice 54 Baffin Bay 55
Orange Grove 54 South Bird Island 55
Rockport 52 Port OConnor 55
Robstown 52 Bob Hall Pier 54
Corpus Christi NAS 52 Buoy 42020 49
Beeville 49 Rockport NOS 48
Waldron Field 47 Seadrift 47
Cabinass Field 47 Nueces Delta Watershed 46
Matagorda Island RAWS 47
Ingleside 46
Victoria 45
George West RAWS 45
Aransas National Wildlife Refuge RAWS 44
Port Lavaca 38
Victoria RAWS 36
McMullen Target Range 30

Rainfall

TS Hermine Storm Total Rainfall

Storm Total Rainfall for Hermine


Location Inches Location Inches
Austwell 6 SSE 7.51 Refugio 5 N 3.94
Victoria 4 ENE 7.34 4 WNW CC NAS 3.88
Victoria 2 W 7.30 Aransas Pass 2 NW 3.74
Bloomington 2 NNW 7.21 Orange Grove 8 WNW 3.53
Victoria 1 E 6.92 Rockport 3.52
Telferner 3 N 6.84 San Diego 1 SW 3.50
Victoria 4 NNW 6.80 Flour Bluff 4 WNW 3.39
Austwell 6.74 Sandia 2 NNE 3.38
Placedo 4 N 6.71 Corpus Christi 6 E 3.38
Victoria Airport 6.68 Ricardo 2 ENE 3.30
Fannin 6 ESE 6.56 Corpus Christi NAS 3.24
Seadrift 3 NNW 6.25 Kingsville 1 E 3.24
Victoria 2 NNW 6.21 Corpus Christi 3 NE 3.18
Seadrift 4 ENE 6.08 Corpus Christi 7 ESE 3.11
Rockport 1 N 6.07 Corpus Christi 5 ESE 3.07
Nursery 5 W 6.00 Ben Bolt 5 NNW 3.06
Victoria 2 S 5.99 Kingsville 3 NNW 3.04
Fulton 2 W 5.98 Flour Bluff 2 WNW 2.97
Fannin 6 WNW 5.98 7 W CC NAS 2.89
Telferner 4 S 5.88 George West 2 S 2.69
Fannin 3 ENE 5.75 Odem 3 ESE 2.68
Schroeder 1 NE 5.57 Normanna 6 S 2.60
Goliad 5.51 Ricardo 5 E 2.58
Victoria 3 NW 5.50 Beeville 7 ESE 2.48
Rockport 2 S 5.36 Portland 1 NW 2.39
Fulton 2 WNW 5.21 George West 3 NNW 2.35
Port Lavaca 2 WSW 4.93 Corus Christi Intl Airport 2.35
Weesatche 5 NNE 4.84 Corpus Christi 1 NNW 2.29
Goliad 4 NW 4.82 Flour Bluff 1 N 2.26
Port Aransas 1 ENE 4.64 Robstown 1 SSW 2.21
Weesatche 1 ENE 4.52 Flour Bluff 14 S 2.10
Flour Bluff 5 ESE 4.46 Three Rivers 8 NNE 2.08
Port Aransas 3 SSE 4.46 Bishop 2 NW 1.98
Flour Bluff 5 ESE 4.45 Loma Alta 5 N 1.80
Goliad 1 WSW 4.43 Calliham 3 NW 1.76
Goliad 2 SE 4.28 Three Rivers 5 W 1.26
Orange Grove 3 NNW 4.15 Cross 1.21
St. Paul 3 S 4.00 Cotulla 0.98

Rainfall Totals from 700 PM CDT 9/5/10 through 700 AM CDT 9/8/10.

 


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